Summary

8db88b8ba2d529b8_data.exe

File 8db88b8ba2d529b8_data.exe

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 634a2057e8fb3ffa6a8329580ee2fe69
SHA1 2b648a462a6c10a78222fc87d3e5d38e1203b1a6
SHA256 8db88b8ba2d529b84871a6d7f8a53d90ecb04b4a839b1415a8da69e261bb7288
SHA512
52c4b53e0178481fc3f1a872e9d6701261a8deda65a58c5a6132afdc1d71b32d0472e8d12dc81db4935e207294abe448d0ae80b83e63723922c5bfc8750bca24
CRC32 0382A8DF
ssdeep None
Yara
  • UPX - (no description)
  • 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:6705116

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 18, 2025, 3:34 p.m. July 18, 2025, 3:41 p.m. 400 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-14 13:13:37,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpl4240h
2025-07-14 13:13:37,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\jRrtHfSFllaKXWgiIXTyuzhNeSeK
2025-07-14 13:13:37,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\qJfqAlHsIVchSPnK
2025-07-14 13:13:37,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-14 13:13:37,046 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-14 13:13:37,421 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-14 13:13:37,421 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-14 13:13:37,875 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-14 13:13:38,078 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-07-14 13:13:38,078 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-14 13:13:38,078 [analyzer] DEBUG: Started auxiliary module Human
2025-07-14 13:13:38,078 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-14 13:13:38,078 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-14 13:13:38,140 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-14 13:13:38,140 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-14 13:13:38,140 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-14 13:13:38,140 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-14 13:13:38,312 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\8db88b8ba2d529b8_data.exe' with arguments '' and pid 844
2025-07-14 13:13:38,500 [analyzer] DEBUG: Loaded monitor into process with pid 844
2025-07-14 13:13:38,578 [analyzer] INFO: Added new file to list with pid 844 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-14 13:13:38,592 [analyzer] INFO: Added new file to list with pid 844 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-14 13:13:38,655 [analyzer] INFO: Injected into process with pid 2852 and name ''
2025-07-14 13:13:38,796 [analyzer] DEBUG: Loaded monitor into process with pid 2852
2025-07-14 13:13:38,875 [analyzer] INFO: Added new file to list with pid 844 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-14 13:13:38,967 [analyzer] INFO: Added new file to list with pid 844 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-14 13:13:39,842 [analyzer] INFO: Added new file to list with pid 2852 and path C:\backup.exe
2025-07-14 13:16:57,312 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-14 13:16:58,483 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-14 13:16:58,483 [lib.api.process] INFO: Successfully terminated process with pid 844.
2025-07-14 13:16:58,483 [lib.api.process] INFO: Successfully terminated process with pid 2852.
2025-07-14 13:16:58,500 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-18 15:34:33,561 [cuckoo.core.scheduler] INFO: Task #6732401: acquired machine win7x649 (label=win7x649)
2025-07-18 15:34:33,563 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.209 for task #6732401
2025-07-18 15:34:33,884 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 2776378 (interface=vboxnet0, host=192.168.168.209)
2025-07-18 15:34:33,988 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x649
2025-07-18 15:34:35,181 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x649 to vmcloak
2025-07-18 15:35:22,297 [cuckoo.core.guest] INFO: Starting analysis #6732401 on guest (id=win7x649, ip=192.168.168.209)
2025-07-18 15:35:23,302 [cuckoo.core.guest] DEBUG: win7x649: not ready yet
2025-07-18 15:35:28,329 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x649, ip=192.168.168.209)
2025-07-18 15:35:28,429 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x649, ip=192.168.168.209, monitor=latest, size=6660546)
2025-07-18 15:35:29,844 [cuckoo.core.resultserver] DEBUG: Task #6732401: live log analysis.log initialized.
2025-07-18 15:35:30,879 [cuckoo.core.resultserver] DEBUG: Task #6732401 is sending a BSON stream
2025-07-18 15:35:31,284 [cuckoo.core.resultserver] DEBUG: Task #6732401 is sending a BSON stream
2025-07-18 15:35:31,597 [cuckoo.core.resultserver] DEBUG: Task #6732401 is sending a BSON stream
2025-07-18 15:35:32,139 [cuckoo.core.resultserver] DEBUG: Task #6732401: File upload for 'shots/0001.jpg'
2025-07-18 15:35:32,168 [cuckoo.core.resultserver] DEBUG: Task #6732401 uploaded file length: 133450
2025-07-18 15:35:44,541 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:35:59,918 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:36:15,230 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:36:30,538 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:36:45,841 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:37:01,040 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:37:16,259 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:37:31,405 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:37:46,637 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:38:01,772 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:38:16,871 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:38:32,001 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:38:47,108 [cuckoo.core.guest] DEBUG: win7x649: analysis #6732401 still processing
2025-07-18 15:38:50,399 [cuckoo.core.resultserver] DEBUG: Task #6732401: File upload for 'curtain/1752491817.48.curtain.log'
2025-07-18 15:38:50,401 [cuckoo.core.resultserver] DEBUG: Task #6732401 uploaded file length: 36
2025-07-18 15:38:51,099 [cuckoo.core.resultserver] DEBUG: Task #6732401: File upload for 'sysmon/1752491818.2.sysmon.xml'
2025-07-18 15:38:51,347 [cuckoo.core.resultserver] DEBUG: Task #6732401 uploaded file length: 10447530
2025-07-18 15:38:51,395 [cuckoo.core.resultserver] DEBUG: Task #6732401 had connection reset for <Context for LOG>
2025-07-18 15:38:51,398 [cuckoo.core.resultserver] DEBUG: Task #6732401: File upload for 'files/b2810846fcfbc56a_backup.exe'
2025-07-18 15:38:51,401 [cuckoo.core.resultserver] DEBUG: Task #6732401: File upload for 'files/0356c3b56a196ba3_backup.exe'
2025-07-18 15:38:51,403 [cuckoo.core.resultserver] DEBUG: Task #6732401 uploaded file length: 90330
2025-07-18 15:38:51,404 [cuckoo.core.resultserver] DEBUG: Task #6732401 uploaded file length: 90328
2025-07-18 15:38:53,137 [cuckoo.core.guest] INFO: win7x649: analysis completed successfully
2025-07-18 15:38:53,152 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-18 15:38:53,176 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-18 15:38:54,203 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x649 to path /srv/cuckoo/cwd/storage/analyses/6732401/memory.dmp
2025-07-18 15:38:54,205 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x649
2025-07-18 15:41:13,030 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.209 for task #6732401
2025-07-18 15:41:13,493 [cuckoo.core.scheduler] DEBUG: Released database task #6732401
2025-07-18 15:41:13,509 [cuckoo.core.scheduler] INFO: Task #6732401: analysis procedure completed

Signatures

Yara rules detected for file (2 events)
description (no description) rule UPX
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:\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: 844
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003e0000
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'UPX1', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.392405063291 description Overall entropy of this PE file is high
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.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
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.