gandcrab | 9ff8db4141ece0167605fa4e78394a9226f53de0b8ae55438cb74e53a2e3c301

General

Target

2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
Size

145KB
MD5

137c86403a98502e8f6c24303f1f66b7
SHA1

af62de7085a48641ffb63a6d7c33e5bd594c2ac9
SHA256

9ff8db4141ece0167605fa4e78394a9226f53de0b8ae55438cb74e53a2e3c301
SHA512

1f3be43319e8e5a647b9d214f072998972c8e0e5a3eaac0401f6487759a2bd542b3f06b95fa74030dd0907ed04554b031642ab6ae97f6a575ed0fd76f1883be7
SSDEEP

3072:JYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:JyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4620-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4620-4-0x0000000000400000-0x0000000000428000-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/4620-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/4620-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4620-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/4620-4-0x0000000000400000-0x0000000000428000-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:

2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ananlfvxiuf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe"	2024-03-31_137c86403a98502e8f6c24303f1f66b7_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:

2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\B:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-31_137c86403a98502e8f6c24303f1f66b7_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:

2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

pid	process
4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe

description	pid	process	target process
PID 4620 wrote to memory of 2280	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2280	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2280	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4244	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4244	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4244	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4792	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4792	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4792	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2156	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2156	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2156	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 5076	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 5076	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 5076	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2848	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2848	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2848	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3412	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3412	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3412	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 1084	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 1084	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 1084	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3888	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3888	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3888	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3800	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3800	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3800	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4020	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4020	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4020	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3460	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3460	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 3460	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4036	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4036	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4036	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4988	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4988	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 4988	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2044	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2044	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe
PID 4620 wrote to memory of 2044	4620	2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-31_137c86403a98502e8f6c24303f1f66b7_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-31_137c86403a98502e8f6c24303f1f66b7_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:4620

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2280

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4244

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4792

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

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:5076

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2848

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3412

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:1084

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3888

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3800

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4020

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3460

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

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4988

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2044

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2808 --field-trial-handle=2268,i,8796662530135712346,11409037572378858775,262144 --variations-seed-version /prefetch:8
1⤵
PID:1352

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/4620-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4620-4-0x0000000000400000-0x0000000000428000-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