Analysis
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max time kernel
149s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
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submitted
19-06-2024 19:50
General
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Target
2024-06-19_f013862c115bb83078c68b33aa5d392e_gandcrab_karagany.exe
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Size
91KB
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MD5
f013862c115bb83078c68b33aa5d392e
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SHA1
7acc6e8a7417b7ee51af4b678aec74d0813ad6b6
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SHA256
3bf57e3d096aa28e1783e698fe1098ebb97fbe3ffae6dfd032df5a987f61c17d
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SHA512
1fdc5afafa284e52a1db5fcc7fbeeccefbf63526ced7bb02312cfbaeaae3347ae17757d0dc7c68c48d9be20b8b3b8e80fbf58c17fa682ba15f8154f9d820ced7
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SSDEEP
1536:WGdg6A8xXaHuX39Ev8hGijIa7DdfQZblriWU8nFXOsWjcdS6ItKT0S:JZqCZjIGmrxrJItKT0S
Score
10/10
Malware Config
Extracted
Path
F:\KRAB-DECRYPT.txt
Ransom Note
---= GANDCRAB V4 =---
Attention!
All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB
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/565eddf87266000d
| 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
http://gandcrabmfe6mnef.onion/565eddf87266000d
Signatures
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Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (260) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 2 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in Program Files directory 21 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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Delays execution with timeout.exe 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 45 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-19_f013862c115bb83078c68b33aa5d392e_gandcrab_karagany.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-19_f013862c115bb83078c68b33aa5d392e_gandcrab_karagany.exe"1⤵
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout -c 5 & del "C:\Users\Admin\AppData\Local\Temp\2024-06-19_f013862c115bb83078c68b33aa5d392e_gandcrab_karagany.exe" /f /q2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout -c 53⤵
- Delays execution with timeout.exe
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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F:\KRAB-DECRYPT.txtFilesize
7KB
MD574675f26024b6c1b6d6c46cdf8c2ed12
SHA1c3467bd1a4d8ffc0c58294f880916d8ce8b27e27
SHA256ede1eb7ace44bbecc7525c66f68d59952a97c43b5572b79db7d96fedcc210bec
SHA512f2aa279ad34f6dc7a0f0ce990070d29ff8c7b2ab0d00a5c2ae1a0043b95182e6855b06531ed1be032badba49f57186e0f1074e9895b1930e266d642c6c321f6c