MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 446d53cdc62a86025835e93938afeb9c1b24f28f2bade4980c01ac517b76c760. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash: 446d53cdc62a86025835e93938afeb9c1b24f28f2bade4980c01ac517b76c760
SHA3-384 hash: 04cc5b18a2737ba44f5809408b2c63bbcc7f8b36ca612e28136cf18ac4d641a27afcff390913b63fe309b3a478b4802d
SHA1 hash: e53c26847c73bb6c1191c46cf8cdcdfac7d33e87
MD5 hash: 4e5b7e63258934004c64c069efc5205e
humanhash: three-high-red-harry
File name:4e5b7e63258934004c64c069efc5205e.exe
Download: download sample
Signature Stop
File size:772'096 bytes
First seen:2021-10-06 09:30:01 UTC
Last seen:2021-10-06 11:13:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f04f32f42fdfa69095db11dda219012b (11 x RaccoonStealer, 4 x ArkeiStealer, 2 x RedLineStealer)
ssdeep 12288:UnoRM66qCDpEam6NjPyoCTOo5yezrc+x4WchrN8AnkpOiDcL88mRTa/55+aFViGk:eo76qAEIN7yoCbbWW+rdjyA8na/5p5F2
Threatray 760 similar samples on MalwareBazaar
TLSH T198F40200B3E0C039F4B713FA4975D3B5A51D78B16B6481CBB2C51AEA9B352E0AD31B97
File icon (PE):PE icon
dhash icon e0e8e8e8aa66a499 (32 x RaccoonStealer, 23 x RedLineStealer, 14 x ArkeiStealer)
Reporter abuse_ch
Tags:exe Ransomware Stop

Intelligence


File Origin
# of uploads :
2
# of downloads :
432
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4e5b7e63258934004c64c069efc5205e.exe
Verdict:
Suspicious activity
Analysis date:
2021-10-06 09:59:18 UTC
Tags:
n/a

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
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Malware family:
STOP Ransomware
Verdict:
Malicious
Result
Threat name:
Clipboard Hijacker Djvu Vidar
Detection:
malicious
Classification:
rans.spre.troj.spyw.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
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
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 (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 497847 Sample: u6Yj1SceIA.exe Startdate: 06/10/2021 Architecture: WINDOWS Score: 100 40 mas.to 88.99.75.82, 443, 49766 HETZNER-ASDE Germany 2->40 42 65.108.80.190, 49767, 80 ALABANZA-BALTUS United States 2->42 44 2 other IPs or domains 2->44 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Multi AV Scanner detection for domain / URL 2->58 60 Antivirus detection for URL or domain 2->60 62 11 other signatures 2->62 9 u6Yj1SceIA.exe 2->9         started        12 u6Yj1SceIA.exe 2->12         started        signatures3 process4 signatures5 64 Detected unpacking (overwrites its own PE header) 9->64 66 Contains functionality to inject code into remote processes 9->66 68 Writes many files with high entropy 9->68 14 u6Yj1SceIA.exe 1 17 9->14         started        70 Multi AV Scanner detection for dropped file 12->70 72 Machine Learning detection for dropped file 12->72 74 Injects a PE file into a foreign processes 12->74 process6 dnsIp7 52 api.2ip.ua 77.123.139.190, 443, 49756, 49757 VOLIA-ASUA Ukraine 14->52 36 C:\Users\user\AppData\...\u6Yj1SceIA.exe, PE32 14->36 dropped 38 C:\Users\...\u6Yj1SceIA.exe:Zone.Identifier, ASCII 14->38 dropped 18 u6Yj1SceIA.exe 14->18         started        21 icacls.exe 14->21         started        file8 process9 signatures10 54 Injects a PE file into a foreign processes 18->54 23 u6Yj1SceIA.exe 1 25 18->23         started        process11 dnsIp12 46 securebiz.org 211.229.47.232, 49758, 49761, 80 KIXS-AS-KRKoreaTelecomKR Korea Republic of 23->46 48 znpst.top 186.6.215.82, 49759, 80 CompaniaDominicanadeTelefonosSADO Dominican Republic 23->48 50 api.2ip.ua 23->50 28 C:\Users\user\AppData\...\appsconversions.txt, DOS 23->28 dropped 30 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 23->30 dropped 32 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 23->32 dropped 34 383 other files (362 malicious) 23->34 dropped 76 Infects executable files (exe, dll, sys, html) 23->76 78 Modifies existing user documents (likely ransomware behavior) 23->78 file13 signatures14
Threat name:
Win32.Ransomware.StopCrypt
Status:
Malicious
First seen:
2021-10-05 19:30:56 UTC
AV detection:
25 of 45 (55.56%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar discovery persistence ransomware spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
Vidar
Unpacked files
SH256 hash:
70149b3d34940262aa114984733fe4567dd7745bd82792e858ea78605b88fe9f
MD5 hash:
215f87eb40c9657d1b3f03cbee80691b
SHA1 hash:
1a245603014ffe8338f2e061522892241178512a
Detections:
win_stop_auto
SH256 hash:
446d53cdc62a86025835e93938afeb9c1b24f28f2bade4980c01ac517b76c760
MD5 hash:
4e5b7e63258934004c64c069efc5205e
SHA1 hash:
e53c26847c73bb6c1191c46cf8cdcdfac7d33e87
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
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_stop_auto
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 446d53cdc62a86025835e93938afeb9c1b24f28f2bade4980c01ac517b76c760

(this sample)

  
Delivery method
Distributed via web download

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