gandcrab | 3b5b9581ba0315b435f7a557c74251226470bec40ccaf7ebd2591b958d56ddf8

General

Target

2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
Size

145KB
MD5

c6c2d6b976eaa84411e703e5a6bf5197
SHA1

7bc53c38e2c3cd86b4a5471517bbcd2e1cafe05c
SHA256

3b5b9581ba0315b435f7a557c74251226470bec40ccaf7ebd2591b958d56ddf8
SHA512

9bc34733da338418deb46c2536d2f583222f3d7e169163c28e300447bcc43a9d466f892e099d01603757404511b343892852bf545079229aca90eaffd897dab9
SSDEEP

3072:IYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:IyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1720-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/1720-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

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

Detects ransomware indicator 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1720-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/1720-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1720-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/1720-4-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ximtwkcowko = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe"	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

Enumerates connected drives 3 TTPs 23 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:

2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\W:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.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:

2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

pid	process
1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe

description	pid	process	target process
PID 1720 wrote to memory of 1420	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1420	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1420	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2116	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2116	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2116	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 4820	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 4820	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 4820	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1848	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1848	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1848	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2648	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2648	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2648	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1392	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1392	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1392	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3780	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3780	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3780	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3560	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3560	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3560	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2072	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2072	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2072	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1508	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1508	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 1508	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 4524	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 4524	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 4524	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2156	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2156	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2156	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3632	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3632	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 3632	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 60	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 60	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 60	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2364	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2364	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe
PID 1720 wrote to memory of 2364	1720	2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_c6c2d6b976eaa84411e703e5a6bf5197_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1420

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2116

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4820

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1848

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2648

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:1392

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3780

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3560

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2072

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1508

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4524

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2156

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3632

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:60

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2364

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1720-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1720-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads