gandcrab | 862aa8d1a4eee2e5c94c1b566c2795f5586c88a42e4e3e4db8f200f7179b5816

General

Target

2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
Size

145KB
MD5

f677bea9334f32eff520b03f77c537ab
SHA1

1da25a7d7c712eb06487637627faa26b1ddc3c89
SHA256

862aa8d1a4eee2e5c94c1b566c2795f5586c88a42e4e3e4db8f200f7179b5816
SHA512

c843faf1dfbffc200f90c9015c89724b225772aa5a7f0e824af1d5a3fab24d9f246c7f4300a07755dceeffad66757d06973040aca33e17865406c34f0cc8c2e4
SSDEEP

3072:+YHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:+yOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4960-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4960-4-0x0000000000400000-0x0000000000428000-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/4960-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/4960-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4960-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/4960-4-0x0000000000400000-0x0000000000428000-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:

2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\gycjgvmeezl = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe"	2024-04-22_f677bea9334f32eff520b03f77c537ab_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:

2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\A:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\E:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\R:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\Z:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\X:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\Y:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\K:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\L:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\M:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\O:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\T:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\U:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\V:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\W:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\B:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\G:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\H:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\J:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\N:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\S:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\I:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\P:	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
File opened (read-only)	\??\Q:	2024-04-22_f677bea9334f32eff520b03f77c537ab_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:

2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

pid	process
4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe

description	pid	process	target process
PID 4960 wrote to memory of 2392	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 2392	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 2392	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 540	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 540	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 540	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3384	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3384	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3384	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 2488	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 2488	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 2488	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4036	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4036	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4036	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3704	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3704	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3704	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 624	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 624	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 624	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3544	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3544	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3544	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4652	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4652	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4652	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 1604	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 1604	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 1604	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3028	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3028	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 3028	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4980	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4980	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe
PID 4960 wrote to memory of 4980	4960	2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-22_f677bea9334f32eff520b03f77c537ab_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_f677bea9334f32eff520b03f77c537ab_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:4960

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2392

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:540

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3384

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

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4036

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3704

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:624

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3544

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4652

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1604

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3028

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4960-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4960-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads