MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe. 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 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe
SHA3-384 hash: 110f7c0c3cc0c04b7923a12cde7683e8fb809a6d78ea7cbde54a96cb403ed67db58f2ed9ea339795af2137ddffe12c58
SHA1 hash: 302d4b9f88ae7b085b56661774d6805156039924
MD5 hash: e9ff14a975f084f01373d468c0b91a16
humanhash: zebra-texas-massachusetts-eleven
File name:e9ff14a975f084f01373d468c0b91a16.exe
Download: download sample
Signature Stop
Create hunting rule
File size:781'824 bytes
First seen:2024-04-24 13:55:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash da85065239035ee146657c2492fb98d0 (2 x Stop)
ssdeep 12288:M2dc5bz6tqdDlvGkNwikL95whi6SY7Mf6cMFqNjOjNiaUORnV77J1BDg:uWqdBpNwJLsi6v7iMpxDV77J3s
Threatray 1'884 similar samples on MalwareBazaar
TLSH T12AF402027ED2C4A9D523DB72452099A0C67FFCF647258D27B34C13CE5E385E08A6E7A6
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
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 103468e090c8c400 (1 x Stop)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://cajgtus.com/test2/get.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
385
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 13:58:19 UTC
Tags:
loader vodkagats ransomware stop djvu
Link:
https://app.any.run/tasks/d9563e56-efd9-4268-8f6d-12205d34c809

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Sending a TCP request to an infection source
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
Query of malicious DNS domain
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint packed
Link:
https://www.filescan.io/uploads/66290f7651edb67852f8abb4/reports/96f543ef-1d56-4b9c-8896-eeeab602341f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe
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/05046adb-2834-48b1-9b77-34711ac6f11f
Result
Threat name:
Babuk, Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1431118
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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 dnsIp2 2 Behavior Graph ID: 1431118 Sample: mU2p71KMss.exe Startdate: 24/04/2024 Architecture: WINDOWS Score: 100 46 cajgtus.com 2->46 48 api.2ip.ua 2->48 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 6 other signatures 2->60 9 mU2p71KMss.exe 2->9         started        12 mU2p71KMss.exe 2->12         started        14 mU2p71KMss.exe 2->14         started        16 mU2p71KMss.exe 2->16         started        signatures3 process4 signatures5 64 Antivirus detection for dropped file 9->64 66 Multi AV Scanner detection for dropped file 9->66 68 Detected unpacking (changes PE section rights) 9->68 76 2 other signatures 9->76 18 mU2p71KMss.exe 1 18 9->18         started        70 Detected unpacking (overwrites its own PE header) 12->70 72 Contains functionality to inject code into remote processes 12->72 74 Injects a PE file into a foreign processes 12->74 23 mU2p71KMss.exe 1 16 12->23         started        25 mU2p71KMss.exe 12 14->25         started        27 mU2p71KMss.exe 16->27         started        process6 dnsIp7 50 cajgtus.com 62.150.232.50, 49707, 80 QNETKuwaitKW Kuwait 18->50 36 C:\Users\user\_README.txt, ASCII 18->36 dropped 38 C:\Users\user\...\mU2p71KMss.exe.bgzq (copy), MS-DOS 18->38 dropped 40 C:\Users\user\Desktop\mU2p71KMss.exe, MS-DOS 18->40 dropped 44 4 other malicious files 18->44 dropped 62 Modifies existing user documents (likely ransomware behavior) 18->62 52 api.2ip.ua 104.21.65.24, 443, 49704, 49705 CLOUDFLARENETUS United States 23->52 42 C:\Users\user\AppData\...\mU2p71KMss.exe, PE32 23->42 dropped 29 mU2p71KMss.exe 23->29         started        32 icacls.exe 23->32         started        file8 signatures9 process10 signatures11 78 Injects a PE file into a foreign processes 29->78 34 mU2p71KMss.exe 12 29->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe/
Threat name:
Win32.Backdoor.Mokes
Create hunting rule
Status:
Malicious
First seen:
2024-04-24 13:56:06 UTC
File Type:
PE (Exe)
Extracted files:
30
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=62thmvsc6d4mjoa7ixkodkpwkucugk57jqsj7i6jnobntrys577a._file
Verdict:
malicious
Similar samples:
200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64
Stop
455f4327f9c1e07dec6538bce0edb0b935ad485e0f01cea4e68fa950b42891a2
Stop
53193f424f55572d6c57e1efc0d9afbce1fb8d2e09de0669bc230c34dccd330d
Stop
651bf6dc2ce11fbbda045ac186ab58ac3d691f8d28dc811f2b1552fe74b275cc
Stop
6c0bd6cae657449a07dcb78940ea732d7e4e24546477b083116bff4c99bd417d
Stop
8e53393db26258fb917fd570861070420d31148c2826dcdbed52ce326c2d5ff6
Stop
946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
Stop
bcbaec2245e008d98b6b8a15dd780aacf1b3afbe3daf68508f48a5e32e283c1c
Stop
+ 1'874 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware
Link:
https://tria.ge/reports/240424-q8pevsbb5v/
Behaviour
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
Checks computer location settings
Modifies file permissions
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://cajgtus.com/test2/get.php
Unpacked files
SH256 hash:
18f3120c547c3568ab79e3762b4f3112f6f8c5024c35e6f3a2b43242191ce91d
MD5 hash:
0219f65aec5c3d049d69e9741fabf37a
SHA1 hash:
77f19519bd90bbed0da7eaea1ba74f67d51e84fc
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
SUSP_XORed_URL_In_EXE
Create hunting rule
MALWARE_Win_STOP
Create hunting rule
Link:
https://www.unpac.me/results/edca800b-10ef-4bf4-a8e3-157133aca547/
Parent samples :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 hash:
f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe
MD5 hash:
e9ff14a975f084f01373d468c0b91a16
SHA1 hash:
302d4b9f88ae7b085b56661774d6805156039924
Link:
https://www.unpac.me/results/edca800b-10ef-4bf4-a8e3-157133aca547/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f6a6765642f0/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/f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe

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:Check_Dlls
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:EXE_Stealer_StealC_Feb2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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 f6a6765642f0f8c4b81f45d4e1a9f65505432bbf4c249fa3c96b82d9c712effe

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2786048/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleProcessList
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen

Comments