Analysis
- max time kernel
135s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
08/06/2023, 03:20
General
- Target quantum_locker/quantum_locker.exe
- Size 75KB
- Sample230608-dv79labe29
- SHA256 b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192
Score
10/10
Malware Config
Extracted
Path
-
C:\Users\Admin\Contacts\README_TO_DECRYPT.html
-
quantum
Ransom Note
- <html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <b> <pre> 9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c </pre> </b> <hr/> This message contains an information how to fix the troubles you've got with your network.<br><br> Files on the workstations in your network were encrypted and any your attempt to change, decrypt or rename them could destroy the content.<br> The only way to get files back is a decryption with Key, provided by the Quantum Locker.<br><br> During the period your network was under our control, we downloaded a huge volume of information.<br> Now it is stored on our servers with high-secure access. This information contains a lot of sensitive, private and personal data.<br> Publishing of such data will cause serious consequences and even business disruption.<br><br> It's not a threat, on the contrary - it's a manual how to get a way out.<br> Quantum team doesn't aim to damage your company, our goals are only financial.<br><br> After a payment you'll get network decryption, full destruction of downloaded data, information about your network vulnerabilities and penetration points.<br> If you decide not to negotiate, in 48 hours the fact of the attack and all your information will be posted on our site and will be promoted among dozens of cyber forums, news agencies, websites etc.<br><br> To contact our support and start the negotiations, please visit our support chat.<br> It is simple, secure and you can set a password to avoid intervention of unauthorised persons.<br> <a href="http://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c">http://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c</a> <ul> <li>Password field should be blank for the first login. <li>Note that this server is available via Tor browser only. </ul> P.S. How to get TOR browser - see at https://www.torproject.org </body> </html>
Signatures
- Quantum Ransomware
A rebrand of the MountLocker ransomware first seen in August 2021.
- Modifies extensions of user files 1 IoCs
Ransomware generally changes the extension on encrypted files.
- Drops desktop.ini file(s) 25 IoCs
- Modifies registry class 5 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\quantum_locker\quantum_locker.exe"C:\Users\Admin\AppData\Local\Temp\quantum_locker\quantum_locker.exe"1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E56B626.bat" "C:\Users\Admin\AppData\Local\Temp\quantum_locker\quantum_locker.exe""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\quantum_locker\quantum_locker.exe"3⤵
- Views/modifies file attributes
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
0E56B626.bat
README_TO_DECRYPT.html