gandcrab | 7536afd9f5d7fafc5e3ac64f5911737b8438a73f499d991f2959eae41930e23c

General

Target

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
Size

167KB
MD5

e2a09a09f0fa4d13dd3fe8886f40a089
SHA1

1d86f84cd12514c935c4964819431124e1174ff6
SHA256

7536afd9f5d7fafc5e3ac64f5911737b8438a73f499d991f2959eae41930e23c
SHA512

b0936942b0b4b6ddca459f7f553d9e6967017aec8bc92ae16a3f78cd15d5cb1a037eedce15eae455774b6dabb9c55d0aed01adfb6a89f0ed723a29511ebc0da2
SSDEEP

3072:GYHVHd2NpMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpek:GyRqqDL6oREzZpl

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab
behavioral1/memory/1728-4-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\fghsduhnjrg = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe"	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_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:

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\Q:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\B:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral1/memory/1728-4-0x0000000000400000-0x000000000042C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 15 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

Processes:

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exenslookup.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_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
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

Processes:

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

pid process

1728 2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
1728 2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

pid	process
1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

description	pid	process	target process
PID 1728 wrote to memory of 2140	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2140	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2140	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2140	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2728	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2728	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2728	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2728	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3040	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3040	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3040	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3040	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2768	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2768	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2768	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2768	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2240	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2240	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2240	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2240	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2576	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2576	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2576	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 2576	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1624	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1624	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1624	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1624	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 460	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 460	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 460	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 460	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 772	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 772	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 772	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 772	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1884	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1884	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1884	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1884	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1276	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1276	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1276	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1276	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3020	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3020	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3020	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 3020	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1392	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1392	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1392	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1392	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1152	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1152	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1152	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe
PID 1728 wrote to memory of 1152	1728	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_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:1728
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:460
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1276
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1392
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1152

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1728-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1728-4-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads