gandcrab | 5a188b6d78a51b5752a9f4727afdc4f4ffe7f0cc3fc1c688ed7a151b652ab75c

General

Target

2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
Size

145KB
MD5

a87f1204983e000d81b95373e1a82243
SHA1

da00adeb7cf9b4d7fad9b81e32f5486825031780
SHA256

5a188b6d78a51b5752a9f4727afdc4f4ffe7f0cc3fc1c688ed7a151b652ab75c
SHA512

42fdfc98d647b1643f14633bdb39ce5e4353996a2d63e3bd70852bfafe82733f573008f45863ebd1cff487cde1dd0cd21015df04936e837d2a7dc60edaacc7ec
SSDEEP

3072:UYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:UyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3176-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/3176-4-0x0000000000400000-0x0000000000428000-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/3176-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/3176-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3176-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/3176-4-0x0000000000400000-0x0000000000428000-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:

2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\dtudbooddom = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe"	2024-03-28_a87f1204983e000d81b95373e1a82243_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:

2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\B:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-28_a87f1204983e000d81b95373e1a82243_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:

2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

pid	process
3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe

description	pid	process	target process
PID 3176 wrote to memory of 3060	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3060	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3060	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 640	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 640	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 640	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1636	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1636	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1636	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2736	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2736	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2736	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3944	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3944	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3944	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2932	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2932	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2932	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2992	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2992	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2992	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3968	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3968	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 3968	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 4572	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 4572	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 4572	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1076	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1076	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1076	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2488	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2488	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2488	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2612	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2612	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 2612	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1924	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1924	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 1924	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 764	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 764	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe
PID 3176 wrote to memory of 764	3176	2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-28_a87f1204983e000d81b95373e1a82243_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_a87f1204983e000d81b95373e1a82243_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:3176

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3060

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:640

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:1636

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2736

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3944

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2932

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2992

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3968

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4572

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1076

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2488

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2612

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1924

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:764

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

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Downloads

memory/3176-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3176-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads