gandcrab | c9dc0ea52ffd6d9edf119cd22d63b93e48cc156bafe98f3257c2bf3575e70948

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 03:04

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General

Target

2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
Size

167KB
MD5

5b5b3d1037c61533192b7a83001de99e
SHA1

eb8836b5f0df1c22d060797a70bbf57c827fbdc0
SHA256

c9dc0ea52ffd6d9edf119cd22d63b93e48cc156bafe98f3257c2bf3575e70948
SHA512

70c4b66e772e6d74e5095f37b7b1f9f385d9e6d025ae455e3195450a88ce88262815b14092fb4158cf9935f376ff3e38df4ac93bef99f940a8d04dc83aebe81c
SSDEEP

3072:zYHVHd2NFMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZped:zyZqqDL6oREzZpK

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab
behavioral1/memory/2260-4-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor 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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\fyusmsuwtjo = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe"	2024-10-15_5b5b3d1037c61533192b7a83001de99e_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)	\??\V:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\Y:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\Z:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\K:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\O:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\S:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\U:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\J:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\Q:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\R:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\T:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\W:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\X:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\G:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\H:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\M:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\N:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\L:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\P:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\A:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\B:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\E:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
File opened (read-only)	\??\I:	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral1/memory/2260-4-0x0000000000400000-0x000000000042C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.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	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2244	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	31
PID 2260 wrote to memory of 2244	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	31
PID 2260 wrote to memory of 2244	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	31
PID 2260 wrote to memory of 2244	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	31
PID 2260 wrote to memory of 2560	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	34
PID 2260 wrote to memory of 2560	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	34
PID 2260 wrote to memory of 2560	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	34
PID 2260 wrote to memory of 2560	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	34
PID 2260 wrote to memory of 3064	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	36
PID 2260 wrote to memory of 3064	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	36
PID 2260 wrote to memory of 3064	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	36
PID 2260 wrote to memory of 3064	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	36
PID 2260 wrote to memory of 1112	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	38
PID 2260 wrote to memory of 1112	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	38
PID 2260 wrote to memory of 1112	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	38
PID 2260 wrote to memory of 1112	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	38
PID 2260 wrote to memory of 2952	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	40
PID 2260 wrote to memory of 2952	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	40
PID 2260 wrote to memory of 2952	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	40
PID 2260 wrote to memory of 2952	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	40
PID 2260 wrote to memory of 2912	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	42
PID 2260 wrote to memory of 2912	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	42
PID 2260 wrote to memory of 2912	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	42
PID 2260 wrote to memory of 2912	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	42
PID 2260 wrote to memory of 304	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	44
PID 2260 wrote to memory of 304	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	44
PID 2260 wrote to memory of 304	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	44
PID 2260 wrote to memory of 304	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	44
PID 2260 wrote to memory of 264	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	46
PID 2260 wrote to memory of 264	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	46
PID 2260 wrote to memory of 264	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	46
PID 2260 wrote to memory of 264	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	46
PID 2260 wrote to memory of 1760	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	49
PID 2260 wrote to memory of 1760	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	49
PID 2260 wrote to memory of 1760	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	49
PID 2260 wrote to memory of 1760	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	49
PID 2260 wrote to memory of 772	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	51
PID 2260 wrote to memory of 772	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	51
PID 2260 wrote to memory of 772	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	51
PID 2260 wrote to memory of 772	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	51
PID 2260 wrote to memory of 1416	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	53
PID 2260 wrote to memory of 1416	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	53
PID 2260 wrote to memory of 1416	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	53
PID 2260 wrote to memory of 1416	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	53
PID 2260 wrote to memory of 1056	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	55
PID 2260 wrote to memory of 1056	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	55
PID 2260 wrote to memory of 1056	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	55
PID 2260 wrote to memory of 1056	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	55
PID 2260 wrote to memory of 972	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	57
PID 2260 wrote to memory of 972	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	57
PID 2260 wrote to memory of 972	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	57
PID 2260 wrote to memory of 972	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	57
PID 2260 wrote to memory of 1516	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	59
PID 2260 wrote to memory of 1516	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	59
PID 2260 wrote to memory of 1516	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	59
PID 2260 wrote to memory of 1516	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	59
PID 2260 wrote to memory of 1372	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	61
PID 2260 wrote to memory of 1372	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	61
PID 2260 wrote to memory of 1372	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	61
PID 2260 wrote to memory of 1372	2260	2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe	61

C:\Users\Admin\AppData\Local\Temp\2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_5b5b3d1037c61533192b7a83001de99e_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1112
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:304
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:264
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1416
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1056
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1516
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1372

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2260-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2260-4-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download