gandcrab | 84daeb1ccf981796fc8dabac89bec3d43b6e044cba4f79cfdcfaf639610a8014

General

Target

2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
Size

77KB
MD5

0b04938c0ebba19cd4f1af2806d3ae74
SHA1

83dc86ff1a453844faaf8cd189d5ac441133104e
SHA256

84daeb1ccf981796fc8dabac89bec3d43b6e044cba4f79cfdcfaf639610a8014
SHA512

55e7d97ca2d67dc1a27afc9f525374f07f0f8b5aeb5c9031503e2f1f5733279a89070147228bf5b47536982d11a561897af59ab0626e5505abd1479f11404c0a
SSDEEP

1536:7gSeGDjnjhnwjyB0yjMqqUM2mr3IdE8mne0Avu5r++yy7CA7GcIaapavdv9:7MSjVneyBbMqqMmr3IdE8we0Avu5r++X

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Extracted

Family

gandcrab

C2

http://gdcbghvjyqy7jclk.onion.top/

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/812-0-0x0000000000400000-0x0000000000417000-memory.dmp	family_gandcrab
behavioral2/memory/812-4-0x0000000000400000-0x0000000000417000-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/812-0-0x0000000000400000-0x0000000000417000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/812-4-0x0000000000400000-0x0000000000417000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/812-0-0x0000000000400000-0x0000000000417000-memory.dmp	Gandcrab
behavioral2/memory/812-4-0x0000000000400000-0x0000000000417000-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:

2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\pfzesofhimq = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe"	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_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:

2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\W:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_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:

2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

pid	process
812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe

description	pid	process	target process
PID 812 wrote to memory of 3208	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 3208	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 3208	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4576	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4576	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4576	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2128	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2128	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2128	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 1000	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 1000	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 1000	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2268	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2268	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2268	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2936	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2936	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2936	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 1572	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 1572	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 1572	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 912	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 912	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 912	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4268	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4268	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4268	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4368	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4368	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4368	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2676	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2676	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2676	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2848	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2848	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 2848	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4480	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4480	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4480	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4944	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4944	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe
PID 812 wrote to memory of 4944	812	2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_0b04938c0ebba19cd4f1af2806d3ae74_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:812

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3208

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4576

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2128

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1000

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2268

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2936

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1572

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:912

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4268

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4368

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2676

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:2848

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4480

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4944

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/812-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/812-4-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads