Summary

a0bbe7a1d2e3c9bf_backup.exe

File a0bbe7a1d2e3c9bf_backup.exe

Summary
Download Resubmit sample

Size 172.5KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 75958628673542b94ebaa5d95f846c80
SHA1 572478e7a7973ed3493df6417c3e8ccc0dfead8b
SHA256 a0bbe7a1d2e3c9bf9b9a60d7deda9c82be49f431220cd91d5d836689d0170f7c
SHA512
dab9c7c0b184bd383eb8e8cdc87b217f075e4293fdf32e3cfd75ccad45803f5441d3ffab889f0254aa584d1893ababea4acfc9ab558cd1d18b67b07aefdbeb8f
CRC32 EF019D13
ssdeep None
Yara
  • 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:6684555

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 16, 2025, 3:01 p.m. July 16, 2025, 3:09 p.m. 426 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-11 08:41:49,015 [analyzer] DEBUG: Starting analyzer from: C:\tmp2zg5xi
2025-07-11 08:41:49,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\CDtEUEUXfAmRXHNlPhZsGNJm
2025-07-11 08:41:49,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\AWvhxMkFyZPpLAjEzjrPx
2025-07-11 08:41:49,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-11 08:41:49,030 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-11 08:41:49,453 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-11 08:41:49,453 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-11 08:41:50,015 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-11 08:41:50,217 [analyzer] DEBUG: Loaded monitor into process with pid 512
2025-07-11 08:41:50,217 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-11 08:41:50,217 [analyzer] DEBUG: Started auxiliary module Human
2025-07-11 08:41:50,217 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-11 08:41:50,217 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-11 08:41:50,328 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-11 08:41:50,328 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-11 08:41:50,328 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-11 08:41:50,328 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-11 08:41:50,483 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\a0bbe7a1d2e3c9bf_backup.exe' with arguments '' and pid 940
2025-07-11 08:41:50,687 [analyzer] DEBUG: Loaded monitor into process with pid 940
2025-07-11 08:41:50,765 [analyzer] INFO: Added new file to list with pid 940 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-11 08:41:50,780 [analyzer] INFO: Added new file to list with pid 940 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\System Restore.exe
2025-07-11 08:41:50,858 [analyzer] INFO: Injected into process with pid 1916 and name ''
2025-07-11 08:41:51,030 [analyzer] DEBUG: Loaded monitor into process with pid 1916
2025-07-11 08:41:51,108 [analyzer] INFO: Added new file to list with pid 940 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-11 08:41:51,203 [analyzer] INFO: Added new file to list with pid 940 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-11 08:41:52,078 [analyzer] INFO: Added new file to list with pid 1916 and path C:\backup.exe
2025-07-11 08:45:09,500 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-11 08:45:10,483 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-11 08:45:10,483 [lib.api.process] INFO: Successfully terminated process with pid 940.
2025-07-11 08:45:10,483 [lib.api.process] INFO: Successfully terminated process with pid 1916.
2025-07-11 08:45:10,500 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-16 15:01:57,303 [cuckoo.core.scheduler] INFO: Task #6719478: acquired machine win7x6410 (label=win7x6410)
2025-07-16 15:01:57,304 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.210 for task #6719478
2025-07-16 15:01:57,918 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 2383397 (interface=vboxnet0, host=192.168.168.210)
2025-07-16 15:01:58,092 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6410
2025-07-16 15:01:59,287 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6410 to vmcloak
2025-07-16 15:03:53,801 [cuckoo.core.guest] INFO: Starting analysis #6719478 on guest (id=win7x6410, ip=192.168.168.210)
2025-07-16 15:03:54,811 [cuckoo.core.guest] DEBUG: win7x6410: not ready yet
2025-07-16 15:03:59,860 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6410, ip=192.168.168.210)
2025-07-16 15:03:59,984 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6410, ip=192.168.168.210, monitor=latest, size=6660546)
2025-07-16 15:04:01,902 [cuckoo.core.resultserver] DEBUG: Task #6719478: live log analysis.log initialized.
2025-07-16 15:04:02,834 [cuckoo.core.resultserver] DEBUG: Task #6719478 is sending a BSON stream
2025-07-16 15:04:03,286 [cuckoo.core.resultserver] DEBUG: Task #6719478 is sending a BSON stream
2025-07-16 15:04:03,697 [cuckoo.core.resultserver] DEBUG: Task #6719478 is sending a BSON stream
2025-07-16 15:04:04,236 [cuckoo.core.resultserver] DEBUG: Task #6719478: File upload for 'shots/0001.jpg'
2025-07-16 15:04:04,282 [cuckoo.core.resultserver] DEBUG: Task #6719478 uploaded file length: 133448
2025-07-16 15:04:16,370 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:04:31,757 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:04:47,238 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:05:02,398 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:05:17,840 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:05:33,121 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:05:48,207 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:06:03,288 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:06:18,564 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:06:33,680 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:06:48,778 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:07:03,932 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:07:19,474 [cuckoo.core.guest] DEBUG: win7x6410: analysis #6719478 still processing
2025-07-16 15:07:22,347 [cuckoo.core.resultserver] DEBUG: Task #6719478: File upload for 'curtain/1752216309.66.curtain.log'
2025-07-16 15:07:22,350 [cuckoo.core.resultserver] DEBUG: Task #6719478 uploaded file length: 36
2025-07-16 15:07:23,076 [cuckoo.core.resultserver] DEBUG: Task #6719478: File upload for 'sysmon/1752216310.39.sysmon.xml'
2025-07-16 15:07:23,167 [cuckoo.core.resultserver] DEBUG: Task #6719478 uploaded file length: 11460606
2025-07-16 15:07:23,193 [cuckoo.core.resultserver] DEBUG: Task #6719478: File upload for 'files/5a29b425ed910fe3_system restore.exe'
2025-07-16 15:07:23,195 [cuckoo.core.resultserver] DEBUG: Task #6719478: File upload for 'files/8c99c950fa8081ef_backup.exe'
2025-07-16 15:07:23,197 [cuckoo.core.resultserver] DEBUG: Task #6719478: File upload for 'files/8cb74edeefcc4508_backup.exe'
2025-07-16 15:07:23,200 [cuckoo.core.resultserver] DEBUG: Task #6719478 uploaded file length: 176649
2025-07-16 15:07:23,201 [cuckoo.core.resultserver] DEBUG: Task #6719478 uploaded file length: 176647
2025-07-16 15:07:23,204 [cuckoo.core.resultserver] DEBUG: Task #6719478 uploaded file length: 176647
2025-07-16 15:07:23,206 [cuckoo.core.resultserver] DEBUG: Task #6719478 had connection reset for <Context for LOG>
2025-07-16 15:07:25,501 [cuckoo.core.guest] INFO: win7x6410: analysis completed successfully
2025-07-16 15:07:25,512 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-16 15:07:25,531 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-16 15:07:26,850 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6410 to path /srv/cuckoo/cwd/storage/analyses/6719478/memory.dmp
2025-07-16 15:07:26,851 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6410
2025-07-16 15:09:03,384 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.210 for task #6719478
2025-07-16 15:09:03,950 [cuckoo.core.scheduler] DEBUG: Released database task #6719478
2025-07-16 15:09:03,969 [cuckoo.core.scheduler] INFO: Task #6719478: analysis procedure completed

Signatures

Yara rules detected for file (6 events)
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\System Restore.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\System Restore.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: 940
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003b0000
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/Crypt.ULPM.Gen
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

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