MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c66f4f78a3ddcf801276a92de9a3d3bcea840e220ee8715e3cb535567358c957. 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: 15


Intelligence 15 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c66f4f78a3ddcf801276a92de9a3d3bcea840e220ee8715e3cb535567358c957
SHA3-384 hash: d5806a1d0de402bc9fd238f1b133b282aae40d761638db32059fb4f0faf536f8d669e726e5fa69458899f81b7302b938
SHA1 hash: f1b02a8f2bcfa5494a57cb203ecbb27a9e2c4a74
MD5 hash: 2de5e8b8d26e5cfe07d1ffe8e4157a3a
humanhash: pip-sierra-minnesota-hotel
File name:calculator632.exe
Download: download sample
Signature Stop
Create hunting rule
File size:806'400 bytes
First seen:2023-05-21 11:12:58 UTC
Last seen:2023-05-21 18:53:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash bb27c4958c76443fcfe46f9765d838a2 (9 x Stop, 5 x RedLineStealer, 4 x GCleaner)
ssdeep 12288:FMVKtW+qM7UdgR6LLVzaw8lAjcav9FeKW27MyndiEubPjw:FMAdqsLR6LLdwlA+Z9N8
Threatray 1'797 similar samples on MalwareBazaar
TLSH T187050137A19DE831E5254671CD3EC2B8262BF861BF181BCB36492B6B38317E2D576341
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 5303634323030302 (1 x Stop)
Reporter Neiki
Tags:Stop

Intelligence

File Origin
# of uploads :
3
# of downloads :
107
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
calculator632.exe
Verdict:
Malicious activity
Analysis date:
2023-05-21 11:28:30 UTC
Tags:
ransomware stop loader stealer vidar trojan arkei
Link:
https://app.any.run/tasks/ab18a535-8538-4530-ac3d-f9fc68e13852

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
Sending a custom TCP request
Searching for synchronization primitives
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6469fcc2a56da9afc154e8c8/reports/a8719ed7-6ee1-4885-8a64-af3856f83889/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c66f4f78a3ddcf801276a92de9a3d3bcea840e220ee8715e3cb535567358c957
Result
Verdict:
UNKNOWN
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/dda14d75-b1ca-40a2-bda1-a170917f4a5b
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1238716
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 sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c66f4f78a3ddcf801276a92de9a3d3bcea840e220ee8715e3cb535567358c957/
Threat name:
Win32.Ransomware.Stop
Create hunting rule
Status:
Malicious
First seen:
2023-05-21 08:20:04 UTC
File Type:
PE (Exe)
Extracted files:
35
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzxu66fd3xhyaetwvew6ti6txtviidrcb3uhcxr4wu2vm42yzflq._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
Stop
6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
Stop
83c4c80adbeb1d8411e49c1d14a886af6a26c9fb9827d8852d4e45e4a5f09b17
Stop
a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
Stop
b299675e7e4654beadcaa2c38a96bf8324bbde96904ede17fdd88ebb7fdf2748
Stop
d46fec4abba46efe6663f19c2d9963a612f4ff25023c0dc6fc5bb559f106859d
Stop
+ 1'787 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:9dfa7ee730fa2f1efb5ed51dbbec22f5 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230521-nbf14sce3v/
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/test1/get.php
https://steamcommunity.com/profiles/76561199263069598
https://t.me/cybehost
Unpacked files
SH256 hash:
323433aa5db127cd22f84d5c4f862561abecdd7028ace323996ceecb2558561b
MD5 hash:
3a6e53b85b72559d0db268d278a72993
SHA1 hash:
2f57c0d76227473c07bf11d3ab3ff673bdd72562
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/0243f059-e54c-4ad3-a839-21cb38c187cf/
Parent samples :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 hash:
c66f4f78a3ddcf801276a92de9a3d3bcea840e220ee8715e3cb535567358c957
MD5 hash:
2de5e8b8d26e5cfe07d1ffe8e4157a3a
SHA1 hash:
f1b02a8f2bcfa5494a57cb203ecbb27a9e2c4a74
Link:
https://www.unpac.me/results/0243f059-e54c-4ad3-a839-21cb38c187cf/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c66f4f78a3dd/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/c66f4f78a3ddcf801276a92de9a3d3bcea840e220ee8715e3cb535567358c957

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:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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:Telegram_Links
Create hunting rule
Rule name:Vidar
Create hunting rule
Author:kevoreilly,rony
Description:Vidar Payload
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.

Comments