MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294
SHA3-384 hash: 9afb9fb78e4ba15f90a7543336b42afc86103e12ea1b451142a8b47f0b3d4d246f3762d7da9462b6227f91fc05d0ddab
SHA1 hash: 4f655e256571b98b11e522f3cda3af6e158c9d9d
MD5 hash: 693c542541c092a2919a76016021f7a5
humanhash: four-zebra-shade-oscar
File name:693c542541c092a2919a76016021f7a5.exe
Download: download sample
Signature Stop
Create hunting rule
File size:858'112 bytes
First seen:2022-11-01 20:35:22 UTC
Last seen:2022-11-01 22:53:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 86d8f2a7100566fa055c9f5f14f6c0ca (1 x RedLineStealer, 1 x Stop)
ssdeep 12288:fnhhTDJhDVtMqBhS36oZRk3FCR+c0X15x/qX9z1kxTeG7:vhhTDfDQqHS3RZKVEO/yz1oTe
Threatray 2'586 similar samples on MalwareBazaar
TLSH T1FB0512E175A3C031C4663530957AFB846B7FB462E520848736B4273E2F31BD2AA9735B
TrID 40.3% (.EXE) Win64 Executable (generic) (10523/12/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4505/5/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 480c1c4c4f594b14 (172 x Smoke Loader, 134 x RedLineStealer, 98 x Amadey)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://fresherlights.com/test1/get.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
408
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
693c542541c092a2919a76016021f7a5.exe
Verdict:
Malicious activity
Analysis date:
2022-11-01 20:42:16 UTC
Tags:
trojan ransomware stop loader stealer vidar
Link:
https://app.any.run/tasks/c6ef87e1-2ff5-4542-b36d-3ec0622c9082

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/326913/
Detection(s):
SecuriteInfo.com.Ransom.Win32.StopCrypt.SZ.MTB.3470.4696.UNOFFICIAL
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
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/636183339b2225917c1c578c/reports/e3935eac-5a84-4341-ac47-56fdcb537eaa/overview
Result
Verdict:
SUSPICIOUS
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/27a46244-f36c-499d-afbf-81db11b987fb
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1102805
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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 Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 735466 Sample: V67kVO7cjk.exe Startdate: 01/11/2022 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for URL or domain 2->64 66 5 other signatures 2->66 8 V67kVO7cjk.exe 2->8         started        11 V67kVO7cjk.exe 2->11         started        13 V67kVO7cjk.exe 2->13         started        15 V67kVO7cjk.exe 2->15         started        process3 signatures4 70 Injects a PE file into a foreign processes 8->70 17 V67kVO7cjk.exe 19 8->17         started        72 Contains functionality to inject code into remote processes 11->72 22 V67kVO7cjk.exe 1 16 11->22         started        74 Multi AV Scanner detection for dropped file 13->74 76 Machine Learning detection for dropped file 13->76 78 Writes a notice file (html or txt) to demand a ransom 13->78 24 V67kVO7cjk.exe 12 13->24         started        26 V67kVO7cjk.exe 12 15->26         started        28 MpCmdRun.exe 15->28         started        process5 dnsIp6 52 fresherlights.com 211.171.233.129, 49704, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 17->52 40 C:\Users\user\_readme.txt, ASCII 17->40 dropped 42 C:\Users\user\...\ChromeSetup.exe.bowd (copy), MS-DOS 17->42 dropped 44 C:\Users\user\Downloads\ChromeSetup.exe, MS-DOS 17->44 dropped 50 6 other malicious files 17->50 dropped 68 Modifies existing user documents (likely ransomware behavior) 17->68 54 api.2ip.ua 162.0.217.254, 443, 49697, 49700 ACPCA Canada 22->54 46 C:\Users\user\AppData\...\V67kVO7cjk.exe, PE32 22->46 dropped 48 C:\Users\...\V67kVO7cjk.exe:Zone.Identifier, ASCII 22->48 dropped 30 V67kVO7cjk.exe 22->30         started        33 icacls.exe 22->33         started        35 conhost.exe 28->35         started        file7 signatures8 process9 signatures10 80 Injects a PE file into a foreign processes 30->80 37 V67kVO7cjk.exe 12 30->37         started        process11 dnsIp12 56 192.168.2.1 unknown unknown 37->56 58 api.2ip.ua 37->58
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-11-01 20:36:10 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d6a4xg73geaerii64xbqttt43spwz7otgs4rpaylfknhrzlymkka._file
Verdict:
malicious
Similar samples:
2eead7300ef128f57b8d581d8c77af8306791628c54f0f3d61758f896cb2d9d2
Stop
4d06c8d3c4fdf4deeea0a286fb758e3478de2b4969b7a21da686efe224a8536f
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53273f74d14d08f30b348131249213ed89cb9b9ec260245d2d5e6098a1f425ff
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5718efcc7fbdfdc203bcdc098b56aaeba9131f7fe59fe2f1f78685a899840ac8
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5fd628901f00dc6a963eb149d432194b8ba17c5338a8cb85fc2494afa2538750
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757f224af2011afcf0cf966da9a88fa0c6c465a581832e82c15a96f8c7e06bb9
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87a4e09cd09cdee5b196d6a137868ecd979ae1e69ec188ff39459327b68bd402
Stop
ec93ce8cce6f314e3df3ff7e7bed1e2acbe48e6871584c7ec4ef49a5febd4aa9
Stop
+ 2'576 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/221101-zdkb4aehc2/
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
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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://fresherlights.com/test1/get.php
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d3fc3019-edd5-4053-8648-7577fa011f0e
Unpacked files
SH256 hash:
563ac2a6197af7d6cc1fc5b43d3e11a8415860cc79cfa683c839592ba11aeef3
MD5 hash:
4c64b1b2f7da7363c2ec41b8502b3412
SHA1 hash:
f87182f56b334e9e598b9c6f5009fe22c6dcee5f
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/fd59b67b-0e60-4aed-b70a-f484c689fffd/
Parent samples :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 hash:
1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294
MD5 hash:
693c542541c092a2919a76016021f7a5
SHA1 hash:
4f655e256571b98b11e522f3cda3af6e158c9d9d
Link:
https://www.unpac.me/results/fd59b67b-0e60-4aed-b70a-f484c689fffd/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1f81cb9bfb31/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/1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

File information

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

Web download

Stop

Executable exe 1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2393524/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/326913/

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