gandcrab | d6c53d9341dda1252ada3861898840be4d669abae2b983ab9bf5259b84de7525

General

Target

d6c53d9341dda1252ada3861898840be4d669abae2b983ab9bf5259b84de7525.dll
Size

130KB
MD5

0f270db9ab9361e20058b8c6129bf30e
SHA1

ffc0baa6c0a16d9b2ff92402c909106154f15d33
SHA256

d6c53d9341dda1252ada3861898840be4d669abae2b983ab9bf5259b84de7525
SHA512

83ce2d7998fcc9f4777e075319447bd57f540fe6aa421d9cf6b8a45f1452097aecc77c257fe25883de555f03c8ab51611f64c3976de737d9738ec0c3d9dfc1cb

Score

10^/10

gandcrab backdoor ransomware

Malware Config

Extracted

Path

C:\LKFFJG-DECRYPT.txt

Ransom Note

---= GANDCRAB V5.0.4 =--- ***********************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: .LKFFJG 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/11611874332aae1b | 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/11611874332aae1b

Signatures

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\B:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\A:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe

Drops file in Program Files directory 14 IoCs

Processes:

rundll32.exe

description	ioc	process
File created	C:\Program Files\LKFFJG-DECRYPT.txt	rundll32.exe
File opened for modification	C:\Program Files\CompleteUnregister.svg	rundll32.exe
File opened for modification	C:\Program Files\HideRestart.mpp	rundll32.exe
File opened for modification	C:\Program Files\LimitMove.jtx	rundll32.exe
File opened for modification	C:\Program Files\LockConfirm.xlsx	rundll32.exe
File created	C:\Program Files\332aa9fb332aae1174.lock	rundll32.exe
File opened for modification	C:\Program Files\GetWait.pub	rundll32.exe
File opened for modification	C:\Program Files\CloseTest.mp3	rundll32.exe
File opened for modification	C:\Program Files\MergeUnregister.mpv2	rundll32.exe
File opened for modification	C:\Program Files\CompleteRequest.3gp2	rundll32.exe
File opened for modification	C:\Program Files\ExpandEnter.jpg	rundll32.exe
File opened for modification	C:\Program Files\FormatSend.vbe	rundll32.exe
File opened for modification	C:\Program Files\GetCompress.doc	rundll32.exe
File opened for modification	C:\Program Files\InitializeAssert.vssm	rundll32.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2012 2212 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2012	2212	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	rundll32.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

rundll32.exeWerFault.exe

pid	process
2212	rundll32.exe
2212	rundll32.exe
2212	rundll32.exe
2212	rundll32.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2012 WerFault.exe
Token: SeBackupPrivilege 2012 WerFault.exe
Token: SeDebugPrivilege 2012 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	2012	WerFault.exe
Token: SeBackupPrivilege	2012	WerFault.exe
Token: SeDebugPrivilege	2012	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1940 wrote to memory of 2212	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 2212	1940	rundll32.exe	rundll32.exe
PID 1940 wrote to memory of 2212	1940	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6c53d9341dda1252ada3861898840be4d669abae2b983ab9bf5259b84de7525.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6c53d9341dda1252ada3861898840be4d669abae2b983ab9bf5259b84de7525.dll,#1
2⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 684
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2012