MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 11a5624d486d01bf1ebbf7d808524d44b26965f7e9ec89abebf75a9afc34b165. 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: 11


Intelligence 11 IOCs 1 YARA 2 File information Comments

SHA256 hash: 11a5624d486d01bf1ebbf7d808524d44b26965f7e9ec89abebf75a9afc34b165
SHA3-384 hash: 1ac52394386e6013f10eb18562db10d6bd849fefc668d4c560a6bd5b332eb2d006a21e57daa5cd006bea52fc41fd239e
SHA1 hash: 9aa4d3da5c9af5f79294d0d8abf2f56d1d581ac3
MD5 hash: 8f39890206e57326d973881db41c639b
humanhash: ack-tango-jupiter-saturn
File name:8F39890206E57326D973881DB41C639B.exe
Download: download sample
Signature Stop
File size:911'360 bytes
First seen:2021-06-29 21:10:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c76f45ab523e8af383de4b12fbbc52d1 (1 x Smoke Loader, 1 x Stop)
ssdeep 12288:bQ3Q2IRAASaD5DbzS3OlQInv6V247ugur8p0Hgdo+BlymYPduPPPMINEnXXrKunk:72HhirBDnyVBaXgtdoLgPPuXrpXlIx
Threatray 321 similar samples on MalwareBazaar
TLSH 4C15F100B681C035E5B312F8996AD7AD913C7AF25B5451CBA3D8EAEE66345E2FC30317
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://astdg.top/nddddhsspen6/get.php

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://astdg.top/nddddhsspen6/get.php https://threatfox.abuse.ch/ioc/155460/

Intelligence


File Origin
# of uploads :
1
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8F39890206E57326D973881DB41C639B.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-29 21:11:07 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Verdict:
Malicious
Result
Threat name:
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 442104 Sample: CMXz729xzg.exe Startdate: 29/06/2021 Architecture: WINDOWS Score: 100 56 Multi AV Scanner detection for domain / URL 2->56 58 Antivirus detection for URL or domain 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 3 other signatures 2->62 8 CMXz729xzg.exe 2->8         started        11 CMXz729xzg.exe 2->11         started        13 CMXz729xzg.exe 2->13         started        15 CMXz729xzg.exe 2->15         started        process3 signatures4 66 Injects a PE file into a foreign processes 8->66 17 CMXz729xzg.exe 1 19 8->17         started        68 Detected unpacking (overwrites its own PE header) 11->68 70 Contains functionality to inject code into remote processes 11->70 22 CMXz729xzg.exe 1 17 11->22         started        72 Multi AV Scanner detection for dropped file 13->72 74 Machine Learning detection for dropped file 13->74 24 CMXz729xzg.exe 13 13->24         started        26 CMXz729xzg.exe 13 15->26         started        process5 dnsIp6 48 astdg.top 179.185.138.16, 49710, 80 TELEFONICABRASILSABR Brazil 17->48 36 C:\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\Desktop\...behaviorgraphIGIYTFFYT.mp3, data 17->38 dropped 40 C:\Users\user\Desktop\...\PIVFAGEAAV.xlsx, data 17->40 dropped 46 5 other files (2 malicious) 17->46 dropped 64 Modifies existing user documents (likely ransomware behavior) 17->64 50 api.2ip.ua 77.123.139.190, 443, 49702, 49703 VOLIA-ASUA Ukraine 22->50 52 192.168.2.1 unknown unknown 22->52 42 C:\Users\user\AppData\...\CMXz729xzg.exe, PE32 22->42 dropped 44 C:\Users\...\CMXz729xzg.exe:Zone.Identifier, ASCII 22->44 dropped 28 CMXz729xzg.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 CMXz729xzg.exe 13 28->33         started        process11 dnsIp12 54 api.2ip.ua 33->54
Threat name:
Win32.Ransomware.Stop
Status:
Malicious
First seen:
2021-06-28 12:30:57 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
35 of 46 (76.09%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery persistence
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Modifies file permissions
Unpacked files
SH256 hash:
cd7629ae0ee6ff15aa16024eb8e041a8ab9fa84030acbd7044b8eedbc2e5503b
MD5 hash:
c2295920f9fd036e894de851cf8cd05f
SHA1 hash:
2eb16e66b8be185afa9c632cf089ab30cfc9bc05
Detections:
win_stop_auto
SH256 hash:
11a5624d486d01bf1ebbf7d808524d44b26965f7e9ec89abebf75a9afc34b165
MD5 hash:
8f39890206e57326d973881db41c639b
SHA1 hash:
9aa4d3da5c9af5f79294d0d8abf2f56d1d581ac3
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:SUSP_XORed_URL_in_EXE
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

File information


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

Comments