gandcrab | 2237782503f8ecc69b4405285c9a397d5787adb2c60596194914a5d6caec5336

Analysis

max time kernel
148s
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, 19:49

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General

Target

2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
Size

74KB
MD5

75cb5961946386fdc27803aed2b46837
SHA1

35c31571ba03092b098d5f9c0f73ed72b78d2bfa
SHA256

2237782503f8ecc69b4405285c9a397d5787adb2c60596194914a5d6caec5336
SHA512

82b8cd393b1239dffeb969a90b4681f72cf162b01b513c58d836578a397613497b37373996e18135a27a34593d04977f7560c620436e5171e1d984cfae3502f5
SSDEEP

1536:ogSeGDjtQhnwmmB0yjMqqUM2mr3IdE8mne0Avu5r++yy7CA7GcIaapavdv:oMSjOnrmBbMqqMmr3IdE8we0Avu5r++N

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/3412-0-0x0000000000400000-0x0000000000416000-memory.dmp	family_gandcrab
behavioral2/memory/3412-4-0x0000000000400000-0x0000000000416000-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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\toycjbbjjbl = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe"	2025-01-01_75cb5961946386fdc27803aed2b46837_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)	\??\G:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe

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

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	2025-01-01_75cb5961946386fdc27803aed2b46837_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

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_75cb5961946386fdc27803aed2b46837_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 684	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	85
PID 3412 wrote to memory of 684	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	85
PID 3412 wrote to memory of 684	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	85
PID 3412 wrote to memory of 4396	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	87
PID 3412 wrote to memory of 4396	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	87
PID 3412 wrote to memory of 4396	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	87
PID 3412 wrote to memory of 5040	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	90
PID 3412 wrote to memory of 5040	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	90
PID 3412 wrote to memory of 5040	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	90
PID 3412 wrote to memory of 4104	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	98
PID 3412 wrote to memory of 4104	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	98
PID 3412 wrote to memory of 4104	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	98
PID 3412 wrote to memory of 2088	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	113
PID 3412 wrote to memory of 2088	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	113
PID 3412 wrote to memory of 2088	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	113
PID 3412 wrote to memory of 2216	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	117
PID 3412 wrote to memory of 2216	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	117
PID 3412 wrote to memory of 2216	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	117
PID 3412 wrote to memory of 3512	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	122
PID 3412 wrote to memory of 3512	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	122
PID 3412 wrote to memory of 3512	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	122
PID 3412 wrote to memory of 4988	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	126
PID 3412 wrote to memory of 4988	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	126
PID 3412 wrote to memory of 4988	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	126
PID 3412 wrote to memory of 1512	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	130
PID 3412 wrote to memory of 1512	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	130
PID 3412 wrote to memory of 1512	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	130
PID 3412 wrote to memory of 3460	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	134
PID 3412 wrote to memory of 3460	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	134
PID 3412 wrote to memory of 3460	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	134
PID 3412 wrote to memory of 5056	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	138
PID 3412 wrote to memory of 5056	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	138
PID 3412 wrote to memory of 5056	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	138
PID 3412 wrote to memory of 2624	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	142
PID 3412 wrote to memory of 2624	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	142
PID 3412 wrote to memory of 2624	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	142
PID 3412 wrote to memory of 712	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	146
PID 3412 wrote to memory of 712	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	146
PID 3412 wrote to memory of 712	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	146
PID 3412 wrote to memory of 2420	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	150
PID 3412 wrote to memory of 2420	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	150
PID 3412 wrote to memory of 2420	3412	2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe	150

C:\Users\Admin\AppData\Local\Temp\2025-01-01_75cb5961946386fdc27803aed2b46837_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-01_75cb5961946386fdc27803aed2b46837_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:3412
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:684
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4104
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3512
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4988
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1512
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3460
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:712
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420

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/3412-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3412-4-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download