gandcrab | 2fc498007b5e0d6008b9cdb7dbd32c09805fd1b3688c968e975f213296c0a097

Analysis

max time kernel
148s
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
14-10-2024 02:49

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General

Target

2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
Size

145KB
MD5

27c4901f40f587758e16cef7220dbf47
SHA1

aec2030b9caea26c7cac8c767c91abccdc97d463
SHA256

2fc498007b5e0d6008b9cdb7dbd32c09805fd1b3688c968e975f213296c0a097
SHA512

f9214b2d77adbac2286b1e662bd1e18f084b619e04d918b34b72561ab9ec0eb570b04befa7da555d6a77ae0a6babf5ea822faf5c2d1001f3c13f0806a68fb19a
SSDEEP

3072:OYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:OyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/2564-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/2564-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor 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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\mqzlaycwgnw = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe"	2024-10-14_27c4901f40f587758e16cef7220dbf47_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)	\??\M:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\X:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\Y:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\E:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\H:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\I:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\P:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\S:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\W:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\J:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\L:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\N:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\V:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\Z:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\G:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\O:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\U:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\Q:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\R:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\T:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\A:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\B:	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
File opened (read-only)	\??\K:	2024-10-14_27c4901f40f587758e16cef7220dbf47_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	2024-10-14_27c4901f40f587758e16cef7220dbf47_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
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\Identifier	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 2836	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	86
PID 2564 wrote to memory of 2836	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	86
PID 2564 wrote to memory of 2836	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	86
PID 2564 wrote to memory of 4828	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	88
PID 2564 wrote to memory of 4828	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	88
PID 2564 wrote to memory of 4828	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	88
PID 2564 wrote to memory of 2900	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	90
PID 2564 wrote to memory of 2900	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	90
PID 2564 wrote to memory of 2900	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	90
PID 2564 wrote to memory of 4532	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	94
PID 2564 wrote to memory of 4532	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	94
PID 2564 wrote to memory of 4532	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	94
PID 2564 wrote to memory of 3912	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	97
PID 2564 wrote to memory of 3912	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	97
PID 2564 wrote to memory of 3912	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	97
PID 2564 wrote to memory of 5016	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	99
PID 2564 wrote to memory of 5016	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	99
PID 2564 wrote to memory of 5016	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	99
PID 2564 wrote to memory of 1976	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	101
PID 2564 wrote to memory of 1976	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	101
PID 2564 wrote to memory of 1976	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	101
PID 2564 wrote to memory of 320	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	103
PID 2564 wrote to memory of 320	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	103
PID 2564 wrote to memory of 320	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	103
PID 2564 wrote to memory of 2200	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	105
PID 2564 wrote to memory of 2200	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	105
PID 2564 wrote to memory of 2200	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	105
PID 2564 wrote to memory of 5104	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	107
PID 2564 wrote to memory of 5104	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	107
PID 2564 wrote to memory of 5104	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	107
PID 2564 wrote to memory of 4960	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	109
PID 2564 wrote to memory of 4960	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	109
PID 2564 wrote to memory of 4960	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	109
PID 2564 wrote to memory of 1256	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	111
PID 2564 wrote to memory of 1256	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	111
PID 2564 wrote to memory of 1256	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	111
PID 2564 wrote to memory of 1100	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	113
PID 2564 wrote to memory of 1100	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	113
PID 2564 wrote to memory of 1100	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	113
PID 2564 wrote to memory of 3216	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	115
PID 2564 wrote to memory of 3216	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	115
PID 2564 wrote to memory of 3216	2564	2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe	115

C:\Users\Admin\AppData\Local\Temp\2024-10-14_27c4901f40f587758e16cef7220dbf47_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_27c4901f40f587758e16cef7220dbf47_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:2564
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3912
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1976
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:320
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4960
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1256
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3216

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/2564-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2564-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download