MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Vidar


Vendor detections: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec
SHA3-384 hash: 8401f0a6c790f47ffbf3a2bb216db95ad1b3668b15cb0f0d7acf79c3173a978eddd5c41cc88a931a7d155aa8290b25c6
SHA1 hash: 2fbf7ce068b2f36aa3a5c62ebdcaaa08cbd628e7
MD5 hash: 3f84b02973ea8bcd581a13c1d232f97d
humanhash: connecticut-lima-oxygen-may
File name:3f84b02973ea8bcd581a13c1d232f97d.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:798'720 bytes
First seen:2023-09-03 07:25:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 86ad0e3d91ec35fd419d3de1888ddee4 (7 x Smoke Loader, 5 x Vidar, 2 x RedLineStealer)
ssdeep 12288:W+TJZC834+T78QugR6Ql1e6vrAl5LeUzh05lfCo4by:W+T9o+k9i7tvrAl5LxM74by
Threatray 2'325 similar samples on MalwareBazaar
TLSH T12D05018361E0BC79E52543718F1EF6EC371EF8609D24AF5A27446E2A1970E72C9DB342
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
16.0% (.EXE) Win32 Executable (generic) (4505/5/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 0008082804020400 (1 x Vidar)
Reporter abuse_ch
Tags:exe vidar

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
3f84b02973ea8bcd581a13c1d232f97d.exe
Verdict:
Malicious activity
Analysis date:
2023-09-03 07:54:25 UTC
Tags:
ransomware stop loader stealer vidar trojan arkei raccoonclipper
Link:
https://app.any.run/tasks/61f5dba5-0cd9-40a4-b975-1f0352f0d7b4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/445817/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bd9f88c9-955e-449c-a3c2-aed1b1eec40b
Result
Threat name:
Babuk, Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1302323
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Writes a notice file (html or txt) to demand a ransom
Yara detected Babuk Ransomware
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1302323 Sample: 9179wFQMj8.exe Startdate: 03/09/2023 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 7 other signatures 2->60 8 9179wFQMj8.exe 2->8         started        11 9179wFQMj8.exe 2->11         started        13 9179wFQMj8.exe 2->13         started        15 9179wFQMj8.exe 2->15         started        process3 signatures4 64 Multi AV Scanner detection for dropped file 8->64 66 Detected unpacking (changes PE section rights) 8->66 68 Detected unpacking (overwrites its own PE header) 8->68 72 2 other signatures 8->72 17 9179wFQMj8.exe 18 8->17         started        70 Injects a PE file into a foreign processes 11->70 22 9179wFQMj8.exe 1 16 11->22         started        24 9179wFQMj8.exe 12 13->24         started        26 9179wFQMj8.exe 12 15->26         started        process5 dnsIp6 46 zexeq.com 190.135.94.128, 49759, 80 AdministracionNacionaldeTelecomunicacionesUY Uruguay 17->46 48 192.168.2.1 unknown unknown 17->48 36 C:\Users\user\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\Desktop\...behaviorgraphIGIYTFFYT.png, data 17->38 dropped 40 C:\Users\user\DesktopWZCVGNOWT.pdf, data 17->40 dropped 44 4 other malicious files 17->44 dropped 62 Modifies existing user documents (likely ransomware behavior) 17->62 50 api.2ip.ua 162.0.217.254, 443, 49722, 49733 ACPCA Canada 22->50 42 C:\Users\user\AppData\...\9179wFQMj8.exe, PE32 22->42 dropped 28 9179wFQMj8.exe 22->28         started        31 icacls.exe 22->31         started        file7 signatures8 process9 signatures10 74 Injects a PE file into a foreign processes 28->74 33 9179wFQMj8.exe 12 28->33         started        process11 dnsIp12 52 api.2ip.ua 33->52
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2023-09-03 07:26:06 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6nevl3tozy2buxzdiktlujdtjdhc3uciy2hq6yisviatgsco7wa._file
Verdict:
malicious
Similar samples:
02be50acb754a09f75b3b1b6b4b8dd8609c6d297ccd89a1705bd8446149f6712
Vidar
188c586ed738a6e28416cf49bb17d5a66ac19f767e095b959ca84ef900d22735
Vidar
201857a59c6dadb4803a329dac1ba8a5d46cfff6eddb9c80edb670cdfd8481a7
Vidar
2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7
Vidar
455c0c72d434406bcf575d3957ad7f22f714eee597d8bdee6eacc02cbef1dd2a
Vidar
59c3ef0b04f7f8f424ec18d68e886610f886467d9c814e2a3c10378588139967
Vidar
70856a13672513d4828d2ca74d2f27d4c6239908e8aa303e1ef9536f6e113fcd
Vidar
c9bfdf471598a56a2c2f8e7ae923c4f05310c919ef4b808276e4a4d4c771dad9
Vidar
e1fb8f0d455779ea3c3b03f0aa6b0e9377ae17cf421d0d4f8f762db09b8a37ab
Vidar
ed91448d62d44af828d9f560c1f7648280f256eb388c20157607d948bd3cc4ed
Vidar
+ 2'315 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:25f5344bfcb62e75b7946c3a681aec54 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230903-h82fesge4x/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://zexeq.com/test1/get.php
https://t.me/vogogor
https://steamcommunity.com/profiles/76561199545993403
Unpacked files
SH256 hash:
7b7004095eb8b76a11b8ee065e812f4266988139f9899e35f0e9b91b7e9717f8
MD5 hash:
5ed2e91049c06bb55099af9f75438dbf
SHA1 hash:
e7da4ee71712a231eaacb0d1686cc72a59dc5123
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/84e02a9a-26dc-4c28-a8ea-514b52a814bf/
Parent samples :
879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec
54b99c968e338c0fc176a30a1f5ea89c85f6ce62f5c7a2f026b3e948be5e7670
b06070443b0693394daced912c6e92a4123c9a47e0e5fd96d4fc345ece746e91
e9cab40c5d4b4c87d645aedc97f892c892fad49aa23f2dd4507e1ce59e827885
SH256 hash:
879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec
MD5 hash:
3f84b02973ea8bcd581a13c1d232f97d
SHA1 hash:
2fbf7ce068b2f36aa3a5c62ebdcaaa08cbd628e7
Link:
https://www.unpac.me/results/84e02a9a-26dc-4c28-a8ea-514b52a814bf/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/879a4aaf7376/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Vidar

Executable exe 879a4aaf737671a0d2f91a1535d1239a46716e824634787b089550099a4277ec

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2615181/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/445817/

Comments