MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48. 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: 15


Intelligence 15 IOCs YARA 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
SHA3-384 hash: 83070a11ddee13dd51e43e20e47a890f9c2fddd8edad19224e18ad2a2718ecade565305780c891bc869ce814ef226a03
SHA1 hash: 96d3de3ac3ca32efcc3d911b0389e13f43ae1c13
MD5 hash: 9f91afdb58b312a555db2978d7157150
humanhash: steak-lactose-lithium-stream
File name:9f91afdb58b312a555db2978d7157150.exe
Download: download sample
Signature Stop
Create hunting rule
File size:836'096 bytes
First seen:2024-04-23 20:15:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0d1ba1b7736d2e87a8c9ef2f7961e417 (2 x Stop)
ssdeep 12288:E6uXncCdGzaVsGgZLhq1At2krFYkWog9feZN7kF5MM7GZ3SVt//sjdnN7E:EncKWa+jZRrFVWBfFFHQa187
Threatray 1'878 similar samples on MalwareBazaar
TLSH T1DD05024372E16CA5E476E7324D2ECAB0172EFDF19E266BA73348561F48741D1C2A3B12
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 0201032505011100 (1 x Stop)
Reporter abuse_ch
Tags:exe Stop


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

Intelligence

File Origin
# of uploads :
1
# of downloads :
359
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 05:30:09 UTC
Tags:
loader vodkagats djvu ransomware stop raccoonclipper
Link:
https://app.any.run/tasks/0a5ef011-2e4c-4a99-89b5-a5e683c6faf9

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

Behaviour
Searching for the window
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
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
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/c5c8aad9-f0c9-4e4c-8326-d4dce4b70ac4
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1430572
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected AntiVM3
Yara detected Babuk Ransomware
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1430572 Sample: AaIo4VGgvO.exe Startdate: 23/04/2024 Architecture: WINDOWS Score: 100 84 sdfjhuz.com 2->84 86 cajgtus.com 2->86 88 2 other IPs or domains 2->88 100 Snort IDS alert for network traffic 2->100 102 Found malware configuration 2->102 104 Malicious sample detected (through community Yara rule) 2->104 106 13 other signatures 2->106 13 AaIo4VGgvO.exe 2->13         started        16 mstsca.exe 2->16         started        18 AaIo4VGgvO.exe 2->18         started        20 5 other processes 2->20 signatures3 process4 signatures5 124 Detected unpacking (changes PE section rights) 13->124 126 Detected unpacking (overwrites its own PE header) 13->126 128 Writes a notice file (html or txt) to demand a ransom 13->128 138 2 other signatures 13->138 22 AaIo4VGgvO.exe 1 17 13->22         started        130 Antivirus detection for dropped file 16->130 132 Multi AV Scanner detection for dropped file 16->132 134 Machine Learning detection for dropped file 16->134 26 mstsca.exe 16->26         started        136 Injects a PE file into a foreign processes 18->136 28 AaIo4VGgvO.exe 18->28         started        30 AaIo4VGgvO.exe 20->30         started        32 AaIo4VGgvO.exe 20->32         started        34 mstsca.exe 20->34         started        36 2 other processes 20->36 process6 dnsIp7 90 api.2ip.ua 172.67.139.220, 443, 49730, 49731 CLOUDFLARENETUS United States 22->90 68 C:\Users\user\AppData\...\AaIo4VGgvO.exe, PE32 22->68 dropped 38 AaIo4VGgvO.exe 22->38         started        41 icacls.exe 22->41         started        43 schtasks.exe 26->43         started        file8 process9 signatures10 118 Injects a PE file into a foreign processes 38->118 45 AaIo4VGgvO.exe 1 27 38->45         started        50 conhost.exe 43->50         started        process11 dnsIp12 96 sdfjhuz.com 187.228.55.117, 49733, 80 UninetSAdeCVMX Mexico 45->96 98 cajgtus.com 189.195.132.134, 49734, 49735, 49736 MegaCableSAdeCVMX Mexico 45->98 76 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 45->76 dropped 78 C:\_README.txt, ASCII 45->78 dropped 80 C:\Users\user\...\acroNGLLog.txt.bgjs (copy), data 45->80 dropped 82 63 other malicious files 45->82 dropped 140 Tries to harvest and steal browser information (history, passwords, etc) 45->140 142 Modifies existing user documents (likely ransomware behavior) 45->142 52 build2.exe 45->52         started        55 build3.exe 45->55         started        file13 signatures14 process15 signatures16 108 Detected unpacking (changes PE section rights) 52->108 110 Detected unpacking (overwrites its own PE header) 52->110 112 Writes many files with high entropy 52->112 57 build2.exe 52->57         started        114 Uses schtasks.exe or at.exe to add and modify task schedules 55->114 116 Injects a PE file into a foreign processes 55->116 62 build3.exe 55->62         started        process17 dnsIp18 92 95.217.9.149, 443, 49738, 49739 HETZNER-ASDE Germany 57->92 94 steamcommunity.com 104.67.208.180, 443, 49737 CMCSUS United States 57->94 70 C:\Users\user\AppData\Local\...\sqln[1].dll, PE32 57->70 dropped 72 C:\Users\user\...\76561199673019888[1].htm, data 57->72 dropped 120 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 57->120 122 Tries to harvest and steal browser information (history, passwords, etc) 57->122 74 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 62->74 dropped 64 schtasks.exe 62->64         started        file19 signatures20 process21 process22 66 conhost.exe 64->66         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48/
Threat name:
Win32.Backdoor.Mokes
Create hunting rule
Status:
Malicious
First seen:
2024-04-23 20:16:08 UTC
File Type:
PE (Exe)
Extracted files:
60
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=srxevbxrzmrpvml7py5jubbciiphqg4zgv2dn2aw3wya4uku5vea._file
Verdict:
malicious
Similar samples:
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Stop
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Stop
+ 1'868 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/240423-y14tksbe65/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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/test1/get.php
Unpacked files
SH256 hash:
28e1c285437437f28462bb73d77b4e64f2f4afd68c3618641f6b593c3b2b4bea
MD5 hash:
4d24b5da9e5c17259cfd517ac4529554
SHA1 hash:
d4ba9d60da54944dfabdd9e9dc6cc35535affdb3
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/915634af-683e-48ea-b84f-2d57b7753f64/
Parent samples :
946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
455f4327f9c1e07dec6538bce0edb0b935ad485e0f01cea4e68fa950b42891a2
6c0bd6cae657449a07dcb78940ea732d7e4e24546477b083116bff4c99bd417d
8e53393db26258fb917fd570861070420d31148c2826dcdbed52ce326c2d5ff6
444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83
62623bddab0911eca4cd33135383761dbcf6f22a480eda9761becf638f1c4546
9c9ed624eaf441b4637d50fe25d386636c5cb59fb69f5b824afc7cec6dfff7f0
8b7851ae383ee5e1d106322f99d0a6149044e317ed310ce7464ff7d82afa725c
6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239
SH256 hash:
946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
MD5 hash:
9f91afdb58b312a555db2978d7157150
SHA1 hash:
96d3de3ac3ca32efcc3d911b0389e13f43ae1c13
Link:
https://www.unpac.me/results/915634af-683e-48ea-b84f-2d57b7753f64/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/946e4a86f1cb/report/overview.html
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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2794529/
  
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_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::LoadLibraryA
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AddConsoleAliasW
KERNEL32.dll::AddConsoleAliasA
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryW
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen

Comments