gandcrab | d36b5d9b7ee9e6599afa1d95a37c516383ad23195b5507e8b22fcb22d0f3f282

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 06:33

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General

Target

2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
Size

145KB
MD5

912343134d0afef2f3fae04844c610dc
SHA1

49931dc1a0f5b0bf7b01c0feb42b78be679583fe
SHA256

d36b5d9b7ee9e6599afa1d95a37c516383ad23195b5507e8b22fcb22d0f3f282
SHA512

53ad4edb298e3ada7ad0d9f7257552a8a51b5856342030a300911e5d77230afa08a2c4270aaa42cf9b3c58df23a924ed8cecefead042055e147bd6cae7f0253a
SSDEEP

3072:jYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:jyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1276-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/1276-4-0x0000000000400000-0x0000000000428000-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/1276-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/1276-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1276-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/1276-4-0x0000000000400000-0x0000000000428000-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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ngrcxgjissb = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe"	2024-03-12_912343134d0afef2f3fae04844c610dc_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)	\??\I:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-12_912343134d0afef2f3fae04844c610dc_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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 4476	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	91
PID 1276 wrote to memory of 4476	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	91
PID 1276 wrote to memory of 4476	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	91
PID 1276 wrote to memory of 4532	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	100
PID 1276 wrote to memory of 4532	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	100
PID 1276 wrote to memory of 4532	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	100
PID 1276 wrote to memory of 4820	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	103
PID 1276 wrote to memory of 4820	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	103
PID 1276 wrote to memory of 4820	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	103
PID 1276 wrote to memory of 4016	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	107
PID 1276 wrote to memory of 4016	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	107
PID 1276 wrote to memory of 4016	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	107
PID 1276 wrote to memory of 4704	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	109
PID 1276 wrote to memory of 4704	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	109
PID 1276 wrote to memory of 4704	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	109
PID 1276 wrote to memory of 436	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	111
PID 1276 wrote to memory of 436	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	111
PID 1276 wrote to memory of 436	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	111
PID 1276 wrote to memory of 748	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	114
PID 1276 wrote to memory of 748	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	114
PID 1276 wrote to memory of 748	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	114
PID 1276 wrote to memory of 1768	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	116
PID 1276 wrote to memory of 1768	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	116
PID 1276 wrote to memory of 1768	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	116
PID 1276 wrote to memory of 1080	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	119
PID 1276 wrote to memory of 1080	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	119
PID 1276 wrote to memory of 1080	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	119
PID 1276 wrote to memory of 2096	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	124
PID 1276 wrote to memory of 2096	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	124
PID 1276 wrote to memory of 2096	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	124
PID 1276 wrote to memory of 3516	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	131
PID 1276 wrote to memory of 3516	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	131
PID 1276 wrote to memory of 3516	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	131
PID 1276 wrote to memory of 2232	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	133
PID 1276 wrote to memory of 2232	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	133
PID 1276 wrote to memory of 2232	1276	2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe	133

C:\Users\Admin\AppData\Local\Temp\2024-03-12_912343134d0afef2f3fae04844c610dc_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_912343134d0afef2f3fae04844c610dc_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:1276
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4532
- 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:4016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:436
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1080
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2096
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3516
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2232

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/1276-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1276-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download