gandcrab | 6c81c653d7ace659de8f5ef55aa0046f38fcf1c9e21b1ba17ea5a6fe0028a2ae

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 02:58

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General

Target

2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
Size

145KB
MD5

5c10d889e504323f3f59cbd5392aa04d
SHA1

aa6b038eee3686a64c0ebf832c7b88bd2f77c580
SHA256

6c81c653d7ace659de8f5ef55aa0046f38fcf1c9e21b1ba17ea5a6fe0028a2ae
SHA512

414b38b58c43a1bf9707b74fbb01cd4777baf906384e5d3275682c7a5c3eecc2a304aae832eb0003b361d93eb10c3e81bbb59d413e3a58c0f3a21228beef864f
SSDEEP

3072:bYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:byOqqDL64vdGREz

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4276-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4276-4-0x0000000000400000-0x0000000000428000-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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\cagarfbsckp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe"	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_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:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\M:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\S:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\W:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\X:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\A:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\E:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\G:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\J:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\N:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\O:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\P:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\H:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\L:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\Q:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\R:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\T:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\V:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\Y:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\B:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\K:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\U:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
File opened (read-only)	\??\Z:	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe

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	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_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	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 2040	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	86
PID 4276 wrote to memory of 2040	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	86
PID 4276 wrote to memory of 2040	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	86
PID 4276 wrote to memory of 1700	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	88
PID 4276 wrote to memory of 1700	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	88
PID 4276 wrote to memory of 1700	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	88
PID 4276 wrote to memory of 4480	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	92
PID 4276 wrote to memory of 4480	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	92
PID 4276 wrote to memory of 4480	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	92
PID 4276 wrote to memory of 4088	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	98
PID 4276 wrote to memory of 4088	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	98
PID 4276 wrote to memory of 4088	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	98
PID 4276 wrote to memory of 4000	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	103
PID 4276 wrote to memory of 4000	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	103
PID 4276 wrote to memory of 4000	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	103
PID 4276 wrote to memory of 2120	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	107
PID 4276 wrote to memory of 2120	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	107
PID 4276 wrote to memory of 2120	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	107
PID 4276 wrote to memory of 2036	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	110
PID 4276 wrote to memory of 2036	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	110
PID 4276 wrote to memory of 2036	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	110
PID 4276 wrote to memory of 3608	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	114
PID 4276 wrote to memory of 3608	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	114
PID 4276 wrote to memory of 3608	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	114
PID 4276 wrote to memory of 760	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	118
PID 4276 wrote to memory of 760	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	118
PID 4276 wrote to memory of 760	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	118
PID 4276 wrote to memory of 3964	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	122
PID 4276 wrote to memory of 3964	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	122
PID 4276 wrote to memory of 3964	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	122
PID 4276 wrote to memory of 2280	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	126
PID 4276 wrote to memory of 2280	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	126
PID 4276 wrote to memory of 2280	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	126
PID 4276 wrote to memory of 4560	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	130
PID 4276 wrote to memory of 4560	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	130
PID 4276 wrote to memory of 4560	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	130
PID 4276 wrote to memory of 852	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	134
PID 4276 wrote to memory of 852	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	134
PID 4276 wrote to memory of 852	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	134
PID 4276 wrote to memory of 3992	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	138
PID 4276 wrote to memory of 3992	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	138
PID 4276 wrote to memory of 3992	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	138
PID 4276 wrote to memory of 4976	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	142
PID 4276 wrote to memory of 4976	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	142
PID 4276 wrote to memory of 4976	4276	2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe	142

C:\Users\Admin\AppData\Local\Temp\2024-10-14_5c10d889e504323f3f59cbd5392aa04d_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_5c10d889e504323f3f59cbd5392aa04d_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:4276
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1700
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4480
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4088
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4000
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2120
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2036
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3608
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:852
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3992
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4976

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/4276-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4276-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download