MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83. 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: 16


Intelligence 16 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83
SHA3-384 hash: 827fd38abcb8f1a2e4dfa8b26a6c5cfd1976fe7874e383c68eb29878521e13f77c5e2d3f144648f5d3e92a8514c14f7b
SHA1 hash: a7c201719a6c4e58f57baa2a88b110d72f3daefe
MD5 hash: f4c37292b365c19e6d2feeb6a17c4049
humanhash: fifteen-october-twenty-muppet
File name:f4c37292b365c19e6d2feeb6a17c4049.exe
Download: download sample
Signature Stop
Create hunting rule
File size:799'232 bytes
First seen:2024-04-24 10:05:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0c221599ea7b9c4f042cfb23a69ed3b1 (3 x Stop)
ssdeep 12288:6DcWGLixjy0li5QMCgpMeahQ+siBwpBezGbkhvYesVmKiOAfc4Cz9fA1iqCD:6iily4i3CgeSKBtXKiMt9fa8D
Threatray 1'879 similar samples on MalwareBazaar
TLSH T1E20512003EE6D8B0E4B3C7359C249AA0D23BFCB7A071497733582A4F5AB12D1955EB76
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 0009092412111000 (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 :
400
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 10:07:46 UTC
Tags:
loader vodkagats djvu ransomware stop
Link:
https://app.any.run/tasks/d9505296-18ed-4f79-8f6e-6fa02ddf8463

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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed
Link:
https://www.filescan.io/uploads/6628d99754bafb7d21dba8e4/reports/1ee88dac-1014-483e-a81f-3354eced140e/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/af335628-11fb-4442-8af1-0b2c212db377
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1430943
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
Infects executable files (exe, dll, sys, html)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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: 1430943 Sample: Z4CYGTBlj7.exe Startdate: 24/04/2024 Architecture: WINDOWS Score: 100 88 sdfjhuz.com 2->88 90 cajgtus.com 2->90 92 2 other IPs or domains 2->92 104 Snort IDS alert for network traffic 2->104 106 Multi AV Scanner detection for domain / URL 2->106 108 Found malware configuration 2->108 110 12 other signatures 2->110 13 Z4CYGTBlj7.exe 2->13         started        16 Z4CYGTBlj7.exe 2->16         started        18 mstsca.exe 2->18         started        20 6 other processes 2->20 signatures3 process4 signatures5 128 Detected unpacking (changes PE section rights) 13->128 130 Detected unpacking (overwrites its own PE header) 13->130 132 Writes a notice file (html or txt) to demand a ransom 13->132 142 2 other signatures 13->142 22 Z4CYGTBlj7.exe 1 16 13->22         started        134 Antivirus detection for dropped file 16->134 136 Multi AV Scanner detection for dropped file 16->136 138 Machine Learning detection for dropped file 16->138 26 Z4CYGTBlj7.exe 16->26         started        140 Injects a PE file into a foreign processes 18->140 28 mstsca.exe 18->28         started        30 Z4CYGTBlj7.exe 20->30         started        32 Z4CYGTBlj7.exe 20->32         started        34 mstsca.exe 20->34         started        36 2 other processes 20->36 process6 dnsIp7 94 api.2ip.ua 172.67.139.220, 443, 49705, 49706 CLOUDFLARENETUS United States 22->94 68 C:\Users\user\AppData\...\Z4CYGTBlj7.exe, PE32 22->68 dropped 38 Z4CYGTBlj7.exe 22->38         started        41 icacls.exe 22->41         started        70 C:\Users\user\_README.txt, ASCII 26->70 dropped 72 C:\Users\user\AppData\Local\...\_README.txt, ASCII 26->72 dropped 43 schtasks.exe 28->43         started        file8 process9 signatures10 122 Injects a PE file into a foreign processes 38->122 45 Z4CYGTBlj7.exe 1 25 38->45         started        50 conhost.exe 43->50         started        process11 dnsIp12 100 cajgtus.com 189.163.142.13, 49709, 49710, 49711 UninetSAdeCVMX Mexico 45->100 102 sdfjhuz.com 211.181.24.133, 49708, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 45->102 80 C:\_README.txt, ASCII 45->80 dropped 82 C:\Users\...\DefaultLayouts.xml.bgjs (copy), data 45->82 dropped 84 ExplorerStartupLog...nce.etl.bgjs (copy), data 45->84 dropped 86 106 other malicious files 45->86 dropped 144 Tries to harvest and steal browser information (history, passwords, etc) 45->144 146 Infects executable files (exe, dll, sys, html) 45->146 148 Modifies existing user documents (likely ransomware behavior) 45->148 52 build2.exe 45->52         started        55 build3.exe 45->55         started        file13 signatures14 process15 signatures16 112 Detected unpacking (changes PE section rights) 52->112 114 Detected unpacking (overwrites its own PE header) 52->114 116 Writes many files with high entropy 52->116 57 build2.exe 52->57         started        118 Uses schtasks.exe or at.exe to add and modify task schedules 55->118 120 Injects a PE file into a foreign processes 55->120 62 build3.exe 55->62         started        process17 dnsIp18 96 95.217.9.149, 443, 49713, 49714 HETZNER-ASDE Germany 57->96 98 steamcommunity.com 184.85.65.125, 443, 49712 AKAMAI-ASUS United States 57->98 74 C:\Users\user\AppData\Local\...\sqln[1].dll, PE32 57->74 dropped 76 C:\Users\user\...\76561199673019888[1].htm, data 57->76 dropped 124 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 57->124 126 Tries to harvest and steal browser information (history, passwords, etc) 57->126 78 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 62->78 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/444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83/
Threat name:
Win32.Backdoor.Mokes
Create hunting rule
Status:
Malicious
First seen:
2024-04-24 10:06:05 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=irgpoebs47d34ktzevnpj6zyxkydgp5qubqozq76sfdt2jxlz2bq._file
Verdict:
malicious
Similar samples:
200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64
Stop
455f4327f9c1e07dec6538bce0edb0b935ad485e0f01cea4e68fa950b42891a2
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53193f424f55572d6c57e1efc0d9afbce1fb8d2e09de0669bc230c34dccd330d
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bcbaec2245e008d98b6b8a15dd780aacf1b3afbe3daf68508f48a5e32e283c1c
Stop
+ 1'869 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-l43dpsgf7w/
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/20603133-472a-4d58-86be-a862d53edfdb/
Parent samples :
946e4a86f1cb22fab17f7e3a9a0422421e781b99357436e816ddb00e5154ed48
455f4327f9c1e07dec6538bce0edb0b935ad485e0f01cea4e68fa950b42891a2
6c0bd6cae657449a07dcb78940ea732d7e4e24546477b083116bff4c99bd417d
8e53393db26258fb917fd570861070420d31148c2826dcdbed52ce326c2d5ff6
444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83
62623bddab0911eca4cd33135383761dbcf6f22a480eda9761becf638f1c4546
9c9ed624eaf441b4637d50fe25d386636c5cb59fb69f5b824afc7cec6dfff7f0
8b7851ae383ee5e1d106322f99d0a6149044e317ed310ce7464ff7d82afa725c
6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239
SH256 hash:
444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83
MD5 hash:
f4c37292b365c19e6d2feeb6a17c4049
SHA1 hash:
a7c201719a6c4e58f57baa2a88b110d72f3daefe
Link:
https://www.unpac.me/results/20603133-472a-4d58-86be-a862d53edfdb/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/444cf71032e7/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/444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83

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_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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 444cf71032e7c7be2a79255af4fb38bab0333fb0a060ecc3fe91473d26ebce83

(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_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::GetWindowsDirectoryW
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen

Comments