gandcrab | fa18c2ab79a2ff2999f444813a477c4348dc1133a748f44d8ee9598638e0c947

Analysis

max time kernel
141s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 16:43

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General

Target

2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
Size

145KB
MD5

5936c822665818f9fafa8da9918be949
SHA1

4b4d5ba3014fc573c3118c81dc4a510e213c1530
SHA256

fa18c2ab79a2ff2999f444813a477c4348dc1133a748f44d8ee9598638e0c947
SHA512

7e2bc4148df680b9fd577c1a3fea0a742147e29338bfe1d7adce864863fc2c205e6d45e1a80b843f1e9e9398d41ade27500bc968be950abdfc4e30e6e320897c
SSDEEP

3072:cYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:cyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1376-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/1376-4-0x0000000000400000-0x0000000000428000-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/1376-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/1376-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1376-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/1376-4-0x0000000000400000-0x0000000000428000-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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ygttgtdukxt = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe"	2024-02-01_5936c822665818f9fafa8da9918be949_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)	\??\O:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\R:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\Y:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\B:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\I:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\J:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\W:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\L:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\N:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\S:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\U:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\E:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\G:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\H:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\K:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\V:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\X:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\T:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\Z:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\A:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\M:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\P:	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
File opened (read-only)	\??\Q:	2024-02-01_5936c822665818f9fafa8da9918be949_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\ProcessorNameString	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 2860	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	87
PID 1376 wrote to memory of 2860	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	87
PID 1376 wrote to memory of 2860	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	87
PID 1376 wrote to memory of 3624	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	96
PID 1376 wrote to memory of 3624	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	96
PID 1376 wrote to memory of 3624	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	96
PID 1376 wrote to memory of 968	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	98
PID 1376 wrote to memory of 968	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	98
PID 1376 wrote to memory of 968	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	98
PID 1376 wrote to memory of 4208	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	101
PID 1376 wrote to memory of 4208	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	101
PID 1376 wrote to memory of 4208	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	101
PID 1376 wrote to memory of 2656	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	103
PID 1376 wrote to memory of 2656	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	103
PID 1376 wrote to memory of 2656	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	103
PID 1376 wrote to memory of 1724	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	105
PID 1376 wrote to memory of 1724	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	105
PID 1376 wrote to memory of 1724	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	105
PID 1376 wrote to memory of 4052	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	107
PID 1376 wrote to memory of 4052	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	107
PID 1376 wrote to memory of 4052	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	107
PID 1376 wrote to memory of 2064	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	109
PID 1376 wrote to memory of 2064	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	109
PID 1376 wrote to memory of 2064	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	109
PID 1376 wrote to memory of 2448	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	111
PID 1376 wrote to memory of 2448	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	111
PID 1376 wrote to memory of 2448	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	111
PID 1376 wrote to memory of 624	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	113
PID 1376 wrote to memory of 624	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	113
PID 1376 wrote to memory of 624	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	113
PID 1376 wrote to memory of 224	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	115
PID 1376 wrote to memory of 224	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	115
PID 1376 wrote to memory of 224	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	115
PID 1376 wrote to memory of 816	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	118
PID 1376 wrote to memory of 816	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	118
PID 1376 wrote to memory of 816	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	118
PID 1376 wrote to memory of 1776	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	119
PID 1376 wrote to memory of 1776	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	119
PID 1376 wrote to memory of 1776	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	119
PID 1376 wrote to memory of 4920	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	121
PID 1376 wrote to memory of 4920	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	121
PID 1376 wrote to memory of 4920	1376	2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe	121

C:\Users\Admin\AppData\Local\Temp\2024-02-01_5936c822665818f9fafa8da9918be949_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_5936c822665818f9fafa8da9918be949_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:1376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2860
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3624
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:968
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4208
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2656
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4052
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2064
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2448
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:624
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:224
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:816
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1776
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4920

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/1376-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1376-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download