Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240508-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:\$RECYCLE.BIN\S-1-5-21-268080393-3149932598-1824759070-1000\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/13091be722ae110
| 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/13091be722ae110
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 (261) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 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 23 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 2 IoCs
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Suspicious use of AdjustPrivilegeToken 43 IoCs
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Suspicious use of WriteProcessMemory 12 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⤵
- 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⤵
- Deletes itself
- 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
Loading Replay Monitor...
Downloads
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F:\$RECYCLE.BIN\S-1-5-21-268080393-3149932598-1824759070-1000\KRAB-DECRYPT.txtFilesize
7KB
MD5661f5bbb099634da8ec8907a895bcbb0
SHA1f21634ec388e9a31ee6a1a27675c934da137fc98
SHA2566ba37a63e52281a5795cf52238e0d93deb250b177b9f5ad6f04a896557e3cb9d
SHA5129bc7276980c1a0fa4d996e2020c445cb021cb54efc780f746f36cb063af4ac3494fd1d1385eb2018d4b5fa3b0171d1cc2ecd75f34e5b9c66a17b8a1838b6966c