gandcrab | a08e29e51daae6af29360ab06b1fd6340f4b5503c2eba84d992a96736b72b895

Analysis

max time kernel
140s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2024 16:45

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General

Target

2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
Size

145KB
MD5

eeee2d538c7b12ef7326dc6c8f6a8b88
SHA1

62d187d4d94ab4bb5e5a8cc0f3fec6e0307630c1
SHA256

a08e29e51daae6af29360ab06b1fd6340f4b5503c2eba84d992a96736b72b895
SHA512

1b3f20d957e0414628fdf51d9c2e76db79d8f3e3883c666a362c5b5d1b68b1cff6c0ff9397e90516cac0c3b517f258be616d0154c4604118ee2115f7d9dea014
SSDEEP

3072:1YHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:1yOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/3632-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/3632-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

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

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral2/memory/3632-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/3632-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3632-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/3632-4-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\tyejmoqqyow = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe"	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_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

description	ioc	Process
File opened (read-only)	\??\H:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 2164	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	97
PID 3632 wrote to memory of 2164	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	97
PID 3632 wrote to memory of 2164	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	97
PID 3632 wrote to memory of 3100	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	106
PID 3632 wrote to memory of 3100	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	106
PID 3632 wrote to memory of 3100	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	106
PID 3632 wrote to memory of 3576	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	111
PID 3632 wrote to memory of 3576	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	111
PID 3632 wrote to memory of 3576	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	111
PID 3632 wrote to memory of 3600	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	115
PID 3632 wrote to memory of 3600	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	115
PID 3632 wrote to memory of 3600	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	115
PID 3632 wrote to memory of 4920	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	117
PID 3632 wrote to memory of 4920	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	117
PID 3632 wrote to memory of 4920	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	117
PID 3632 wrote to memory of 2668	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	119
PID 3632 wrote to memory of 2668	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	119
PID 3632 wrote to memory of 2668	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	119
PID 3632 wrote to memory of 2544	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	122
PID 3632 wrote to memory of 2544	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	122
PID 3632 wrote to memory of 2544	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	122
PID 3632 wrote to memory of 960	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	125
PID 3632 wrote to memory of 960	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	125
PID 3632 wrote to memory of 960	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	125
PID 3632 wrote to memory of 2396	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	127
PID 3632 wrote to memory of 2396	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	127
PID 3632 wrote to memory of 2396	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	127
PID 3632 wrote to memory of 4956	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	131
PID 3632 wrote to memory of 4956	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	131
PID 3632 wrote to memory of 4956	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	131
PID 3632 wrote to memory of 1712	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	133
PID 3632 wrote to memory of 1712	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	133
PID 3632 wrote to memory of 1712	3632	2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe	133

C:\Users\Admin\AppData\Local\Temp\2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_eeee2d538c7b12ef7326dc6c8f6a8b88_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:3632
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2164
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3576
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3600
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4920
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2668
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2544
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:960
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4956
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1712

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=4088 --field-trial-handle=2256,i,18272763564106695635,11201593968620719822,262144 --variations-seed-version /prefetch:8
1⤵
PID:1740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3632-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3632-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download