MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87
SHA3-384 hash: b1031b9679278ab3ccc40dde71905ad275f9af9cd31104774d2c5fc8c4591c326bcbf27d5b7fda44cfea3c57a147757d
SHA1 hash: e6cce88f1b317e0a64fe52c553e52afcb14fec5f
MD5 hash: f6396396db37a21511b9a79d8ecec405
humanhash: mexico-freddie-ten-salami
File name:f6396396db37a21511b9a79d8ecec405.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:905'728 bytes
First seen:2023-09-01 20:22:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash eb568a174db8395072c750a957035097 (3 x Smoke Loader, 1 x RedLineStealer, 1 x Tofsee)
ssdeep 12288:iCENZyya/upCiJQ8J3J6xHhp+u9TtOK4GgVZzdcgZCvMJnRbp0Ugo9kg3TqgLUeT:oG4CiJQc3JqpT9TIKIdt103g3GgLHL/
Threatray 1'270 similar samples on MalwareBazaar
TLSH T1D2159D0382D17D99EA254B728F1FCAFC770EF560DE09BF6522989E2B04B1076C263756
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 0020c09010141000 (1 x Tofsee, 1 x Vidar)
Reporter abuse_ch
Tags:exe vidar

Intelligence

File Origin
# of uploads :
1
# of downloads :
318
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
f6396396db37a21511b9a79d8ecec405.exe
Verdict:
Malicious activity
Analysis date:
2023-09-01 20:32:08 UTC
Tags:
ransomware stop stealer vidar trojan arkei loader raccoonclipper
Link:
https://app.any.run/tasks/ed4e13a2-141c-4adb-83a2-bc99caf63f83

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/445700/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/64f2482ae29c52e38dc6a11d/reports/16a93881-ebe0-4aba-8e07-0e2668a9e21a/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87
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/52d73d3e-c482-43a6-ac59-d13b317aece3
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1301932
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
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1301932 Sample: jmQw4k7hlS.exe Startdate: 01/09/2023 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 4 other signatures 2->47 8 jmQw4k7hlS.exe 2->8         started        11 jmQw4k7hlS.exe 2->11         started        13 jmQw4k7hlS.exe 2->13         started        15 jmQw4k7hlS.exe 2->15         started        process3 signatures4 49 Detected unpacking (changes PE section rights) 8->49 51 Detected unpacking (overwrites its own PE header) 8->51 17 jmQw4k7hlS.exe 1 17 8->17         started        53 Multi AV Scanner detection for dropped file 11->53 55 Machine Learning detection for dropped file 11->55 57 Injects a PE file into a foreign processes 13->57 21 jmQw4k7hlS.exe 13 13->21         started        23 jmQw4k7hlS.exe 13 15->23         started        process5 dnsIp6 35 api.2ip.ua 162.0.217.254, 443, 49728, 49729 ACPCA Canada 17->35 37 192.168.2.1 unknown unknown 17->37 33 C:\Users\user\AppData\...\jmQw4k7hlS.exe, PE32 17->33 dropped 25 jmQw4k7hlS.exe 17->25         started        28 icacls.exe 17->28         started        file7 process8 signatures9 59 Injects a PE file into a foreign processes 25->59 30 jmQw4k7hlS.exe 13 25->30         started        process10 dnsIp11 39 api.2ip.ua 30->39
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-09-01 17:59:06 UTC
File Type:
PE (Exe)
Extracted files:
85
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=joi3tqtpkb5w2hhrduqjgmavfehtp6hrtzox4vvm67qd3uee5kdq._file
Verdict:
malicious
Similar samples:
410de93aa921085a5217266163b2e52a1ad11750788df4e90c667eab6686db30
Vidar
5725a12018636f3e9b66e5e14f539b1c79b2f70b666120badda1a85d3cd74809
Vidar
7ea06044a8fb6a5754735db9ea04cf4d0e67f3caa00ac2750b187a4e9a4295a5
Vidar
a3e06d811446215d4ccf92e136c20795d346f94c23f94caeab63d5727f35b866
Vidar
b05cb10bb35fa751db1e6b16eceb7156e4fcafc9d9baff0354e095424c3562d8
Vidar
b911c2c7924e997f1349395a95bd57bb211e7b4a67e9c98b01fb3a176b0f27a5
Vidar
cd361fa5836d2a093f1e0c4060350c4d21a0ccdf083f47ef6cea1502e3d20363
Vidar
eaf0b83166fa34e9c7aeb111f1a0aac02cd227c1506a0df15ed8e6b8302b44b0
Vidar
f30c8773a897d45c5798d6d3c1768148af13101536a2d5f6ae3dc26f25471215
Vidar
f3fad225386f7222566703f13a3df005b36736afe33c6b324cd18f0df70f973f
Vidar
+ 1'260 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/230901-y55axahe7y/
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/raud/get.php
https://t.me/vogogor
https://steamcommunity.com/profiles/76561199545993403
Unpacked files
SH256 hash:
f6c25c0e6beba298317d32938016f1b21b4cee85eeb622e73b24603f02a17bf8
MD5 hash:
40c51036095c2bd4a8230a97965cef59
SHA1 hash:
57b7c5f4e6a2a89b00c9a4e315d8e3ff531d0452
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/6abf628b-b6dc-4094-924a-8f0426b6aa1a/
Parent samples :
4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87
eabaa62f8d278372288c480bda8eed290abefb3e8e90a3af0690756dc7577cfc
3bd0e34a07b6a1e6ebd2a0dc9f8cf917d1835a7d770d41a60c83507608dd6f3d
758fbf8abfb85042aa7bbe6195b5b47f2fbc3c047e261067c776f6d2ec059f74
740f93a6369b2d97604f632de77b98a5af94bdda56296689545ea1a0b13a42e6
SH256 hash:
4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87
MD5 hash:
f6396396db37a21511b9a79d8ecec405
SHA1 hash:
e6cce88f1b317e0a64fe52c553e52afcb14fec5f
Link:
https://www.unpac.me/results/6abf628b-b6dc-4094-924a-8f0426b6aa1a/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b91b9c26f50/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/4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 4b91b9c26f507b6d1cf11d20933015290f37f8f19e5d7e56acf7e03dd084ea87

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2635570/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/445700/

Comments