Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
28/11/2024, 19:53
General
- Target GandCrab.exe
- Size 291KB
- Sample241128-ymgrwstnfj
- SHA256 bfb9db791b8250ffa8ebc48295c5dbbca757a5ed3bbb01de12a871b5cd9afd5a
Score
10/10
Malware Config
Extracted
Path
-
C:\$Recycle.Bin\NGONKAZX-MANUAL.txt
-
gandcrab
Ransom Note
- ---= GANDCRAB V5.2 =--- ***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED*********************** *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE ARE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .NGONKAZX The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/584583a3d2d94b20 | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- 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 ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
URLs
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http://gandcrabmfe6mnef.onion/584583a3d2d94b20
Signatures
- Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
- Gandcrab family
- Renames multiple (339) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
- Drops startup file 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Drops file in Program Files directory 39 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\GandCrab.exe"C:\Users\Admin\AppData\Local\Temp\GandCrab.exe"1⤵
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c vssadmin delete shadows /all /quiet2⤵
- System Location Discovery: System Language Discovery
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 13962⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 212 -ip 2121⤵
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
NGONKAZX-MANUAL.txt
memory/212-1-0x0000000005640000-0x0000000005740000-memory.dmp
memory/212-2-0x0000000000400000-0x000000000041B000-memory.dmp
memory/212-867-0x0000000005640000-0x0000000005740000-memory.dmp
memory/212-869-0x0000000000400000-0x000000000041B000-memory.dmp
memory/212-868-0x0000000000400000-0x00000000052B3000-memory.dmp
memory/212-872-0x0000000000400000-0x000000000041B000-memory.dmp
memory/212-871-0x0000000000400000-0x00000000052B3000-memory.dmp