gandcrab | bc6e501eb8cec81867ae939a4baf5844ae077c617676d640658124f4f7896f42

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
04/04/2024, 23:30

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General

Target

2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
Size

145KB
MD5

4a668f0abb94c8efbe6aa91dd833ba21
SHA1

4bd985b764ff877001dd8e77fa7cbe8ae0ce8e12
SHA256

bc6e501eb8cec81867ae939a4baf5844ae077c617676d640658124f4f7896f42
SHA512

419141158e433bb0781785ff7c67cccce004c88043fbbffd704baf0343aecc4f6b4520601972bf9ce6b9e5d9059e7171ea662eb420ef11b604cc4fc87705ac17
SSDEEP

3072:JYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:JyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/2328-4-0x0000000000400000-0x0000000000428000-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
behavioral1/memory/2328-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2328-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral1/memory/2328-4-0x0000000000400000-0x0000000000428000-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-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\tgkebeanrhc = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe"	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_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:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\M:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\P:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\W:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\X:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\Y:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\A:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\B:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\E:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\G:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\Q:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\Z:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\I:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\J:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\L:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\O:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\R:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\V:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\K:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\N:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\S:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\T:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
File opened (read-only)	\??\U:	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2996	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	28
PID 2328 wrote to memory of 2996	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	28
PID 2328 wrote to memory of 2996	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	28
PID 2328 wrote to memory of 2996	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	28
PID 2328 wrote to memory of 2876	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	31
PID 2328 wrote to memory of 2876	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	31
PID 2328 wrote to memory of 2876	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	31
PID 2328 wrote to memory of 2876	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	31
PID 2328 wrote to memory of 2776	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	33
PID 2328 wrote to memory of 2776	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	33
PID 2328 wrote to memory of 2776	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	33
PID 2328 wrote to memory of 2776	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	33
PID 2328 wrote to memory of 2704	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	35
PID 2328 wrote to memory of 2704	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	35
PID 2328 wrote to memory of 2704	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	35
PID 2328 wrote to memory of 2704	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	35
PID 2328 wrote to memory of 2464	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	38
PID 2328 wrote to memory of 2464	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	38
PID 2328 wrote to memory of 2464	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	38
PID 2328 wrote to memory of 2464	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	38
PID 2328 wrote to memory of 2780	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	41
PID 2328 wrote to memory of 2780	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	41
PID 2328 wrote to memory of 2780	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	41
PID 2328 wrote to memory of 2780	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	41
PID 2328 wrote to memory of 300	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	43
PID 2328 wrote to memory of 300	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	43
PID 2328 wrote to memory of 300	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	43
PID 2328 wrote to memory of 300	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	43
PID 2328 wrote to memory of 1444	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	45
PID 2328 wrote to memory of 1444	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	45
PID 2328 wrote to memory of 1444	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	45
PID 2328 wrote to memory of 1444	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	45
PID 2328 wrote to memory of 2664	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	47
PID 2328 wrote to memory of 2664	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	47
PID 2328 wrote to memory of 2664	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	47
PID 2328 wrote to memory of 2664	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	47
PID 2328 wrote to memory of 1116	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	49
PID 2328 wrote to memory of 1116	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	49
PID 2328 wrote to memory of 1116	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	49
PID 2328 wrote to memory of 1116	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	49
PID 2328 wrote to memory of 2848	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	51
PID 2328 wrote to memory of 2848	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	51
PID 2328 wrote to memory of 2848	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	51
PID 2328 wrote to memory of 2848	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	51
PID 2328 wrote to memory of 1796	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	53
PID 2328 wrote to memory of 1796	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	53
PID 2328 wrote to memory of 1796	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	53
PID 2328 wrote to memory of 1796	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	53
PID 2328 wrote to memory of 1784	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	55
PID 2328 wrote to memory of 1784	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	55
PID 2328 wrote to memory of 1784	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	55
PID 2328 wrote to memory of 1784	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	55
PID 2328 wrote to memory of 1844	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	57
PID 2328 wrote to memory of 1844	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	57
PID 2328 wrote to memory of 1844	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	57
PID 2328 wrote to memory of 1844	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	57
PID 2328 wrote to memory of 832	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	59
PID 2328 wrote to memory of 832	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	59
PID 2328 wrote to memory of 832	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	59
PID 2328 wrote to memory of 832	2328	2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe	59

C:\Users\Admin\AppData\Local\Temp\2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-04_4a668f0abb94c8efbe6aa91dd833ba21_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:2328
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2996
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2776
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2464
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2780
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:300
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1444
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2664
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1116
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2848
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1796
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1784
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1844
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:832

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/2328-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2328-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download