Summary

85f1986c9af0a2a2_backup.exe

File 85f1986c9af0a2a2_backup.exe

Summary
Download Resubmit sample

Size 446.8KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 198b64edaff020cd716fb81ef91f285b
SHA1 5778a8f5cdb5d3a1a2eaeb57e06159d00c32801b
SHA256 85f1986c9af0a2a2d3b03223f2e49a850c783a7ab5d58c23c664dc2c163001fd
SHA512
1ecc8d30f45648dce61ef2c59fb8f144f1355ad3f65585c874a0747759a04b3a08fec146771c091d6fc3c2f9c207e19ab2ff1e56d3e1016d5f3720c9f9beeb1a
CRC32 C805BAC8
ssdeep None
Yara
  • UPX - (no description)
  • suspicious_packer_section - The packer/protector section names/keywords
  • SEH__vba - (no description)
  • escalate_priv - Escalade priviledges
  • win_mutex - Create or check mutex
  • win_registry - Affect system registries
  • win_token - Affect system token

Score

This file is very suspicious, with a score of 10 out of 10!

Please notice: The scoring system is currently still in development and should be considered an alpha feature.

Autosubmit

Parent_Task_ID:6665543

Feedback

Expecting different results? Send us this analysis and we will inspect it. Click here

Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 11, 2025, 8:26 a.m. July 11, 2025, 8:34 a.m. 487 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-08 09:40:42,015 [analyzer] DEBUG: Starting analyzer from: C:\tmphzbxu3
2025-07-08 09:40:42,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\TRXoNfCfOaBKPOjuAciQOsUxO
2025-07-08 09:40:42,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\sFRKXylLUUaMNbBRHILYvLOXUF
2025-07-08 09:40:42,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-08 09:40:42,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-08 09:40:42,390 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-08 09:40:42,405 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-08 09:40:42,858 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-08 09:40:43,078 [analyzer] DEBUG: Loaded monitor into process with pid 500
2025-07-08 09:40:43,078 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-08 09:40:43,078 [analyzer] DEBUG: Started auxiliary module Human
2025-07-08 09:40:43,078 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-08 09:40:43,078 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-08 09:40:43,171 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-08 09:40:43,171 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-08 09:40:43,171 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-08 09:40:43,171 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-08 09:40:43,312 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\85f1986c9af0a2a2_backup.exe' with arguments '' and pid 3060
2025-07-08 09:40:43,562 [analyzer] DEBUG: Loaded monitor into process with pid 3060
2025-07-08 09:40:43,625 [analyzer] INFO: Added new file to list with pid 3060 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-08 09:40:43,640 [analyzer] INFO: Added new file to list with pid 3060 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-08 09:40:43,717 [analyzer] INFO: Injected into process with pid 2356 and name ''
2025-07-08 09:40:43,890 [analyzer] DEBUG: Loaded monitor into process with pid 2356
2025-07-08 09:40:44,000 [analyzer] INFO: Added new file to list with pid 3060 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-08 09:40:44,092 [analyzer] INFO: Added new file to list with pid 3060 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-08 09:40:44,953 [analyzer] INFO: Added new file to list with pid 2356 and path C:\backup.exe
2025-07-08 09:44:02,312 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-08 09:44:03,625 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-08 09:44:03,625 [lib.api.process] INFO: Successfully terminated process with pid 3060.
2025-07-08 09:44:03,625 [lib.api.process] INFO: Successfully terminated process with pid 2356.
2025-07-08 09:44:03,671 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-11 08:26:47,868 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:48,914 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:49,959 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:51,204 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:52,273 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:53,332 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:54,410 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:55,471 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:56,566 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:57,636 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:58,698 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:26:59,762 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:00,823 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:02,280 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:03,419 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:04,526 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:05,648 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:06,775 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:07,885 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:08,987 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:10,329 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:11,609 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:12,738 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:14,329 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:15,373 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:16,430 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:17,485 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:18,543 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:19,792 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:21,129 [cuckoo.core.scheduler] DEBUG: Task #6684533: no machine available yet
2025-07-11 08:27:22,434 [cuckoo.core.scheduler] INFO: Task #6684533: acquired machine win7x6425 (label=win7x6425)
2025-07-11 08:27:22,458 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.225 for task #6684533
2025-07-11 08:27:22,923 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 2707149 (interface=vboxnet0, host=192.168.168.225)
2025-07-11 08:27:23,625 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6425
2025-07-11 08:27:24,490 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6425 to vmcloak
2025-07-11 08:30:21,840 [cuckoo.core.guest] INFO: Starting analysis #6684533 on guest (id=win7x6425, ip=192.168.168.225)
2025-07-11 08:30:22,853 [cuckoo.core.guest] DEBUG: win7x6425: not ready yet
2025-07-11 08:30:27,876 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6425, ip=192.168.168.225)
2025-07-11 08:30:27,975 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6425, ip=192.168.168.225, monitor=latest, size=6660546)
2025-07-11 08:30:29,439 [cuckoo.core.resultserver] DEBUG: Task #6684533: live log analysis.log initialized.
2025-07-11 08:30:30,609 [cuckoo.core.resultserver] DEBUG: Task #6684533 is sending a BSON stream
2025-07-11 08:30:30,937 [cuckoo.core.resultserver] DEBUG: Task #6684533 is sending a BSON stream
2025-07-11 08:30:31,351 [cuckoo.core.resultserver] DEBUG: Task #6684533 is sending a BSON stream
2025-07-11 08:30:31,754 [cuckoo.core.resultserver] DEBUG: Task #6684533: File upload for 'shots/0001.jpg'
2025-07-11 08:30:31,769 [cuckoo.core.resultserver] DEBUG: Task #6684533 uploaded file length: 133477
2025-07-11 08:30:44,442 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:30:59,611 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:31:15,203 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:31:30,514 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:31:45,871 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:32:01,081 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:32:16,441 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:32:31,536 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:32:46,664 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:33:01,756 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:33:16,968 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:33:32,164 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:33:47,298 [cuckoo.core.guest] DEBUG: win7x6425: analysis #6684533 still processing
2025-07-11 08:33:49,950 [cuckoo.core.resultserver] DEBUG: Task #6684533: File upload for 'curtain/1751960642.5.curtain.log'
2025-07-11 08:33:49,953 [cuckoo.core.resultserver] DEBUG: Task #6684533 uploaded file length: 36
2025-07-11 08:33:50,976 [cuckoo.core.resultserver] DEBUG: Task #6684533: File upload for 'sysmon/1751960643.52.sysmon.xml'
2025-07-11 08:33:51,081 [cuckoo.core.resultserver] DEBUG: Task #6684533 uploaded file length: 15648122
2025-07-11 08:33:51,310 [cuckoo.core.resultserver] DEBUG: Task #6684533 had connection reset for <Context for LOG>
2025-07-11 08:33:51,320 [cuckoo.core.resultserver] DEBUG: Task #6684533: File upload for 'files/c3446d4a103f0ad7_backup.exe'
2025-07-11 08:33:51,323 [cuckoo.core.resultserver] DEBUG: Task #6684533: File upload for 'files/fad34fb4e77fb256_backup.exe'
2025-07-11 08:33:51,326 [cuckoo.core.resultserver] DEBUG: Task #6684533: File upload for 'files/f3574d21c72d9dcb_backup.exe'
2025-07-11 08:33:51,329 [cuckoo.core.resultserver] DEBUG: Task #6684533 uploaded file length: 457491
2025-07-11 08:33:51,335 [cuckoo.core.resultserver] DEBUG: Task #6684533 uploaded file length: 457493
2025-07-11 08:33:51,340 [cuckoo.core.resultserver] DEBUG: Task #6684533 uploaded file length: 457491
2025-07-11 08:33:53,341 [cuckoo.core.guest] INFO: win7x6425: analysis completed successfully
2025-07-11 08:33:53,364 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-11 08:33:53,401 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-11 08:33:54,551 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6425 to path /srv/cuckoo/cwd/storage/analyses/6684533/memory.dmp
2025-07-11 08:33:54,552 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6425
2025-07-11 08:34:54,391 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.225 for task #6684533
2025-07-11 08:34:55,017 [cuckoo.core.scheduler] DEBUG: Released database task #6684533
2025-07-11 08:34:55,042 [cuckoo.core.scheduler] INFO: Task #6684533: analysis procedure completed

Signatures

Yara rules detected for file (7 events)
description (no description) rule UPX
description The packer/protector section names/keywords rule suspicious_packer_section
description (no description) rule SEH__vba
description Escalade priviledges rule escalate_priv
description Create or check mutex rule win_mutex
description Affect system registries rule win_registry
description Affect system token rule win_token
The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)
section .imports
Creates executable files on the filesystem (5 events)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
file C:\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
Drops an executable to the user AppData folder (1 event)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) (1 event)
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 3060
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00370000
process_handle: 0xffffffff
1 0 0
The executable is compressed using UPX (2 events)
section UPX0 description Section name indicates UPX
section UPX1 description Section name indicates UPX
Attempts to modify Explorer settings to prevent file extensions from being displayed (1 event)
registry HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt
Attempts to modify Explorer settings to prevent hidden files from being displayed (1 event)
registry HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Hidden
File has been identified by 13 AntiVirus engine on IRMA as malicious (13 events)
G Data Antivirus (Windows) Virus: Trojan.Generic.4385790 (Engine A), Win32.Trojan.Vilsel.A (Engine B)
Avast Core Security (Linux) Win32:Vilsel-CT [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trellix (Linux) Generic VB.z trojan
WithSecure (Linux) Trojan.TR/ATRAPS.Gen2
eScan Antivirus (Linux) Trojan.Generic.4385790(DB)
ESET Security (Windows) Win32/VB.OZA trojan
Sophos Anti-Virus (Linux) Troj/VB-LET
DrWeb Antivirus (Linux) Trojan.Copyself.102
ClamAV (Linux) Win.Malware.Genpack-6989317-0
Bitdefender Antivirus (Linux) Trojan.Generic.4385790
Kaspersky Standard (Windows) Trojan.Win32.Vilsel.loy
Emsisoft Commandline Scanner (Windows) Trojan.Generic.4385790 (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

We're processing your submission... This could take a few seconds.