MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d. 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 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d
SHA3-384 hash: 453a027c0374402344f7bfba40e70c89056d28c310d7ae6b45b5ae5d836eaa8e1d067fc075e70d948ad120ae91c7ca6c
SHA1 hash: 905a3abae321d0d87f930de5120bd5db281c4153
MD5 hash: 46fe1a99be0c8fcfa617314ab9f6e996
humanhash: batman-jersey-bakerloo-music
File name:46fe1a99be0c8fcfa617314ab9f6e996.exe
Download: download sample
Signature Stop
Create hunting rule
File size:771'584 bytes
First seen:2024-03-19 09:40:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 530a3401076a1984b14298cfc00a780a (2 x Stop)
ssdeep 12288:5zExWbQkSZU0OCbMtKSf6fzACDJx8RGxCkoqVIF3Xl9vYWiLeFYCkja33zhn:hEUQqLtoDbqGAkfVIFV9eIMqNn
Threatray 2'183 similar samples on MalwareBazaar
TLSH T17EF40210E2D2643AE2610E7C8D9ACAF51A2BFE713D30D67F3114E53F1AF56718A22761
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 3370ecd2ccf0339a (9 x Stealc, 9 x LummaStealer, 3 x Socks5Systemz)
Reporter abuse_ch
Tags:exe Stop


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

Intelligence

File Origin
# of uploads :
1
# of downloads :
396
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d.exe
Verdict:
Malicious activity
Analysis date:
2024-03-19 09:45:28 UTC
Tags:
ransomware stop djvu loader vodkagats vidar raccoonclipper
Link:
https://app.any.run/tasks/2c0ba20c-277b-4266-9bd1-92243f49e37c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Win32.Krypt.2031.3016.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
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
DNS request
Connection attempt
Searching for synchronization primitives
Moving a file to the Program Files subdirectory
Replacing files
Query of malicious DNS domain
Connection attempt to an infection source
Sending a TCP request 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/65f95db3f074ad892e577abe/reports/c76f9915-3122-4bf7-89bc-bbaa4dc1c1f6/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d
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:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/092d93c3-31b8-4f9c-b099-d499c3a6f19f
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/1411621
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 Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, 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
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1411621 Sample: 7gRw1JCzma.exe Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 86 sdfjhuz.com 2->86 88 sajdfue.com 2->88 90 2 other IPs or domains 2->90 112 Snort IDS alert for network traffic 2->112 114 Multi AV Scanner detection for domain / URL 2->114 116 Found malware configuration 2->116 118 14 other signatures 2->118 13 7gRw1JCzma.exe 2->13         started        16 7gRw1JCzma.exe 2->16         started        18 mstsca.exe 2->18         started        20 3 other processes 2->20 signatures3 process4 signatures5 130 Detected unpacking (changes PE section rights) 13->130 132 Detected unpacking (overwrites its own PE header) 13->132 134 Writes a notice file (html or txt) to demand a ransom 13->134 144 2 other signatures 13->144 22 7gRw1JCzma.exe 1 16 13->22         started        136 Antivirus detection for dropped file 16->136 138 Multi AV Scanner detection for dropped file 16->138 140 Machine Learning detection for dropped file 16->140 26 7gRw1JCzma.exe 16->26         started        142 Injects a PE file into a foreign processes 18->142 28 mstsca.exe 18->28         started        30 7gRw1JCzma.exe 20->30         started        32 7gRw1JCzma.exe 20->32         started        34 mstsca.exe 20->34         started        process6 dnsIp7 92 api.2ip.ua 172.67.139.220, 443, 49729, 49730 CLOUDFLARENETUS United States 22->92 66 C:\Users\user\AppData\...\7gRw1JCzma.exe, PE32 22->66 dropped 36 7gRw1JCzma.exe 22->36         started        39 icacls.exe 22->39         started        41 schtasks.exe 28->41         started        file8 process9 signatures10 120 Injects a PE file into a foreign processes 36->120 43 7gRw1JCzma.exe 1 26 36->43         started        48 conhost.exe 41->48         started        process11 dnsIp12 98 sajdfue.com 200.117.13.65, 49733, 49734, 49735 TelecomArgentinaSAAR Argentina 43->98 100 sdfjhuz.com 190.218.32.182, 49732, 80 CableOndaPA Panama 43->100 78 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 43->78 dropped 80 C:\Users\user\AppData\Local\...\LOG.old, COM 43->80 dropped 82 C:\_README.txt, ASCII 43->82 dropped 84 40 other malicious files 43->84 dropped 146 Tries to harvest and steal browser information (history, passwords, etc) 43->146 148 Infects executable files (exe, dll, sys, html) 43->148 150 Modifies existing user documents (likely ransomware behavior) 43->150 50 build2.exe 43->50         started        53 build3.exe 43->53         started        file13 signatures14 process15 signatures16 102 Detected unpacking (changes PE section rights) 50->102 104 Detected unpacking (overwrites its own PE header) 50->104 106 Writes many files with high entropy 50->106 55 build2.exe 50->55         started        108 Uses schtasks.exe or at.exe to add and modify task schedules 53->108 110 Injects a PE file into a foreign processes 53->110 60 build3.exe 53->60         started        process17 dnsIp18 94 5.75.210.0, 443, 49742, 49744 HETZNER-ASDE Germany 55->94 96 steamcommunity.com 104.105.90.131, 443, 49740 AKAMAI-ASUS United States 55->96 68 C:\Users\user\AppData\...\softokn3[1].dll, PE32 55->68 dropped 70 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 55->70 dropped 72 C:\Users\user\AppData\...\mozglue[1].dll, PE32 55->72 dropped 76 11 other files (7 malicious) 55->76 dropped 122 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 55->122 124 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 55->124 126 Tries to harvest and steal ftp login credentials 55->126 128 2 other signatures 55->128 74 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 60->74 dropped 62 schtasks.exe 60->62         started        file19 signatures20 process21 process22 64 conhost.exe 62->64         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-03-19 09:41:05 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
16 of 24 (66.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3rgjb7327rybxf66evtybgi2mgusfq6crrhb4r4hspc3iict3voq._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
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6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
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a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
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bf586230320fd2bb84f1173e01abbe304392579b55e1f321ce5f60fec7087f14
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+ 2'173 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:95002d0a9d65ffced363a8f35f42a529 discovery persistence ransomware stealer
Link:
https://tria.ge/reports/240319-lnrl9shc71/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
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
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Downloads MZ/PE file
Detect Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://sajdfue.com/test2/get.php
https://steamcommunity.com/profiles/76561199654112719
https://t.me/r2d0s
Unpacked files
SH256 hash:
cc108ceb11cc0a7fa5968f0ad93088ac5225dc36180b4369532b891442909b4d
MD5 hash:
e94c7d84af64aa7ee9dc7ceaa26fa360
SHA1 hash:
541d8013bf52e9db4bb65cc39d7c5cae96fd6497
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/eba0968b-3208-4021-b142-04d8b7fef24f/
Parent samples :
8df072a5fdd3d744912ffd65970e0b8ed9d98ccb234f023a1e81fdfaed81b8f2
fc38866bc8b8cab27e524e8592c185d3876460b3f3cda7fe445276c0f4dfe336
caeecccfee0962fbe3d4fb4ab336bf3d1230b12ad0821ff66f7a2cabc289c954
6aca49f129d7eb89f198149671cfa552ddfbbc5dc40039dbadadcb7158431d61
bf586230320fd2bb84f1173e01abbe304392579b55e1f321ce5f60fec7087f14
dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d
SH256 hash:
dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d
MD5 hash:
46fe1a99be0c8fcfa617314ab9f6e996
SHA1 hash:
905a3abae321d0d87f930de5120bd5db281c4153
Link:
https://www.unpac.me/results/eba0968b-3208-4021-b142-04d8b7fef24f/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dc4c90ff7afc/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/dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d

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:DebuggerCheck__API
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: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: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 dc4c90ff7afc701b97de256780991a61a922c3c28c4e1e478793c5b42053dd5d

(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_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::EqualSid
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::ReadConsoleOutputAttribute
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::GetFileAttributesA
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen

Comments