Summary

dad26f38bc8b6fad_backup.exe

File dad26f38bc8b6fad_backup.exe

Summary
Download Resubmit sample

Size 89.5KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 bebcedfd0ec1e067ef21be6f63755cce
SHA1 e1cc0bbf0279400f3842ef8fe5f25b9f2906b7da
SHA256 dad26f38bc8b6fad3d4269878b06ba27a2524632c7e61180afd707ed3ca8773b
SHA512
d334ddb4f3309f644c64b1361bee6571ddce4a19a31e107753e9c97bde433a96ce365df3adaafa12c9d467ead2967b65d794e3f342a579722c9ad9ff99c405e0
CRC32 0535ECB9
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:6687012

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 16, 2025, 6:14 p.m. July 16, 2025, 6:18 p.m. 242 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-11 18:09:06,000 [analyzer] DEBUG: Starting analyzer from: C:\tmp4nivwu
2025-07-11 18:09:06,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\XzHWNGUdiNwSfNNGTgljZXBOoAVvyIBy
2025-07-11 18:09:06,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\QoExWDmoooPhhOeQSafsaNhbpEv
2025-07-11 18:09:06,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-11 18:09:06,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-11 18:09:06,328 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-11 18:09:06,328 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-11 18:09:06,812 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-11 18:09:07,015 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-07-11 18:09:07,015 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-11 18:09:07,015 [analyzer] DEBUG: Started auxiliary module Human
2025-07-11 18:09:07,015 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-11 18:09:07,030 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-11 18:09:07,125 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-11 18:09:07,125 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-11 18:09:07,125 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-11 18:09:07,125 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-11 18:09:07,296 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\dad26f38bc8b6fad_backup.exe' with arguments '' and pid 1468
2025-07-11 18:09:07,515 [analyzer] DEBUG: Loaded monitor into process with pid 1468
2025-07-11 18:09:07,592 [analyzer] INFO: Added new file to list with pid 1468 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-11 18:09:07,608 [analyzer] INFO: Added new file to list with pid 1468 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-11 18:09:07,703 [analyzer] INFO: Injected into process with pid 544 and name ''
2025-07-11 18:09:07,890 [analyzer] DEBUG: Loaded monitor into process with pid 544
2025-07-11 18:09:08,000 [analyzer] INFO: Added new file to list with pid 1468 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-11 18:09:08,108 [analyzer] INFO: Added new file to list with pid 1468 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-11 18:09:08,953 [analyzer] INFO: Added new file to list with pid 544 and path C:\backup.exe
2025-07-11 18:12:26,296 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-11 18:12:27,687 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-11 18:12:27,703 [lib.api.process] INFO: Successfully terminated process with pid 1468.
2025-07-11 18:12:27,703 [lib.api.process] INFO: Successfully terminated process with pid 544.
2025-07-11 18:12:27,733 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-16 18:14:53,535 [cuckoo.core.scheduler] INFO: Task #6720730: acquired machine win7x6424 (label=win7x6424)
2025-07-16 18:14:53,536 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.224 for task #6720730
2025-07-16 18:14:54,087 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 2674507 (interface=vboxnet0, host=192.168.168.224)
2025-07-16 18:14:54,206 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6424
2025-07-16 18:14:55,505 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6424 to vmcloak
2025-07-16 18:15:07,002 [cuckoo.core.guest] INFO: Starting analysis #6720730 on guest (id=win7x6424, ip=192.168.168.224)
2025-07-16 18:15:08,010 [cuckoo.core.guest] DEBUG: win7x6424: not ready yet
2025-07-16 18:15:13,041 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6424, ip=192.168.168.224)
2025-07-16 18:15:13,151 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6424, ip=192.168.168.224, monitor=latest, size=6660546)
2025-07-16 18:15:14,511 [cuckoo.core.resultserver] DEBUG: Task #6720730: live log analysis.log initialized.
2025-07-16 18:15:15,478 [cuckoo.core.resultserver] DEBUG: Task #6720730 is sending a BSON stream
2025-07-16 18:15:15,962 [cuckoo.core.resultserver] DEBUG: Task #6720730 is sending a BSON stream
2025-07-16 18:15:16,337 [cuckoo.core.resultserver] DEBUG: Task #6720730 is sending a BSON stream
2025-07-16 18:15:16,775 [cuckoo.core.resultserver] DEBUG: Task #6720730: File upload for 'shots/0001.jpg'
2025-07-16 18:15:16,793 [cuckoo.core.resultserver] DEBUG: Task #6720730 uploaded file length: 133462
2025-07-16 18:15:29,228 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:15:44,322 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:15:59,660 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:16:14,870 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:16:30,175 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:16:45,388 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:17:00,545 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:17:15,682 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:17:30,828 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:17:46,174 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:18:01,308 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:18:16,481 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:18:31,629 [cuckoo.core.guest] DEBUG: win7x6424: analysis #6720730 still processing
2025-07-16 18:18:35,147 [cuckoo.core.resultserver] DEBUG: Task #6720730: File upload for 'curtain/1752250346.61.curtain.log'
2025-07-16 18:18:35,149 [cuckoo.core.resultserver] DEBUG: Task #6720730 uploaded file length: 36
2025-07-16 18:18:36,124 [cuckoo.core.resultserver] DEBUG: Task #6720730: File upload for 'sysmon/1752250347.42.sysmon.xml'
2025-07-16 18:18:36,224 [cuckoo.core.resultserver] DEBUG: Task #6720730 uploaded file length: 6499974
2025-07-16 18:18:36,238 [cuckoo.core.resultserver] DEBUG: Task #6720730: File upload for 'files/1d4f70267f0132d8_backup.exe'
2025-07-16 18:18:36,243 [cuckoo.core.resultserver] DEBUG: Task #6720730 uploaded file length: 91638
2025-07-16 18:18:36,245 [cuckoo.core.resultserver] DEBUG: Task #6720730: File upload for 'files/8f371b398c547b26_backup.exe'
2025-07-16 18:18:36,248 [cuckoo.core.resultserver] DEBUG: Task #6720730 uploaded file length: 91640
2025-07-16 18:18:36,252 [cuckoo.core.resultserver] DEBUG: Task #6720730: File upload for 'files/61fb0e75e4f29248_backup.exe'
2025-07-16 18:18:36,255 [cuckoo.core.resultserver] DEBUG: Task #6720730 uploaded file length: 91638
2025-07-16 18:18:36,291 [cuckoo.core.resultserver] DEBUG: Task #6720730 had connection reset for <Context for LOG>
2025-07-16 18:18:37,840 [cuckoo.core.guest] INFO: win7x6424: analysis completed successfully
2025-07-16 18:18:37,868 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-16 18:18:37,902 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-16 18:18:39,666 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6424 to path /srv/cuckoo/cwd/storage/analyses/6720730/memory.dmp
2025-07-16 18:18:39,673 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6424
2025-07-16 18:18:55,171 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.224 for task #6720730
2025-07-16 18:18:55,601 [cuckoo.core.scheduler] DEBUG: Released database task #6720730
2025-07-16 18:18:55,627 [cuckoo.core.scheduler] INFO: Task #6720730: 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:\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: 1468
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

We're processing your submission... This could take a few seconds.