gandcrab | e4066a70633ffbd5ac4434f6bc8340a07f9827d0cefe8e779f429b7cb352fe9d

Analysis

max time kernel
150s
max time network
145s
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, 18:53

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General

Target

2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
Size

74KB
MD5

92ae52c68fba584f1a6a89e098bb1441
SHA1

2e21cc92e214f845ee87daac7a4ee541191500ff
SHA256

e4066a70633ffbd5ac4434f6bc8340a07f9827d0cefe8e779f429b7cb352fe9d
SHA512

1978eb053d03b34d8a9459398c565e380f1e9eeab101a0c439602cd3fddfb60457456b7fdc59d7e031a4bea05df38f15798d81a494b215770001e48621e360ce
SSDEEP

1536:U55u555555555pmgSeGDjtQhnwmmB0ybMqqU+2bbbAV2/S2mr3IdE8mne0Avu5rJ:GMSjOnrmBTMqqDL2/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/1092-0-0x0000000000BA0000-0x0000000000BB6000-memory.dmp	family_gandcrab
behavioral2/memory/1092-4-0x0000000000BA0000-0x0000000000BB6000-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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\okkrvgzgymm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe"	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_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_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\H:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_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_92ae52c68fba584f1a6a89e098bb1441_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_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 3828	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	82
PID 1092 wrote to memory of 3828	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	82
PID 1092 wrote to memory of 3828	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	82
PID 1092 wrote to memory of 1548	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	88
PID 1092 wrote to memory of 1548	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	88
PID 1092 wrote to memory of 1548	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	88
PID 1092 wrote to memory of 2364	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	93
PID 1092 wrote to memory of 2364	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	93
PID 1092 wrote to memory of 2364	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	93
PID 1092 wrote to memory of 1044	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	96
PID 1092 wrote to memory of 1044	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	96
PID 1092 wrote to memory of 1044	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	96
PID 1092 wrote to memory of 3812	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	99
PID 1092 wrote to memory of 3812	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	99
PID 1092 wrote to memory of 3812	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	99
PID 1092 wrote to memory of 804	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	101
PID 1092 wrote to memory of 804	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	101
PID 1092 wrote to memory of 804	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	101
PID 1092 wrote to memory of 4376	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	103
PID 1092 wrote to memory of 4376	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	103
PID 1092 wrote to memory of 4376	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	103
PID 1092 wrote to memory of 1464	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	105
PID 1092 wrote to memory of 1464	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	105
PID 1092 wrote to memory of 1464	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	105
PID 1092 wrote to memory of 812	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	107
PID 1092 wrote to memory of 812	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	107
PID 1092 wrote to memory of 812	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	107
PID 1092 wrote to memory of 2800	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	109
PID 1092 wrote to memory of 2800	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	109
PID 1092 wrote to memory of 2800	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	109
PID 1092 wrote to memory of 2508	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	111
PID 1092 wrote to memory of 2508	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	111
PID 1092 wrote to memory of 2508	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	111
PID 1092 wrote to memory of 2460	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	113
PID 1092 wrote to memory of 2460	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	113
PID 1092 wrote to memory of 2460	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	113
PID 1092 wrote to memory of 4432	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	115
PID 1092 wrote to memory of 4432	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	115
PID 1092 wrote to memory of 4432	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	115
PID 1092 wrote to memory of 4792	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	117
PID 1092 wrote to memory of 4792	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	117
PID 1092 wrote to memory of 4792	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	117
PID 1092 wrote to memory of 1988	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	119
PID 1092 wrote to memory of 1988	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	119
PID 1092 wrote to memory of 1988	1092	2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe	119

C:\Users\Admin\AppData\Local\Temp\2025-01-01_92ae52c68fba584f1a6a89e098bb1441_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-01_92ae52c68fba584f1a6a89e098bb1441_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:1092
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1548
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1044
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3812
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1464
- 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:2800
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4432
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1988

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/1092-0-0x0000000000BA0000-0x0000000000BB6000-memory.dmp

Filesize
88KB

Download
memory/1092-4-0x0000000000BA0000-0x0000000000BB6000-memory.dmp

Filesize
88KB

Download