gandcrab | 5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2

Analysis

max time kernel
116s
max time network
113s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 10:56

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General

Target

5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
Size

119KB
MD5

3fd9ecaf80a21c7204bc227211f25677
SHA1

5ea2d5111c960f2771595f07c0c5d244a803dc3e
SHA256

5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2
SHA512

2c0f9fb519486099b5c31bb47e0186d784a249a3cf49f8314d8b1f83a6b4afa33453bfaf7676cb9dd953016d6441382d9da8ab525f2754de7441447418da4ae7
SSDEEP

3072:tzuPVLDaAA3d2C9hQssDh7a7I4M3FyOO3+Bout8lc2:qDvSb4f9a7IFLO3ioS8K2

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Extracted

Family

gandcrab

http://gdcbghvjyqy7jclk.onion.top/

Signatures

GandCrab payload 12 IoCs

resource	yara_rule
behavioral1/memory/2236-3-0x0000000000400000-0x0000000000416000-memory.dmp	family_gandcrab
behavioral1/memory/2236-7-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-10-0x0000000000400000-0x0000000000416000-memory.dmp	family_gandcrab
behavioral1/memory/2236-11-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-12-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-13-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-14-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-15-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-16-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-17-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-18-0x0000000000400000-0x000000000043F000-memory.dmp	family_gandcrab
behavioral1/memory/2236-20-0x0000000000400000-0x000000000043F000-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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\qrblydfchza = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe"	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.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)	\??\W:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\G:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\I:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\S:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\V:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\M:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\O:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\A:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\H:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\J:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\K:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\R:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\T:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\X:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\Y:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\B:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\L:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\N:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\P:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\E:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\Q:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\U:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
File opened (read-only)	\??\Z:	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2236-0-0x0000000000400000-0x000000000043F000-memory.dmp	upx

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	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 1980	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	32
PID 2236 wrote to memory of 1980	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	32
PID 2236 wrote to memory of 1980	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	32
PID 2236 wrote to memory of 1980	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	32
PID 2236 wrote to memory of 2700	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	34
PID 2236 wrote to memory of 2700	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	34
PID 2236 wrote to memory of 2700	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	34
PID 2236 wrote to memory of 2700	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	34
PID 2236 wrote to memory of 1656	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	36
PID 2236 wrote to memory of 1656	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	36
PID 2236 wrote to memory of 1656	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	36
PID 2236 wrote to memory of 1656	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	36
PID 2236 wrote to memory of 2764	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	38
PID 2236 wrote to memory of 2764	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	38
PID 2236 wrote to memory of 2764	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	38
PID 2236 wrote to memory of 2764	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	38
PID 2236 wrote to memory of 2516	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	40
PID 2236 wrote to memory of 2516	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	40
PID 2236 wrote to memory of 2516	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	40
PID 2236 wrote to memory of 2516	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	40
PID 2236 wrote to memory of 1312	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	42
PID 2236 wrote to memory of 1312	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	42
PID 2236 wrote to memory of 1312	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	42
PID 2236 wrote to memory of 1312	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	42
PID 2236 wrote to memory of 2272	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	44
PID 2236 wrote to memory of 2272	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	44
PID 2236 wrote to memory of 2272	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	44
PID 2236 wrote to memory of 2272	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	44
PID 2236 wrote to memory of 2404	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	46
PID 2236 wrote to memory of 2404	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	46
PID 2236 wrote to memory of 2404	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	46
PID 2236 wrote to memory of 2404	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	46
PID 2236 wrote to memory of 2264	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	48
PID 2236 wrote to memory of 2264	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	48
PID 2236 wrote to memory of 2264	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	48
PID 2236 wrote to memory of 2264	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	48
PID 2236 wrote to memory of 872	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	50
PID 2236 wrote to memory of 872	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	50
PID 2236 wrote to memory of 872	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	50
PID 2236 wrote to memory of 872	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	50
PID 2236 wrote to memory of 1540	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	52
PID 2236 wrote to memory of 1540	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	52
PID 2236 wrote to memory of 1540	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	52
PID 2236 wrote to memory of 1540	2236	5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe	52

C:\Users\Admin\AppData\Local\Temp\5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.exe
"C:\Users\Admin\AppData\Local\Temp\5a4bdbf9e0bf5148024332fd44fd705915d6e3a3a0a0673f74e66ff78e1e7bd2.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:2236
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1980
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1312
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2272
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:872
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1540

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/2236-0-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-2-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2236-3-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2236-7-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-8-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2236-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2236-11-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-12-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-13-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-14-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-15-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-16-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2236-20-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download