MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d. 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


Stop


Vendor detections: 18


Intelligence 18 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d
SHA3-384 hash: 60a1528a5daf2bf7b950e64f4b6074541d0848d3f3c7b06ed8323eb3cada98f43e5d91344eb3a19ed1d8788e856bd353
SHA1 hash: 9eabc031f809f6afd46f12de051a6b903952db7b
MD5 hash: 2a3f36cc1fd1f55dc98fd6592cd5d80a
humanhash: missouri-winter-echo-november
File name:file.exe
Download: download sample
Signature Stop
Create hunting rule
File size:769'024 bytes
First seen:2023-06-23 00:09:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b007a513e8535ccdc15870a09f4ce9bc (2 x Stop, 1 x RecordBreaker, 1 x Stealc)
ssdeep 12288:N2hvRjVMQ6CJysXa9mWI3FNCIoJIMxO58w6FCUMWYhbJgc4v:4tVMbCJysXa9mWI3WAMxnA/fJgxv
Threatray 2'154 similar samples on MalwareBazaar
TLSH T1EEF4D053A3B27C94E525CB729E1EC6EC761EF2608F597B6E321A962F04B0072C173761
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 840220220a500200 (1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
291
Origin country :
US US
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-06-23 00:13:32 UTC
Tags:
ransomware stop loader stealer vidar trojan arkei
Link:
https://app.any.run/tasks/8346b736-2c32-4b71-bf66-4e823f1a9347

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/401766/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Сreating synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Query of malicious DNS domain
Sending a TCP request to an infection source
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/92175/overview
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
CPUID_Instruction
CheckCmdLine
EvasionGetTickCount
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6494e2db20eac5624079fcbd/reports/3ef31b09-5e8a-435a-8fd8-e17c7b46a62d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d
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/939ea54b-17b9-47f1-80fd-a21bd3c6729f
Result
Threat name:
Clipboard Hijacker, Djvu, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1260062
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 sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Uses schtasks.exe or at.exe to add and modify task schedules
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 893082 Sample: file.exe Startdate: 23/06/2023 Architecture: WINDOWS Score: 100 80 Snort IDS alert for network traffic 2->80 82 Multi AV Scanner detection for domain / URL 2->82 84 Found malware configuration 2->84 86 10 other signatures 2->86 11 file.exe 2->11         started        14 file.exe 2->14         started        16 mstsca.exe 2->16         started        process3 signatures4 100 Detected unpacking (changes PE section rights) 11->100 102 Detected unpacking (overwrites its own PE header) 11->102 104 Writes a notice file (html or txt) to demand a ransom 11->104 106 Writes many files with high entropy 11->106 18 file.exe 1 16 11->18         started        108 Injects a PE file into a foreign processes 14->108 22 file.exe 12 14->22         started        24 schtasks.exe 16->24         started        process5 dnsIp6 72 api.2ip.ua 162.0.217.254, 443, 49713, 49714 ACPCA Canada 18->72 74 192.168.2.1 unknown unknown 18->74 60 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 18->60 dropped 62 C:\Users\user\AppData\Local\...\file.exe, MS-DOS 18->62 dropped 26 file.exe 18->26         started        29 icacls.exe 18->29         started        31 conhost.exe 24->31         started        file7 process8 signatures9 98 Injects a PE file into a foreign processes 26->98 33 file.exe 1 24 26->33         started        process10 dnsIp11 66 colisumy.com 197.40.170.201, 49715, 80 TE-ASTE-ASEG Egypt 33->66 68 zexeq.com 175.119.10.231, 49716, 49718, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 33->68 70 api.2ip.ua 33->70 52 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 33->52 dropped 54 C:\_readme.txt, ASCII 33->54 dropped 56 C:\Users\user\_readme.txt, ASCII 33->56 dropped 58 279 other files (152 malicious) 33->58 dropped 88 Modifies existing user documents (likely ransomware behavior) 33->88 38 build2.exe 33->38         started        41 build3.exe 33->41         started        file12 signatures13 process14 file15 90 Detected unpacking (changes PE section rights) 38->90 92 Detected unpacking (overwrites its own PE header) 38->92 94 Injects a PE file into a foreign processes 38->94 44 build2.exe 38->44         started        64 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 41->64 dropped 96 Uses schtasks.exe or at.exe to add and modify task schedules 41->96 48 schtasks.exe 41->48         started        signatures16 process17 dnsIp18 76 t.me 149.154.167.99, 443, 49719 TELEGRAMRU United Kingdom 44->76 78 78.47.228.71, 22022, 49720 HETZNER-ASDE Germany 44->78 110 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 44->110 112 Tries to harvest and steal browser information (history, passwords, etc) 44->112 114 Tries to steal Crypto Currency Wallets 44->114 50 conhost.exe 48->50         started        signatures19 process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-06-22 21:27:11 UTC
File Type:
PE (Exe)
Extracted files:
45
AV detection:
25 of 36 (69.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hga2m5r55c3ilrcstnbai3ndolupnok2x5r7n3vzdpuokxwa6noq._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
Stop
6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
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83c4c80adbeb1d8411e49c1d14a886af6a26c9fb9827d8852d4e45e4a5f09b17
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a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
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b299675e7e4654beadcaa2c38a96bf8324bbde96904ede17fdd88ebb7fdf2748
Stop
d46fec4abba46efe6663f19c2d9963a612f4ff25023c0dc6fc5bb559f106859d
Stop
+ 2'144 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:153ce668f1e21829c936c2b11fa4d869 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230623-af2lqaca2w/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, 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://steamcommunity.com/profiles/76561199235044780
https://t.me/headlist
Unpacked files
SH256 hash:
7e724b06bb7f246b7dd13fdf99a15cd3893e3cd5925b5a386231799d9a70ae6a
MD5 hash:
3a9ff7697e975b3ecc19bd10e806b817
SHA1 hash:
58e98ffe9ce614044e24d541f8c3fe40028491cf
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/57059770-4d1c-4bd1-9ea5-f195ee3e3ac7/
Parent samples :
dd602553a168ced037c65973c341a96a2ed995c4ac397f71f0426fcb75ce5d09
6d30a028003763cc6dea64efa67b8ce750e489434ba44ee8c156cf3941f546e1
23638441c0ede5ba7b8be3f63c2cc2d0d69882e7d01720116f94d56388eb0cef
3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d
SH256 hash:
3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d
MD5 hash:
2a3f36cc1fd1f55dc98fd6592cd5d80a
SHA1 hash:
9eabc031f809f6afd46f12de051a6b903952db7b
Link:
https://www.unpac.me/results/57059770-4d1c-4bd1-9ea5-f195ee3e3ac7/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3981a6763de8/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/3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d

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:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Ransomware_Stop_1e8d48ff
Create hunting rule
Author:Elastic Security
Rule name:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.

File information

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

Web download

Stop

Executable exe 3981a6763de8b685c4529b42046da372e8f6b95abf63f6eeb91be8e55ec0f35d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2635570/
Cape
Cape
https://www.capesandbox.com/analysis/401766/

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