gandcrab | 64288b9a27164d82015f9dd944d935ede9ff94fc25331d006060ff4fa0d4e06c

Analysis

max time kernel
142s
max time network
150s
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, 17:19

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General

Target

2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
Size

74KB
MD5

8dc00cec838c38b8949106b13904fee2
SHA1

d1f86825e211d8a3108d062708f4aeb86fd3c479
SHA256

64288b9a27164d82015f9dd944d935ede9ff94fc25331d006060ff4fa0d4e06c
SHA512

ce1ce9c598f82c88ecd07a1ec0ae1271fae0648ec91187127e75977abb5a569ff2784f78d854570be27addabc6e5d6fea58e0e9b1662fa0b1df1384a0cb72990
SSDEEP

1536:N55u555555555pmgSeGDjtQhnwmmB0ybMqqU+2bbbAV2/S2mr3IdE8mne0Avu5rJ:lMSjOnrmBTMqqDL2/mr3IdE8we0Avu5F

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/3668-0-0x00000000009F0000-0x0000000000A06000-memory.dmp	family_gandcrab
behavioral2/memory/3668-4-0x00000000009F0000-0x0000000000A06000-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\txzcslxpohj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe"	2025-01-01_8dc00cec838c38b8949106b13904fee2_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)	\??\I:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\G:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-01_8dc00cec838c38b8949106b13904fee2_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_8dc00cec838c38b8949106b13904fee2_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_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 2260	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	83
PID 3668 wrote to memory of 2260	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	83
PID 3668 wrote to memory of 2260	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	83
PID 3668 wrote to memory of 4520	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	86
PID 3668 wrote to memory of 4520	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	86
PID 3668 wrote to memory of 4520	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	86
PID 3668 wrote to memory of 3376	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	99
PID 3668 wrote to memory of 3376	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	99
PID 3668 wrote to memory of 3376	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	99
PID 3668 wrote to memory of 2980	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	109
PID 3668 wrote to memory of 2980	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	109
PID 3668 wrote to memory of 2980	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	109
PID 3668 wrote to memory of 1936	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	114
PID 3668 wrote to memory of 1936	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	114
PID 3668 wrote to memory of 1936	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	114
PID 3668 wrote to memory of 4308	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	118
PID 3668 wrote to memory of 4308	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	118
PID 3668 wrote to memory of 4308	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	118
PID 3668 wrote to memory of 4684	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	122
PID 3668 wrote to memory of 4684	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	122
PID 3668 wrote to memory of 4684	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	122
PID 3668 wrote to memory of 1100	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	126
PID 3668 wrote to memory of 1100	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	126
PID 3668 wrote to memory of 1100	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	126
PID 3668 wrote to memory of 5020	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	130
PID 3668 wrote to memory of 5020	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	130
PID 3668 wrote to memory of 5020	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	130
PID 3668 wrote to memory of 2356	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	134
PID 3668 wrote to memory of 2356	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	134
PID 3668 wrote to memory of 2356	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	134
PID 3668 wrote to memory of 2768	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	138
PID 3668 wrote to memory of 2768	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	138
PID 3668 wrote to memory of 2768	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	138
PID 3668 wrote to memory of 1180	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	142
PID 3668 wrote to memory of 1180	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	142
PID 3668 wrote to memory of 1180	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	142
PID 3668 wrote to memory of 3172	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	146
PID 3668 wrote to memory of 3172	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	146
PID 3668 wrote to memory of 3172	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	146
PID 3668 wrote to memory of 556	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	150
PID 3668 wrote to memory of 556	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	150
PID 3668 wrote to memory of 556	3668	2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe	150

C:\Users\Admin\AppData\Local\Temp\2025-01-01_8dc00cec838c38b8949106b13904fee2_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-01_8dc00cec838c38b8949106b13904fee2_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:3668
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4308
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4684
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3172
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:556

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/3668-0-0x00000000009F0000-0x0000000000A06000-memory.dmp

Filesize
88KB

Download
memory/3668-4-0x00000000009F0000-0x0000000000A06000-memory.dmp

Filesize
88KB

Download