gandcrab | f2a762d7894026d08ea8e013ce76a8f7596e0f439cb62589eb182c2df403dd7c

Analysis

max time kernel
150s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 01:30

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General

Target

2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
Size

240KB
MD5

509c7a0d9196a91be3607661573897e2
SHA1

7ebe526e781b772b20c33ff2dc88aa057ef4bd19
SHA256

f2a762d7894026d08ea8e013ce76a8f7596e0f439cb62589eb182c2df403dd7c
SHA512

5ba022c821cbacc7bd3782ca71554d8cc922e5502669461e5986bb44cb31d01778d5673bf19d2b5028b5cd3674bbc9ebdfd2a9a89146e63911452a32885b83c5
SSDEEP

3072:lYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:lycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/1972-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral1/memory/1972-4-0x0000000000400000-0x000000000043C000-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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\dgouvvfbwuj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe"	2024-11-24_509c7a0d9196a91be3607661573897e2_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)	\??\B:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1972-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/1972-4-0x0000000000400000-0x000000000043C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 16 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	2024-11-24_509c7a0d9196a91be3607661573897e2_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

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\ProcessorNameString	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2484	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	31
PID 1972 wrote to memory of 2484	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	31
PID 1972 wrote to memory of 2484	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	31
PID 1972 wrote to memory of 2484	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	31
PID 1972 wrote to memory of 2224	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	34
PID 1972 wrote to memory of 2224	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	34
PID 1972 wrote to memory of 2224	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	34
PID 1972 wrote to memory of 2224	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	34
PID 1972 wrote to memory of 2872	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	36
PID 1972 wrote to memory of 2872	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	36
PID 1972 wrote to memory of 2872	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	36
PID 1972 wrote to memory of 2872	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	36
PID 1972 wrote to memory of 2608	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	38
PID 1972 wrote to memory of 2608	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	38
PID 1972 wrote to memory of 2608	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	38
PID 1972 wrote to memory of 2608	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	38
PID 1972 wrote to memory of 1192	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	40
PID 1972 wrote to memory of 1192	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	40
PID 1972 wrote to memory of 1192	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	40
PID 1972 wrote to memory of 1192	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	40
PID 1972 wrote to memory of 1568	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	42
PID 1972 wrote to memory of 1568	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	42
PID 1972 wrote to memory of 1568	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	42
PID 1972 wrote to memory of 1568	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	42
PID 1972 wrote to memory of 1300	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	44
PID 1972 wrote to memory of 1300	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	44
PID 1972 wrote to memory of 1300	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	44
PID 1972 wrote to memory of 1300	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	44
PID 1972 wrote to memory of 1412	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	46
PID 1972 wrote to memory of 1412	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	46
PID 1972 wrote to memory of 1412	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	46
PID 1972 wrote to memory of 1412	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	46
PID 1972 wrote to memory of 1696	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	48
PID 1972 wrote to memory of 1696	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	48
PID 1972 wrote to memory of 1696	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	48
PID 1972 wrote to memory of 1696	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	48
PID 1972 wrote to memory of 2176	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	50
PID 1972 wrote to memory of 2176	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	50
PID 1972 wrote to memory of 2176	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	50
PID 1972 wrote to memory of 2176	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	50
PID 1972 wrote to memory of 2320	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	52
PID 1972 wrote to memory of 2320	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	52
PID 1972 wrote to memory of 2320	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	52
PID 1972 wrote to memory of 2320	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	52
PID 1972 wrote to memory of 1656	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	54
PID 1972 wrote to memory of 1656	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	54
PID 1972 wrote to memory of 1656	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	54
PID 1972 wrote to memory of 1656	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	54
PID 1972 wrote to memory of 1100	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	56
PID 1972 wrote to memory of 1100	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	56
PID 1972 wrote to memory of 1100	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	56
PID 1972 wrote to memory of 1100	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	56
PID 1972 wrote to memory of 1508	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	58
PID 1972 wrote to memory of 1508	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	58
PID 1972 wrote to memory of 1508	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	58
PID 1972 wrote to memory of 1508	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	58
PID 1972 wrote to memory of 1284	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	60
PID 1972 wrote to memory of 1284	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	60
PID 1972 wrote to memory of 1284	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	60
PID 1972 wrote to memory of 1284	1972	2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-11-24_509c7a0d9196a91be3607661573897e2_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-24_509c7a0d9196a91be3607661573897e2_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:1972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1192
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1568
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1300
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1412
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1696
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320
- 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:1100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1508
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1284

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

Loading Replay Monitor...

Downloads

memory/1972-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1972-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download