MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca
SHA3-384 hash: a21386c48481f5529ddedf1e2bce6b9593fc375cb5be2d4692d660558e3cdb77a16dcd4b4fded60eb47ca386805e85b0
SHA1 hash: 3427f239d05c4e7d965b6dbf476ac02732fe4453
MD5 hash: d6909d40f253b44b4269093760c0a9fa
humanhash: summer-kilo-mississippi-mike
File name:file.exe
Download: download sample
Signature Stop
Create hunting rule
File size:843'776 bytes
First seen:2023-06-10 00:35:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 38174083713e590cf897cdb95c1ddaa8 (2 x Stop, 1 x Rhadamanthys, 1 x GCleaner)
ssdeep 12288:PSKlpaSVIm2VujnZ6OU0ZmoTRxjjEVBjqwDguOFt9Z2lfAL+3gugJ:PSKWw1YOLZm8HkRjDgX/O0MgugJ
Threatray 1'962 similar samples on MalwareBazaar
TLSH T14805D01392917C61E9294BB39F2E86F8760DF6508F787BAA1219FA2F17B01B1C173345
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 01606a6a62626240 (1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
305
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-06-10 00:39:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/acc2e813-91e3-449c-95e2-f782187f7385

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/397430/
Detection(s):
Win.Packed.Zusy-10003906-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
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
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/90152/overview
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6483c572d9c56cc8fb435d7a/reports/129007fa-4f91-44c3-8f29-3a1aa6c0176a/overview
Verdict:
Malicious
Labled as:
Ser.Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca
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/e53864be-6902-419c-a21e-f39a12646e42
Result
Threat name:
Babuk, Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1252194
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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: 885214 Sample: file.exe Startdate: 10/06/2023 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 file.exe 2->8         started        11 file.exe 2->11         started        13 file.exe 2->13         started        15 file.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 74 2 other signatures 8->74 17 file.exe 1 19 8->17         started        70 Contains functionality to inject code into remote processes 11->70 72 Injects a PE file into a foreign processes 11->72 22 file.exe 1 17 11->22         started        24 file.exe 13 13->24         started        26 file.exe 15->26         started        process5 dnsIp6 48 zexeq.com 186.182.55.44, 49697, 80 TechtelLMDSComunicacionesInteractivasSAAR Argentina 17->48 36 C:\Users\user\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\Desktop\file.exe.nerz (copy), MS-DOS 17->38 dropped 40 C:\Users\user\Desktop\file.exe, MS-DOS 17->40 dropped 46 4 other malicious files 17->46 dropped 62 Modifies existing user documents (likely ransomware behavior) 17->62 50 api.2ip.ua 162.0.217.254, 443, 49694, 49695 ACPCA Canada 22->50 42 C:\Users\user\AppData\Local\...\file.exe, PE32 22->42 dropped 44 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 22->44 dropped 28 file.exe 22->28         started        31 icacls.exe 22->31         started        file7 signatures8 process9 signatures10 76 Injects a PE file into a foreign processes 28->76 33 file.exe 13 28->33         started        process11 dnsIp12 52 api.2ip.ua 33->52
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca/
Threat name:
Win32.Trojan.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2023-06-08 12:55:27 UTC
File Type:
PE (Exe)
Extracted files:
74
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eh4iw2l2bgjaz74oabxrnrh7ikzcz3n6rfgi6cqmhappf6htspfa._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
Stop
6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
Stop
83c4c80adbeb1d8411e49c1d14a886af6a26c9fb9827d8852d4e45e4a5f09b17
Stop
a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
Stop
b299675e7e4654beadcaa2c38a96bf8324bbde96904ede17fdd88ebb7fdf2748
Stop
d46fec4abba46efe6663f19c2d9963a612f4ff25023c0dc6fc5bb559f106859d
Stop
+ 1'952 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:a81bcf59d85e6e13257840e65b9d1da8 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230610-axxdbsee8y/
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/76561199511129510
https://t.me/rechnungsbetrag
Unpacked files
SH256 hash:
82a907d43d97d9426c8bcb21ba10d2232d774942618cc6e136a1e064ec7d1410
MD5 hash:
6d249d9582aa18274262fe80e21766ea
SHA1 hash:
5fe207eedc629060e6a30444051472555c1d32d5
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/46604325-7f6f-4618-a7e6-9aa670d8819b/
Parent samples :
c402ab915a89ed76f00e7d86dd1fa1aa6ca69b7ca34344995c7ce3a1b51b7b25
d6d3b8afca43e956e5d243b5fe86ffc7c5e5eacf31974108035d2678bde1ac73
e91bc5755d9f1aa37e718b3f5350f7d1474e930898b177fe9cc1cc18c54ea296
55d5702e6d30bfef8c4c036744bfe2330137d52dc32ee3399b1375614f815a9b
db5a87871265beac473e5be77b89d354e8ecc5039a680c23403dd2e9ba9f4308
e2d46d2b425da9d93663333937e8c28c5464a4daaf3e6c59ca0bbcf4478160ce
8e50809f79d9ae944f80e9c4ce75e1dde928ddf4e34663607bccc7463d922f27
c041c2a6e4803095086cc704bb84f9c7b377c6c4720bc45f76fc93fb53beb1fd
90694193de42805e79e29e2dd0de34482f3e2c808bc7798def94ffdffafa71cc
21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca
2bb69d10c71e28bbb51a7f6d261ee78b31c289abef0fdb8af28d6c7b4de5f5cc
SH256 hash:
21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca
MD5 hash:
d6909d40f253b44b4269093760c0a9fa
SHA1 hash:
3427f239d05c4e7d965b6dbf476ac02732fe4453
Link:
https://www.unpac.me/results/46604325-7f6f-4618-a7e6-9aa670d8819b/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/21f88b697a09/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/21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca

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 21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/397430/

Comments