gandcrab | f75845482e14e276b049cb6b64548f8a19c2a02d98a69a4cb5051de663e905cf

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 02:27

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General

Target

2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
Size

167KB
MD5

44cfb6e185e8c89724fdf22530b24237
SHA1

e6305032ef47fc1ef69a0436e5d4dc891e681fba
SHA256

f75845482e14e276b049cb6b64548f8a19c2a02d98a69a4cb5051de663e905cf
SHA512

6a0c3297babb8f088c0bb0412c3623d7f7b1d65f94334631b4cda0648ff436fe07cc3889ef21310d30b81480ad1ae275f82a9019b3db765a46b2886ebf76e662
SSDEEP

3072:cYHVHd2NpMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpek:cyRqqDL6oREzZpl

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4444-0-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab
behavioral2/memory/4444-4-0x0000000000400000-0x000000000042C000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\jaeauahuzfr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe"	2024-11-23_44cfb6e185e8c89724fdf22530b24237_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)	\??\H:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\B:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4444-0-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral2/memory/4444-4-0x0000000000400000-0x000000000042C000-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	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	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.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	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 4176	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	83
PID 4444 wrote to memory of 4176	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	83
PID 4444 wrote to memory of 4176	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	83
PID 4444 wrote to memory of 1524	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	98
PID 4444 wrote to memory of 1524	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	98
PID 4444 wrote to memory of 1524	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	98
PID 4444 wrote to memory of 3640	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	102
PID 4444 wrote to memory of 3640	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	102
PID 4444 wrote to memory of 3640	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	102
PID 4444 wrote to memory of 3796	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	108
PID 4444 wrote to memory of 3796	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	108
PID 4444 wrote to memory of 3796	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	108
PID 4444 wrote to memory of 1260	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	112
PID 4444 wrote to memory of 1260	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	112
PID 4444 wrote to memory of 1260	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	112
PID 4444 wrote to memory of 3960	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	115
PID 4444 wrote to memory of 3960	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	115
PID 4444 wrote to memory of 3960	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	115
PID 4444 wrote to memory of 4404	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	119
PID 4444 wrote to memory of 4404	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	119
PID 4444 wrote to memory of 4404	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	119
PID 4444 wrote to memory of 4916	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	122
PID 4444 wrote to memory of 4916	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	122
PID 4444 wrote to memory of 4916	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	122
PID 4444 wrote to memory of 1116	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	125
PID 4444 wrote to memory of 1116	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	125
PID 4444 wrote to memory of 1116	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	125
PID 4444 wrote to memory of 4492	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	129
PID 4444 wrote to memory of 4492	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	129
PID 4444 wrote to memory of 4492	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	129
PID 4444 wrote to memory of 4308	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	133
PID 4444 wrote to memory of 4308	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	133
PID 4444 wrote to memory of 4308	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	133
PID 4444 wrote to memory of 3236	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	137
PID 4444 wrote to memory of 3236	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	137
PID 4444 wrote to memory of 3236	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	137
PID 4444 wrote to memory of 4544	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	140
PID 4444 wrote to memory of 4544	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	140
PID 4444 wrote to memory of 4544	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	140
PID 4444 wrote to memory of 3920	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	144
PID 4444 wrote to memory of 3920	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	144
PID 4444 wrote to memory of 3920	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	144
PID 4444 wrote to memory of 1124	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	147
PID 4444 wrote to memory of 1124	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	147
PID 4444 wrote to memory of 1124	4444	2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe	147

C:\Users\Admin\AppData\Local\Temp\2024-11-23_44cfb6e185e8c89724fdf22530b24237_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_44cfb6e185e8c89724fdf22530b24237_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:4444
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4176
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1524
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3640
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3796
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3960
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4404
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1116
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4308
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3236
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4544
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3920
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1124

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/4444-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/4444-4-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download