gandcrab | 94107bde8db5cff77cfdf5b98a146e1783af2e157053fde3cc2ab8aa5d0efb21

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 04:28

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General

Target

2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
Size

145KB
MD5

36c6342f669739447f08a4c951896c65
SHA1

ebd3bc654d05f9c46901dd804f38cefaff8cb4c6
SHA256

94107bde8db5cff77cfdf5b98a146e1783af2e157053fde3cc2ab8aa5d0efb21
SHA512

0fb149e145f7a050fa0dff90de86c6ba9d806380b9c0435b2c903e156d05fed10e65e280bf6f85f2aaed63f182b9c315f514d8491cb78bfd7ed10da0c08570cb
SSDEEP

3072:AYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:AyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/5064-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/5064-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral2/memory/5064-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/5064-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/5064-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/5064-4-0x0000000000400000-0x0000000000428000-memory.dmp	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-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\pxprkpbfdmd = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe"	2024-03-15_36c6342f669739447f08a4c951896c65_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)	\??\N:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.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\Identifier	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 2548	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	90
PID 5064 wrote to memory of 2548	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	90
PID 5064 wrote to memory of 2548	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	90
PID 5064 wrote to memory of 5020	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	101
PID 5064 wrote to memory of 5020	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	101
PID 5064 wrote to memory of 5020	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	101
PID 5064 wrote to memory of 2304	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	105
PID 5064 wrote to memory of 2304	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	105
PID 5064 wrote to memory of 2304	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	105
PID 5064 wrote to memory of 60	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	108
PID 5064 wrote to memory of 60	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	108
PID 5064 wrote to memory of 60	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	108
PID 5064 wrote to memory of 3144	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	111
PID 5064 wrote to memory of 3144	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	111
PID 5064 wrote to memory of 3144	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	111
PID 5064 wrote to memory of 3944	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	113
PID 5064 wrote to memory of 3944	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	113
PID 5064 wrote to memory of 3944	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	113
PID 5064 wrote to memory of 3844	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	115
PID 5064 wrote to memory of 3844	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	115
PID 5064 wrote to memory of 3844	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	115
PID 5064 wrote to memory of 3124	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	118
PID 5064 wrote to memory of 3124	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	118
PID 5064 wrote to memory of 3124	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	118
PID 5064 wrote to memory of 1980	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	121
PID 5064 wrote to memory of 1980	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	121
PID 5064 wrote to memory of 1980	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	121
PID 5064 wrote to memory of 3660	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	123
PID 5064 wrote to memory of 3660	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	123
PID 5064 wrote to memory of 3660	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	123
PID 5064 wrote to memory of 3776	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	125
PID 5064 wrote to memory of 3776	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	125
PID 5064 wrote to memory of 3776	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	125
PID 5064 wrote to memory of 3884	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	132
PID 5064 wrote to memory of 3884	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	132
PID 5064 wrote to memory of 3884	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	132
PID 5064 wrote to memory of 2896	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	134
PID 5064 wrote to memory of 2896	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	134
PID 5064 wrote to memory of 2896	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	134
PID 5064 wrote to memory of 2828	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	136
PID 5064 wrote to memory of 2828	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	136
PID 5064 wrote to memory of 2828	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	136
PID 5064 wrote to memory of 3188	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	138
PID 5064 wrote to memory of 3188	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	138
PID 5064 wrote to memory of 3188	5064	2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe	138

C:\Users\Admin\AppData\Local\Temp\2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_36c6342f669739447f08a4c951896c65_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2548
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:5020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2304
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:60
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3144
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3944
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3844
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3124
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1980
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3660
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3776
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2896
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3188

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5064-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5064-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download