MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505
SHA3-384 hash: e2c5b94d8a523dd5db0c909fbd67651d780fae157e70a90815f0be0bdca910995f4f061f9edf5ba3f635bd51f39669cc
SHA1 hash: 93b7acf6d2ed50ac8ae1780da53a97a910fe278a
MD5 hash: 9573f49bb7eb719e42406029044e236c
humanhash: oxygen-alanine-louisiana-august
File name:bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505
Download: download sample
Signature Stop
Create hunting rule
File size:828'416 bytes
First seen:2022-03-25 08:52:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a0ac95739c763bb58b1023ed75bb0bb7 (3 x Stop, 1 x Smoke Loader, 1 x Worm.Ramnit)
ssdeep 12288:2vuSV90FUjXlq5wltoyRrFPiOIA8PGm5twpzx3Z9Sdd3anwcyy:2vx+FUjXgUJ9iOwr5U39jwNy
Threatray 922 similar samples on MalwareBazaar
TLSH T1C10512127172D572E96A4530B124DBA26BFF75301879C00B3FB84BAD1E613D1E6B6B0B
File icon (PE):PE icon
dhash icon 5c599a3ce0c1c850 (36 x RedLineStealer, 27 x Stop, 21 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/257617/
Detection(s):
Win.Packed.Ransomx-9942100-0
Create hunting rule

Win.Packed.Crypterx-9942101-0
Create hunting rule

Win.Packed.Strab-9942213-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Sending a custom TCP request
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/623d83059253b276b76a7b7a/reports/1cfe242a-a63b-40da-9055-4183af0d90a5/overview
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/1deecb2f-cd14-47c7-b5c5-ebcaa46dee51
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/964415
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 596897 Sample: cZgq7C2mVC Startdate: 25/03/2022 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 5 other signatures 2->62 8 cZgq7C2mVC.exe 2->8         started        11 cZgq7C2mVC.exe 2->11         started        13 cZgq7C2mVC.exe 2->13         started        15 cZgq7C2mVC.exe 2->15         started        process3 signatures4 66 Multi AV Scanner detection for dropped file 8->66 68 Machine Learning detection for dropped file 8->68 70 Injects a PE file into a foreign processes 8->70 17 cZgq7C2mVC.exe 18 8->17         started        72 Contains functionality to inject code into remote processes 11->72 22 cZgq7C2mVC.exe 1 16 11->22         started        24 cZgq7C2mVC.exe 12 13->24         started        26 cZgq7C2mVC.exe 12 15->26         started        process5 dnsIp6 48 fuyt.org 222.236.49.123, 49776, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 17->48 36 C:\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\...\cZgq7C2mVC.exe.eyrv (copy), MS-DOS 17->38 dropped 40 C:\Users\user\Desktop\cZgq7C2mVC.exe, MS-DOS 17->40 dropped 46 3 other malicious files 17->46 dropped 64 Modifies existing user documents (likely ransomware behavior) 17->64 50 api.2ip.ua 162.0.218.244, 443, 49749, 49756 ACPCA Canada 22->50 42 C:\Users\user\AppData\...\cZgq7C2mVC.exe, PE32 22->42 dropped 44 C:\Users\...\cZgq7C2mVC.exe:Zone.Identifier, ASCII 22->44 dropped 28 cZgq7C2mVC.exe 22->28         started        31 icacls.exe 22->31         started        52 192.168.2.1 unknown unknown 24->52 file7 signatures8 process9 signatures10 74 Injects a PE file into a foreign processes 28->74 33 cZgq7C2mVC.exe 12 28->33         started        process11 dnsIp12 54 api.2ip.ua 33->54
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-03-21 21:57:00 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
33 of 42 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x5g4v7rqy5enhlrvnwwk5y6g2m6zjhtknrj55qpv7vhkcllxwucq._file
Verdict:
malicious
Similar samples:
2a06da1f6bb8f01f932093ed9ae5f1ca2ff7b53b89dfd46a0102200cf3ebaead
Stop
2e71e3bcb39c87ae43d0019b5d62084b8eb2bb0ebe09c05d7cf2ad026082e527
Stop
2ec22ff642ea83f3ebccca4b3e339e489862f19734cdb412fb45f19861e87dca
Stop
30d61c9063fe72a9a6a1519ad4a2c43dc7e88fac46904e6f7227fa789be5dbb6
Stop
486ab4d9e0a524b8f734a9e45821538c31e18c7632af8e0765dc417b9a87c64d
Stop
923d2af76cd47509cd42c94e47b6198321b16c2123b09bb39aa26b8c3daf9647
Stop
962793c4decea8dd718bd96ccc4209ce744414a62e4afb93c79db64df4b792e2
Stop
+ 912 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu ransomware
Link:
https://tria.ge/reports/220325-kten8adef2/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://fuyt.org/test1/get.php
Unpacked files
SH256 hash:
93343957dec8d49678757b810895f8247a08a495c94fbbef971b4bb91992edf6
MD5 hash:
e65bb12bb7aadbde6ca7e64435c2670b
SHA1 hash:
2d42d7c9ba87efefeb96b424ede4d87a5d07a241
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/99406806-c836-4f50-8209-24ba41f42566/
Parent samples :
12559af5c2c626b4e492751a8235076667926d41d6a29d1792e8ce65164fc42c
bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505
1afa618ea5e953019173b3d0b4dad9082cefc71578b06e217ad58e4d6f7fdac3
334b8a74d8431027e9a01439ec7ef905e4b6899498d7a9995b3f718aedcfdfaa
bf8cc404ed07bc76b18996c161102766ace54b7d961931e94aca144456425caf
26732fab7a1410e958a80a6e776504f3f850cd8ce133ab8aab515af8bcea547e
bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391
SH256 hash:
bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505
MD5 hash:
9573f49bb7eb719e42406029044e236c
SHA1 hash:
93b7acf6d2ed50ac8ae1780da53a97a910fe278a
Link:
https://www.unpac.me/results/99406806-c836-4f50-8209-24ba41f42566/
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/bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505

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
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:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:XOREngine_Misc_XOR_Func
Create hunting rule
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/257617/

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