General
- Target BQT.exe
- Size 8.5MB
- Sample260727-z13f7asvas
- SHA256 9600db537e27db88ed2eca3be0ffab35cdb22a86a6dbb048d8deaf8f56944822
- MD5 f558a0bcd20e01e46551a491c66114e8
- SHA1 5befee1210165646b4bb6574663f01ace27c630e
- SHA512 953d9aaa3c49b986c5986b717f9d9a9ed28c67f0435906d750a2b595df1852f3e5e581da46788227690c8a65b496e8d2db8f9983e20a9282093e524da497c620
- SSDEEP 98304:1g3yi6usbCZCvohIIXhEFzSoGKzzL6wmaOreiF//Ydspy+DlL:1GkuOCQohOaHYa0q
- TLSH T1C796397BE16610D8C59B8174C25BB2B1BD30B4B50830B96EEE60C776AF61E601E7EF11
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
BQT.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
BQT.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
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F:\$RECYCLE.BIN\S-1-5-21-1074038928-2032447174-945360078-1000\README_TO_DECRYPT.txt
- YOUR FILES ARE ENCRYPTED! your files are not deleted but they are hidden to see them use cmd.exe and dir /a To recover your files, send 10 xmr to the following address:89RQN2EUmiX6vL7nTv3viqUAgbDpN4ab329zPCEgbceQJuS233uye4eXtYk3MXAtVoKNMmzgVrxXphLZbJPtearY7QVuApr After payment, send your HWID and transaction ID to: [email protected] we send you a decryptor and key DO NOT try to decrypt files yourself or use third-party tools, this will lead to permanent data loss.
Targets
-
- Target BQT.exe
- Size 8.5MB
- SHA256 9600db537e27db88ed2eca3be0ffab35cdb22a86a6dbb048d8deaf8f56944822
- MD5 f558a0bcd20e01e46551a491c66114e8
- SHA1 5befee1210165646b4bb6574663f01ace27c630e
- SHA512 953d9aaa3c49b986c5986b717f9d9a9ed28c67f0435906d750a2b595df1852f3e5e581da46788227690c8a65b496e8d2db8f9983e20a9282093e524da497c620
- SSDEEP 98304:1g3yi6usbCZCvohIIXhEFzSoGKzzL6wmaOreiF//Ydspy+DlL:1GkuOCQohOaHYa0q
- TLSH T1C796397BE16610D8C59B8174C25BB2B1BD30B4B50830B96EEE60C776AF61E601E7EF11
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Family: BQTLock
BQTLock is a cross-platform ransomware that operates under a Ransomware-as-a-Service model.
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Renames multiple (188) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Sets desktop wallpaper using registry
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Suspicious use of SetThreadContext
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1