Summary

6f74fd68d0eaafd2_backup.exe

File 6f74fd68d0eaafd2_backup.exe

Summary
Download Resubmit sample

Size 90.7KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 5bd770aaa565b4daf4749baafaf39696
SHA1 6dfce6cc22845ea2c04174e4bceee65275d9bde2
SHA256 6f74fd68d0eaafd20df8361216d358b24822616c1edff23d9512d4dfa527c1e7
SHA512
27f2b0898d75a5b452a5503caaca2e557ae547c1ab3a8faf263693070ea78b0684bb8669c5577104949c4ca8d96c7e491fd8ccc4d0348dbf2b734b2ccdbe17e4
CRC32 4A30AF33
ssdeep None
Yara
  • suspicious_packer_section - The packer/protector section names/keywords

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:7085544

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE Nov. 23, 2025, 2:44 a.m. Nov. 23, 2025, 2:50 a.m. 396 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-11-15 14:38:24,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpj6atou
2025-11-15 14:38:24,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\FQAogEYUiQvBCZwywqgJApiIAPmdH
2025-11-15 14:38:24,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\RYVrUslEXXXmLvPqxDNWpdh
2025-11-15 14:38:24,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-11-15 14:38:24,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-11-15 14:38:24,280 [analyzer] DEBUG: Started auxiliary module Curtain
2025-11-15 14:38:24,296 [analyzer] DEBUG: Started auxiliary module DbgView
2025-11-15 14:38:24,796 [analyzer] DEBUG: Started auxiliary module Disguise
2025-11-15 14:38:25,015 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-11-15 14:38:25,015 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-11-15 14:38:25,015 [analyzer] DEBUG: Started auxiliary module Human
2025-11-15 14:38:25,015 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-11-15 14:38:25,015 [analyzer] DEBUG: Started auxiliary module Reboot
2025-11-15 14:38:25,062 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-11-15 14:38:25,062 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-11-15 14:38:25,062 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-11-15 14:38:25,062 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-11-15 14:38:25,217 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\6f74fd68d0eaafd2_backup.exe' with arguments '' and pid 1332
2025-11-15 14:38:25,421 [analyzer] DEBUG: Loaded monitor into process with pid 1332
2025-11-15 14:38:25,515 [analyzer] INFO: Added new file to list with pid 1332 and path C:\Users\Administrator\AppData\Local\Temp\update.exe
2025-11-15 14:38:25,530 [analyzer] INFO: Added new file to list with pid 1332 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-11-15 14:38:25,592 [analyzer] INFO: Injected into process with pid 2840 and name ''
2025-11-15 14:38:25,765 [analyzer] DEBUG: Loaded monitor into process with pid 2840
2025-11-15 14:38:25,842 [analyzer] INFO: Added new file to list with pid 1332 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-11-15 14:38:25,921 [analyzer] INFO: Added new file to list with pid 1332 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-11-15 14:38:26,828 [analyzer] INFO: Added new file to list with pid 2840 and path C:\backup.exe
2025-11-15 14:41:44,217 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-11-15 14:41:45,546 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-11-15 14:41:45,546 [lib.api.process] INFO: Successfully terminated process with pid 1332.
2025-11-15 14:41:45,546 [lib.api.process] INFO: Successfully terminated process with pid 2840.
2025-11-15 14:41:45,578 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-11-23 02:44:12,957 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:13,973 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:14,991 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:16,007 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:17,024 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:18,064 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:19,086 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:20,103 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:21,120 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:22,137 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:23,162 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:24,271 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:25,292 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:26,311 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:27,341 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:28,368 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:29,396 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:30,553 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:31,587 [cuckoo.core.scheduler] DEBUG: Task #7181840: no machine available yet
2025-11-23 02:44:32,659 [cuckoo.core.scheduler] INFO: Task #7181840: acquired machine win7x6416 (label=win7x6416)
2025-11-23 02:44:32,659 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.216 for task #7181840
2025-11-23 02:44:32,887 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 3024019 (interface=vboxnet0, host=192.168.168.216)
2025-11-23 02:44:33,016 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6416
2025-11-23 02:44:34,249 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6416 to vmcloak
2025-11-23 02:46:06,361 [cuckoo.core.guest] INFO: Starting analysis #7181840 on guest (id=win7x6416, ip=192.168.168.216)
2025-11-23 02:46:07,366 [cuckoo.core.guest] DEBUG: win7x6416: not ready yet
2025-11-23 02:46:12,390 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6416, ip=192.168.168.216)
2025-11-23 02:46:12,461 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6416, ip=192.168.168.216, monitor=latest, size=6660546)
2025-11-23 02:46:13,821 [cuckoo.core.resultserver] DEBUG: Task #7181840: live log analysis.log initialized.
2025-11-23 02:46:14,788 [cuckoo.core.resultserver] DEBUG: Task #7181840 is sending a BSON stream
2025-11-23 02:46:15,175 [cuckoo.core.resultserver] DEBUG: Task #7181840 is sending a BSON stream
2025-11-23 02:46:15,518 [cuckoo.core.resultserver] DEBUG: Task #7181840 is sending a BSON stream
2025-11-23 02:46:16,004 [cuckoo.core.resultserver] DEBUG: Task #7181840: File upload for 'shots/0001.jpg'
2025-11-23 02:46:16,018 [cuckoo.core.resultserver] DEBUG: Task #7181840 uploaded file length: 133615
2025-11-23 02:46:28,705 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:46:43,823 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:46:58,982 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:47:14,062 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:47:29,178 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:47:44,291 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:47:59,449 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:48:14,585 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:48:29,680 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:48:44,955 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:49:00,123 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:49:15,279 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:49:30,403 [cuckoo.core.guest] DEBUG: win7x6416: analysis #7181840 still processing
2025-11-23 02:49:34,260 [cuckoo.core.resultserver] DEBUG: Task #7181840: File upload for 'curtain/1763214104.42.curtain.log'
2025-11-23 02:49:34,263 [cuckoo.core.resultserver] DEBUG: Task #7181840 uploaded file length: 36
2025-11-23 02:49:35,301 [cuckoo.core.resultserver] DEBUG: Task #7181840: File upload for 'sysmon/1763214105.44.sysmon.xml'
2025-11-23 02:49:35,385 [cuckoo.core.resultserver] DEBUG: Task #7181840 uploaded file length: 15235276
2025-11-23 02:49:35,412 [cuckoo.core.resultserver] DEBUG: Task #7181840: File upload for 'files/e181b85743b2c506_backup.exe'
2025-11-23 02:49:35,415 [cuckoo.core.resultserver] DEBUG: Task #7181840: File upload for 'files/3994881fca4a1ffa_backup.exe'
2025-11-23 02:49:35,416 [cuckoo.core.resultserver] DEBUG: Task #7181840 uploaded file length: 92910
2025-11-23 02:49:35,420 [cuckoo.core.resultserver] DEBUG: Task #7181840 uploaded file length: 92912
2025-11-23 02:49:35,437 [cuckoo.core.resultserver] DEBUG: Task #7181840 had connection reset for <Context for LOG>
2025-11-23 02:49:36,436 [cuckoo.core.guest] INFO: win7x6416: analysis completed successfully
2025-11-23 02:49:36,448 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-11-23 02:49:36,473 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-11-23 02:49:37,571 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6416 to path /srv/cuckoo/cwd/storage/analyses/7181840/memory.dmp
2025-11-23 02:49:37,573 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6416
2025-11-23 02:50:48,467 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.216 for task #7181840
2025-11-23 02:50:48,912 [cuckoo.core.scheduler] DEBUG: Released database task #7181840
2025-11-23 02:50:48,927 [cuckoo.core.scheduler] INFO: Task #7181840: analysis procedure completed

Signatures

Yara rule detected for file (1 event)
description The packer/protector section names/keywords rule suspicious_packer_section
Creates executable files on the filesystem (5 events)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\update.exe
file C:\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: 1332
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x01c00000
process_handle: 0xffffffff
1 0 0
The binary likely contains encrypted or compressed data indicative of a packer (2 events)
section {u'size_of_data': u'0x00003e00', u'virtual_address': u'0x00011000', u'entropy': 7.804677160000422, u'name': u'.pdata', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.260504201681 description Overall entropy of this PE file is high
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 14 AntiVirus engine on IRMA as malicious (14 events)
G Data Antivirus (Windows) Virus: Trojan.Generic.4385790 (Engine A), Win32.Trojan.Vilsel.B (Engine B)
Avast Core Security (Linux) Win32:Evo-gen [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trend Micro SProtect (Linux) WORM_VILSEL.SMB
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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