gandcrab | 482c73abd78b46e501b9a49ed476fc6dcdd8ec01d2d71c6ac0e377c90b9a49bb

General

Target

2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
Size

145KB
MD5

c87d963880a5c2735b99d1dd46dcb7e5
SHA1

4b1d630715df9879a8ca283e4a77b109381b9e36
SHA256

482c73abd78b46e501b9a49ed476fc6dcdd8ec01d2d71c6ac0e377c90b9a49bb
SHA512

0f24a95df34e7575ee45786420ccdb54f301a6ee1c071b3b3ceb884c1f7b6909b42bb10634f028383f80b76eff5cc3f83fe41a4af884db7bacb824e5b56e30c2
SSDEEP

3072:qYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:qyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4556-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4556-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

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

Detects ransomware indicator 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4556-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/4556-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4556-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/4556-4-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\vstxvqcasac = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe"	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_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

Processes:

2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\G:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_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

Processes:

2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

pid	process
4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe

description	pid	process	target process
PID 4556 wrote to memory of 4944	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4944	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4944	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 2552	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 2552	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 2552	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4612	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4612	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4612	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 1896	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 1896	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 1896	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 2496	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 2496	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 2496	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 460	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 460	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 460	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4244	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4244	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4244	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 3388	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 3388	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 3388	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 1676	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 1676	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 1676	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4644	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4644	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4644	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 3216	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 3216	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 3216	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 5088	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 5088	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 5088	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 5044	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 5044	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 5044	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4036	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4036	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4036	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4832	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4832	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe
PID 4556 wrote to memory of 4832	4556	2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-31_c87d963880a5c2735b99d1dd46dcb7e5_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:4556
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4944
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2552
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1896
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2496
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:460
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4244
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3388
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1676
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3216
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:5088
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:5044
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4036
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4556-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4556-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads