Summary

4ab34a51de83138302ae5318fe564b8212e4aae35073bb0ca14b2297c842a200

File 4ab34a51de83138302ae5318fe564b8212e4aae35073bb0ca14b2297c842a200

Summary
Download Resubmit sample

Size 92.3KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 6a579b6e943b0d5a628f023c40ca6968
SHA1 2f424b2318898ab2e00cd5ee6727a504ec64e506
SHA256 4ab34a51de83138302ae5318fe564b8212e4aae35073bb0ca14b2297c842a200
SHA512
b7fae0ab432077066c319a300cf16a34bf5c8e404dc647cb8ae6c5e54748b3fef9f877eecc59433cb0665ad44e2a36684be464fa1ead99e90354e4c068a00445
CRC32 EB85844D
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

6729906

6729907

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 14, 2025, 5:04 a.m. July 14, 2025, 5:11 a.m. 412 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-09 05:53:37,000 [analyzer] DEBUG: Starting analyzer from: C:\tmp564etj
2025-07-09 05:53:37,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\hzCmPHWroBbhwsfCi
2025-07-09 05:53:37,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\IVuylHlQpjlQZwHJTfMyvHjCSmLztV
2025-07-09 05:53:37,265 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-09 05:53:37,265 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-09 05:53:37,765 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-09 05:53:37,983 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-07-09 05:53:37,983 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-09 05:53:37,983 [analyzer] DEBUG: Started auxiliary module Human
2025-07-09 05:53:37,983 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-09 05:53:37,983 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-09 05:53:38,062 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-09 05:53:38,062 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-09 05:53:38,062 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-09 05:53:38,062 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-09 05:53:38,187 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\4ab34a51de83138302ae5318fe564b8212e4aae35073bb0ca14b2297c842a200.exe' with arguments '' and pid 2920
2025-07-09 05:53:38,375 [analyzer] DEBUG: Loaded monitor into process with pid 2920
2025-07-09 05:53:38,421 [analyzer] INFO: Added new file to list with pid 2920 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-09 05:53:38,437 [analyzer] INFO: Added new file to list with pid 2920 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-09 05:53:38,500 [analyzer] INFO: Injected into process with pid 2340 and name ''
2025-07-09 05:53:38,655 [analyzer] DEBUG: Loaded monitor into process with pid 2340
2025-07-09 05:53:38,717 [analyzer] INFO: Added new file to list with pid 2920 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-09 05:53:38,796 [analyzer] INFO: Added new file to list with pid 2920 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-09 05:53:39,687 [analyzer] INFO: Added new file to list with pid 2340 and path C:\backup.exe
2025-07-09 05:54:07,187 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-09 05:54:07,655 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-09 05:54:07,655 [lib.api.process] INFO: Successfully terminated process with pid 2920.
2025-07-09 05:54:07,655 [lib.api.process] INFO: Successfully terminated process with pid 2340.
2025-07-09 05:54:07,687 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-14 05:04:59,705 [cuckoo.core.scheduler] INFO: Task #6702952: acquired machine win7x6419 (label=win7x6419)
2025-07-14 05:04:59,706 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.219 for task #6702952
2025-07-14 05:05:00,116 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 982914 (interface=vboxnet0, host=192.168.168.219)
2025-07-14 05:05:00,294 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6419
2025-07-14 05:05:01,171 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6419 to vmcloak
2025-07-14 05:08:49,089 [cuckoo.core.guest] INFO: Starting analysis #6702952 on guest (id=win7x6419, ip=192.168.168.219)
2025-07-14 05:08:50,096 [cuckoo.core.guest] DEBUG: win7x6419: not ready yet
2025-07-14 05:08:55,119 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6419, ip=192.168.168.219)
2025-07-14 05:08:55,214 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6419, ip=192.168.168.219, monitor=latest, size=6660546)
2025-07-14 05:08:56,394 [cuckoo.core.resultserver] DEBUG: Task #6702952: live log analysis.log initialized.
2025-07-14 05:08:57,329 [cuckoo.core.resultserver] DEBUG: Task #6702952 is sending a BSON stream
2025-07-14 05:08:57,704 [cuckoo.core.resultserver] DEBUG: Task #6702952 is sending a BSON stream
2025-07-14 05:08:58,104 [cuckoo.core.resultserver] DEBUG: Task #6702952 is sending a BSON stream
2025-07-14 05:08:58,625 [cuckoo.core.resultserver] DEBUG: Task #6702952: File upload for 'shots/0001.jpg'
2025-07-14 05:08:58,648 [cuckoo.core.resultserver] DEBUG: Task #6702952 uploaded file length: 133539
2025-07-14 05:09:11,272 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6702952 still processing
2025-07-14 05:09:26,373 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6702952 still processing
2025-07-14 05:09:26,794 [cuckoo.core.resultserver] DEBUG: Task #6702952: File upload for 'curtain/1752033247.38.curtain.log'
2025-07-14 05:09:26,797 [cuckoo.core.resultserver] DEBUG: Task #6702952 uploaded file length: 36
2025-07-14 05:09:27,044 [cuckoo.core.resultserver] DEBUG: Task #6702952: File upload for 'sysmon/1752033247.62.sysmon.xml'
2025-07-14 05:09:27,075 [cuckoo.core.resultserver] DEBUG: Task #6702952 uploaded file length: 2243742
2025-07-14 05:09:27,083 [cuckoo.core.resultserver] DEBUG: Task #6702952: File upload for 'files/44a0f356759d65a2_backup.exe'
2025-07-14 05:09:27,086 [cuckoo.core.resultserver] DEBUG: Task #6702952 uploaded file length: 94492
2025-07-14 05:09:27,088 [cuckoo.core.resultserver] DEBUG: Task #6702952: File upload for 'files/537de433cdb88f14_backup.exe'
2025-07-14 05:09:27,090 [cuckoo.core.resultserver] DEBUG: Task #6702952 uploaded file length: 94494
2025-07-14 05:09:27,167 [cuckoo.core.resultserver] DEBUG: Task #6702952 had connection reset for <Context for LOG>
2025-07-14 05:09:29,412 [cuckoo.core.guest] INFO: win7x6419: analysis completed successfully
2025-07-14 05:09:29,429 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-14 05:09:29,457 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-14 05:09:31,017 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6419 to path /srv/cuckoo/cwd/storage/analyses/6702952/memory.dmp
2025-07-14 05:09:31,025 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6419
2025-07-14 05:11:51,546 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.219 for task #6702952
2025-07-14 05:11:51,957 [cuckoo.core.scheduler] DEBUG: Released database task #6702952
2025-07-14 05:11:51,986 [cuckoo.core.scheduler] INFO: Task #6702952: 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\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: 2920
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003c0000
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 14 AntiVirus engine on IRMA as malicious (14 events)
G Data Antivirus (Windows) Virus: Trojan.GenericKD.44959075 (Engine A), Win32.Trojan.Vilsel.A (Engine B)
Avast Core Security (Linux) Win32:Vilsel-CT [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/Dropper.Gen
eScan Antivirus (Linux) Trojan.GenericKD.44959075(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.GenericKD.44959075
Kaspersky Standard (Windows) Trojan.Win32.Vilsel.loy
Emsisoft Commandline Scanner (Windows) Trojan.GenericKD.44959075 (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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