gandcrab | 5bbd51779903879a1b0f10d176965028897baf76b28ccf72942d7637d35dcc96

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
23-01-2025 22:23

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General

Target

2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
Size

83KB
MD5

08a6dc55c14ea776291bce908dffd0a8
SHA1

878ca8fbbe916b4b9ebfb0b201db6b5001cd4cbc
SHA256

5bbd51779903879a1b0f10d176965028897baf76b28ccf72942d7637d35dcc96
SHA512

4aeb2fd51b587811e84e973a8b32c00b664fffe655788dbe5146e19fceb851a49b4837a2d2284f3de599c9ff407482862fa11794820c97fd84506d1f49a72fa4
SSDEEP

1536:t55u555555555pmgSeGDjtQhnwmmB0yDMqqU+2bbbAV2/S2mr3IdE8mne0Avu5r4:FMSjOnrmBrMqqDL2/mr3IdE8we0Avu5c

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/2604-0-0x0000000000400000-0x0000000000419000-memory.dmp	family_gandcrab
behavioral2/memory/2604-4-0x0000000000400000-0x0000000000419000-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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\csmacramgsb = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe"	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_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)	\??\B:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\G:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe

System Location Discovery: System Language Discovery 1 TTPs 12 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	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_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

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	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 3460	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	84
PID 2604 wrote to memory of 3460	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	84
PID 2604 wrote to memory of 3460	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	84
PID 2604 wrote to memory of 4004	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	88
PID 2604 wrote to memory of 4004	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	88
PID 2604 wrote to memory of 4004	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	88
PID 2604 wrote to memory of 2936	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	95
PID 2604 wrote to memory of 2936	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	95
PID 2604 wrote to memory of 2936	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	95
PID 2604 wrote to memory of 2792	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	99
PID 2604 wrote to memory of 2792	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	99
PID 2604 wrote to memory of 2792	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	99
PID 2604 wrote to memory of 4816	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	103
PID 2604 wrote to memory of 4816	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	103
PID 2604 wrote to memory of 4816	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	103
PID 2604 wrote to memory of 812	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	107
PID 2604 wrote to memory of 812	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	107
PID 2604 wrote to memory of 812	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	107
PID 2604 wrote to memory of 3400	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	114
PID 2604 wrote to memory of 3400	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	114
PID 2604 wrote to memory of 3400	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	114
PID 2604 wrote to memory of 4108	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	124
PID 2604 wrote to memory of 4108	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	124
PID 2604 wrote to memory of 4108	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	124
PID 2604 wrote to memory of 1224	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	128
PID 2604 wrote to memory of 1224	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	128
PID 2604 wrote to memory of 1224	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	128
PID 2604 wrote to memory of 2556	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	132
PID 2604 wrote to memory of 2556	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	132
PID 2604 wrote to memory of 2556	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	132
PID 2604 wrote to memory of 3884	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	136
PID 2604 wrote to memory of 3884	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	136
PID 2604 wrote to memory of 3884	2604	2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe	136

C:\Users\Admin\AppData\Local\Temp\2025-01-23_08a6dc55c14ea776291bce908dffd0a8_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-23_08a6dc55c14ea776291bce908dffd0a8_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:2604
- 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:4004
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:812
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3400
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3884

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/2604-0-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2604-4-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download