gandcrab | b384c4c92e1742eadf3aca0c31b5437b921f8def2677a102f81025f4d571a333

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 18:36

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General

Target

2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
Size

74KB
MD5

34389f7d33dcad9bfc872f5c663e37de
SHA1

31d94fe4ae696802cbfcaf1f4dbf88f9c4ab615b
SHA256

b384c4c92e1742eadf3aca0c31b5437b921f8def2677a102f81025f4d571a333
SHA512

429d15fa7ce0c49aa22d2186e0ef8002f6e3f5dc56bf77e38fffc72d80a670ce7b636bddf9ebeafd10ae6dc3d46db1cc1e8002517b8bd478a6fc5762ba90ca95
SSDEEP

1536:T555555555555pmgSeGDjtQhnwmmB0yJMqqU+2bbbAV2/S2mr3IdE8mne0Avu5ry:UMSjOnrmBxMqqDL2/mr3IdE8we0Avu5h

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Extracted

Family

gandcrab

http://gdcbghvjyqy7jclk.onion.top/

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/224-0-0x0000000000CD0000-0x0000000000CE6000-memory.dmp	family_gandcrab
behavioral2/memory/224-4-0x0000000000CD0000-0x0000000000CE6000-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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\rbxjgufcrdf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe"	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_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)	\??\J:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\G:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe

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	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	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_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

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	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 940	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	84
PID 224 wrote to memory of 940	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	84
PID 224 wrote to memory of 940	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	84
PID 224 wrote to memory of 3940	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	86
PID 224 wrote to memory of 3940	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	86
PID 224 wrote to memory of 3940	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	86
PID 224 wrote to memory of 1748	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	95
PID 224 wrote to memory of 1748	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	95
PID 224 wrote to memory of 1748	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	95
PID 224 wrote to memory of 2012	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	98
PID 224 wrote to memory of 2012	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	98
PID 224 wrote to memory of 2012	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	98
PID 224 wrote to memory of 888	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	101
PID 224 wrote to memory of 888	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	101
PID 224 wrote to memory of 888	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	101
PID 224 wrote to memory of 3644	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	103
PID 224 wrote to memory of 3644	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	103
PID 224 wrote to memory of 3644	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	103
PID 224 wrote to memory of 1720	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	105
PID 224 wrote to memory of 1720	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	105
PID 224 wrote to memory of 1720	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	105
PID 224 wrote to memory of 3340	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	107
PID 224 wrote to memory of 3340	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	107
PID 224 wrote to memory of 3340	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	107
PID 224 wrote to memory of 4972	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	109
PID 224 wrote to memory of 4972	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	109
PID 224 wrote to memory of 4972	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	109
PID 224 wrote to memory of 3056	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	111
PID 224 wrote to memory of 3056	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	111
PID 224 wrote to memory of 3056	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	111
PID 224 wrote to memory of 468	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	113
PID 224 wrote to memory of 468	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	113
PID 224 wrote to memory of 468	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	113
PID 224 wrote to memory of 2776	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	115
PID 224 wrote to memory of 2776	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	115
PID 224 wrote to memory of 2776	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	115
PID 224 wrote to memory of 1932	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	117
PID 224 wrote to memory of 1932	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	117
PID 224 wrote to memory of 1932	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	117
PID 224 wrote to memory of 3996	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	119
PID 224 wrote to memory of 3996	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	119
PID 224 wrote to memory of 3996	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	119
PID 224 wrote to memory of 2440	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	121
PID 224 wrote to memory of 2440	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	121
PID 224 wrote to memory of 2440	224	2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe	121

C:\Users\Admin\AppData\Local\Temp\2025-01-01_34389f7d33dcad9bfc872f5c663e37de_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-01_34389f7d33dcad9bfc872f5c663e37de_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:224
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:888
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1720
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3340
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:468
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1932
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3996
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440

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/224-0-0x0000000000CD0000-0x0000000000CE6000-memory.dmp

Filesize
88KB

Download
memory/224-4-0x0000000000CD0000-0x0000000000CE6000-memory.dmp

Filesize
88KB

Download