gandcrab | 8d38d3b92a2276cb52c2cff153f3ea16a95818d34a70faf7b3996fa4d5b8e3f5

Analysis

max time kernel
150s
max time network
141s
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 16:49

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General

Target

2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
Size

74KB
MD5

3fa8955b6cbf296a8d000307977c5106
SHA1

2737d97b2fcae2072301adf92ea9cdea2266754f
SHA256

8d38d3b92a2276cb52c2cff153f3ea16a95818d34a70faf7b3996fa4d5b8e3f5
SHA512

7b609e04940b128cf0dfabe65c4796f88d6b742e6bdb3853f4153191fb26f9767fdd27ad61b385b46cadd24ee1eb1c00e6685c40de0a84243855e3f214597559
SSDEEP

1536:GgSeGDjtQhnwmmB0yjMqqUM2mr3IdE8mne0Avu5r++yy7CA7GcIaapavdv:GMSjOnrmBbMqqMmr3IdE8we0Avu5r++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/212-0-0x0000000000400000-0x0000000000416000-memory.dmp	family_gandcrab
behavioral2/memory/212-4-0x0000000000400000-0x0000000000416000-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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\gjgpiatvjgc = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe"	2025-01-01_3fa8955b6cbf296a8d000307977c5106_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)	\??\T:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\G:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe

System Location Discovery: System Language Discovery 1 TTPs 14 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	2025-01-01_3fa8955b6cbf296a8d000307977c5106_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_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 1564	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	83
PID 212 wrote to memory of 1564	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	83
PID 212 wrote to memory of 1564	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	83
PID 212 wrote to memory of 4004	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	94
PID 212 wrote to memory of 4004	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	94
PID 212 wrote to memory of 4004	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	94
PID 212 wrote to memory of 464	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	102
PID 212 wrote to memory of 464	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	102
PID 212 wrote to memory of 464	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	102
PID 212 wrote to memory of 1544	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	108
PID 212 wrote to memory of 1544	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	108
PID 212 wrote to memory of 1544	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	108
PID 212 wrote to memory of 4276	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	112
PID 212 wrote to memory of 4276	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	112
PID 212 wrote to memory of 4276	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	112
PID 212 wrote to memory of 3536	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	116
PID 212 wrote to memory of 3536	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	116
PID 212 wrote to memory of 3536	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	116
PID 212 wrote to memory of 5028	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	120
PID 212 wrote to memory of 5028	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	120
PID 212 wrote to memory of 5028	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	120
PID 212 wrote to memory of 1440	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	124
PID 212 wrote to memory of 1440	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	124
PID 212 wrote to memory of 1440	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	124
PID 212 wrote to memory of 3616	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	128
PID 212 wrote to memory of 3616	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	128
PID 212 wrote to memory of 3616	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	128
PID 212 wrote to memory of 4940	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	132
PID 212 wrote to memory of 4940	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	132
PID 212 wrote to memory of 4940	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	132
PID 212 wrote to memory of 4028	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	136
PID 212 wrote to memory of 4028	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	136
PID 212 wrote to memory of 4028	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	136
PID 212 wrote to memory of 768	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	140
PID 212 wrote to memory of 768	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	140
PID 212 wrote to memory of 768	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	140
PID 212 wrote to memory of 4332	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	144
PID 212 wrote to memory of 4332	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	144
PID 212 wrote to memory of 4332	212	2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe	144

C:\Users\Admin\AppData\Local\Temp\2025-01-01_3fa8955b6cbf296a8d000307977c5106_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-01_3fa8955b6cbf296a8d000307977c5106_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:212
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1564
- 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:464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1544
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4276
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3536
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1440
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4028
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4332
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2400

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

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Downloads

memory/212-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/212-4-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download