gandcrab | ab9ede25dc85307aae90501a2a692d782bf7148823bf1481bf9e9b8923185425

Analysis

max time kernel
149s
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 03:12

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General

Target

2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
Size

240KB
MD5

9d55f175494e3e69553bf8c899cc1446
SHA1

9c041bab4e28dcc55b3e14e4a9f8d8d9a585c773
SHA256

ab9ede25dc85307aae90501a2a692d782bf7148823bf1481bf9e9b8923185425
SHA512

3407b475b99b384c84ad96c3f393c75e5f9ed2498477f79dfab898107252fb919e9c1ea03b55a84ad9930d584de38dd3d4b10431a33b37190b5ae37eaa309a2e
SSDEEP

3072:bYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:bycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4704-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/4704-4-0x0000000000400000-0x000000000043C000-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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\tbqzptnrmrp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe"	2024-10-14_9d55f175494e3e69553bf8c899cc1446_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)	\??\T:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\U:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\V:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\H:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\J:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\K:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\N:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\P:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\X:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\Z:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\A:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\G:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\R:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\Y:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\B:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\E:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\O:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\W:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\I:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\L:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\M:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\Q:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
File opened (read-only)	\??\S:	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4704-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/4704-4-0x0000000000400000-0x000000000043C000-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	2024-10-14_9d55f175494e3e69553bf8c899cc1446_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
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_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 1132	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	86
PID 4704 wrote to memory of 1132	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	86
PID 4704 wrote to memory of 1132	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	86
PID 4704 wrote to memory of 4392	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	88
PID 4704 wrote to memory of 4392	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	88
PID 4704 wrote to memory of 4392	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	88
PID 4704 wrote to memory of 3084	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	92
PID 4704 wrote to memory of 3084	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	92
PID 4704 wrote to memory of 3084	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	92
PID 4704 wrote to memory of 5024	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	99
PID 4704 wrote to memory of 5024	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	99
PID 4704 wrote to memory of 5024	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	99
PID 4704 wrote to memory of 4304	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	105
PID 4704 wrote to memory of 4304	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	105
PID 4704 wrote to memory of 4304	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	105
PID 4704 wrote to memory of 2768	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	109
PID 4704 wrote to memory of 2768	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	109
PID 4704 wrote to memory of 2768	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	109
PID 4704 wrote to memory of 2340	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	112
PID 4704 wrote to memory of 2340	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	112
PID 4704 wrote to memory of 2340	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	112
PID 4704 wrote to memory of 5104	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	116
PID 4704 wrote to memory of 5104	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	116
PID 4704 wrote to memory of 5104	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	116
PID 4704 wrote to memory of 2060	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	120
PID 4704 wrote to memory of 2060	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	120
PID 4704 wrote to memory of 2060	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	120
PID 4704 wrote to memory of 3612	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	123
PID 4704 wrote to memory of 3612	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	123
PID 4704 wrote to memory of 3612	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	123
PID 4704 wrote to memory of 4380	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	127
PID 4704 wrote to memory of 4380	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	127
PID 4704 wrote to memory of 4380	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	127
PID 4704 wrote to memory of 4984	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	131
PID 4704 wrote to memory of 4984	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	131
PID 4704 wrote to memory of 4984	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	131
PID 4704 wrote to memory of 3396	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	135
PID 4704 wrote to memory of 3396	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	135
PID 4704 wrote to memory of 3396	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	135
PID 4704 wrote to memory of 2192	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	139
PID 4704 wrote to memory of 2192	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	139
PID 4704 wrote to memory of 2192	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	139
PID 4704 wrote to memory of 4896	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	143
PID 4704 wrote to memory of 4896	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	143
PID 4704 wrote to memory of 4896	4704	2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe	143

C:\Users\Admin\AppData\Local\Temp\2024-10-14_9d55f175494e3e69553bf8c899cc1446_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_9d55f175494e3e69553bf8c899cc1446_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:4704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1132
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4392
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3084
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4304
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4380
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4984
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4896

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/4704-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4704-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download