Summary

3c0400247d6bf95850aba0dfad6e2b8bca65afafa0c33547466913007e8d4c36

File 3c0400247d6bf95850aba0dfad6e2b8bca65afafa0c33547466913007e8d4c36

Summary
Download Resubmit sample

Size 172.5KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 37c720f11b2aa21a25a533b0e017f0db
SHA1 377e75734088e491a4d53c42b54eac4ccce4b7fe
SHA256 3c0400247d6bf95850aba0dfad6e2b8bca65afafa0c33547466913007e8d4c36
SHA512
1c15616f2af2f7c4c64727e28ebccab66f69cca4ab52f3cb46d9bd2f203c8d5e5f454eca6720bcf8d820d182eafe463a9b66fa4d5d8d50172019b3df4d27b304
CRC32 30CCF396
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

6729868

6729869

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 14, 2025, 4:57 a.m. July 14, 2025, 5:03 a.m. 379 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-09 05:53:27,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpl4240h
2025-07-09 05:53:27,030 [analyzer] DEBUG: Pipe server name: \??\PIPE\TRNTqKmxdNzKoeuIYfUHGAVJm
2025-07-09 05:53:27,030 [analyzer] DEBUG: Log pipe server name: \??\PIPE\DvtjOQNuwcaBZcsoHeCNSVAoYGPo
2025-07-09 05:53:27,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-09 05:53:27,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-09 05:53:27,796 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-09 05:53:28,000 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-07-09 05:53:28,000 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-09 05:53:28,000 [analyzer] DEBUG: Started auxiliary module Human
2025-07-09 05:53:28,000 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-09 05:53:28,000 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-09 05:53:28,046 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-09 05:53:28,062 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-09 05:53:28,062 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-09 05:53:28,062 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-09 05:53:28,203 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\3c0400247d6bf95850aba0dfad6e2b8bca65afafa0c33547466913007e8d4c36.exe' with arguments '' and pid 1352
2025-07-09 05:53:28,390 [analyzer] DEBUG: Loaded monitor into process with pid 1352
2025-07-09 05:53:28,437 [analyzer] INFO: Added new file to list with pid 1352 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-09 05:53:28,453 [analyzer] INFO: Added new file to list with pid 1352 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-09 05:53:28,515 [analyzer] INFO: Injected into process with pid 544 and name ''
2025-07-09 05:53:28,687 [analyzer] DEBUG: Loaded monitor into process with pid 544
2025-07-09 05:53:28,765 [analyzer] INFO: Added new file to list with pid 1352 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-09 05:53:28,842 [analyzer] INFO: Added new file to list with pid 1352 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-09 05:53:29,733 [analyzer] INFO: Added new file to list with pid 544 and path C:\backup.exe
2025-07-09 05:53:57,203 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-09 05:53:57,655 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-09 05:53:57,655 [lib.api.process] INFO: Successfully terminated process with pid 1352.
2025-07-09 05:53:57,655 [lib.api.process] INFO: Successfully terminated process with pid 544.
2025-07-09 05:53:57,687 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-14 04:57:19,238 [cuckoo.core.scheduler] INFO: Task #6702919: acquired machine win7x649 (label=win7x649)
2025-07-14 04:57:19,243 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.209 for task #6702919
2025-07-14 04:57:19,619 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 972951 (interface=vboxnet0, host=192.168.168.209)
2025-07-14 04:57:19,746 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x649
2025-07-14 04:57:20,709 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x649 to vmcloak
2025-07-14 05:00:32,987 [cuckoo.core.guest] INFO: Starting analysis #6702919 on guest (id=win7x649, ip=192.168.168.209)
2025-07-14 05:00:33,994 [cuckoo.core.guest] DEBUG: win7x649: not ready yet
2025-07-14 05:00:39,162 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x649, ip=192.168.168.209)
2025-07-14 05:00:39,247 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x649, ip=192.168.168.209, monitor=latest, size=6660546)
2025-07-14 05:00:40,563 [cuckoo.core.resultserver] DEBUG: Task #6702919: live log analysis.log initialized.
2025-07-14 05:00:41,555 [cuckoo.core.resultserver] DEBUG: Task #6702919 is sending a BSON stream
2025-07-14 05:00:41,929 [cuckoo.core.resultserver] DEBUG: Task #6702919 is sending a BSON stream
2025-07-14 05:00:42,225 [cuckoo.core.resultserver] DEBUG: Task #6702919 is sending a BSON stream
2025-07-14 05:00:42,776 [cuckoo.core.resultserver] DEBUG: Task #6702919: File upload for 'shots/0001.jpg'
2025-07-14 05:00:42,789 [cuckoo.core.resultserver] DEBUG: Task #6702919 uploaded file length: 133438
2025-07-14 05:00:55,214 [cuckoo.core.guest] DEBUG: win7x649: analysis #6702919 still processing
2025-07-14 05:01:10,309 [cuckoo.core.guest] DEBUG: win7x649: analysis #6702919 still processing
2025-07-14 05:01:11,005 [cuckoo.core.resultserver] DEBUG: Task #6702919: File upload for 'curtain/1752033237.38.curtain.log'
2025-07-14 05:01:11,008 [cuckoo.core.resultserver] DEBUG: Task #6702919 uploaded file length: 36
2025-07-14 05:01:11,235 [cuckoo.core.resultserver] DEBUG: Task #6702919: File upload for 'sysmon/1752033237.61.sysmon.xml'
2025-07-14 05:01:11,271 [cuckoo.core.resultserver] DEBUG: Task #6702919 uploaded file length: 2359544
2025-07-14 05:01:11,296 [cuckoo.core.resultserver] DEBUG: Task #6702919: File upload for 'files/ac33ea9ad9388571_backup.exe'
2025-07-14 05:01:11,300 [cuckoo.core.resultserver] DEBUG: Task #6702919 uploaded file length: 176639
2025-07-14 05:01:11,302 [cuckoo.core.resultserver] DEBUG: Task #6702919: File upload for 'files/645028c193bd4908_backup.exe'
2025-07-14 05:01:11,305 [cuckoo.core.resultserver] DEBUG: Task #6702919 uploaded file length: 176641
2025-07-14 05:01:11,330 [cuckoo.core.resultserver] DEBUG: Task #6702919 had connection reset for <Context for LOG>
2025-07-14 05:01:13,318 [cuckoo.core.guest] INFO: win7x649: analysis completed successfully
2025-07-14 05:01:13,327 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-14 05:01:13,345 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-14 05:01:14,733 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x649 to path /srv/cuckoo/cwd/storage/analyses/6702919/memory.dmp
2025-07-14 05:01:14,751 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x649
2025-07-14 05:03:36,848 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.209 for task #6702919
2025-07-14 05:03:37,534 [cuckoo.core.scheduler] DEBUG: Released database task #6702919
2025-07-14 05:03:37,557 [cuckoo.core.scheduler] INFO: Task #6702919: 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: 1352
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x01bf0000
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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