gandcrab | c5285e3ca6e946c5dec1e3d0fc5359e03ba60fbc6f1d1b068c5d4f3145431974

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2024, 11:08

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General

Target

2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
Size

145KB
MD5

7277c0a89fa1955d9b01ddbbf856d455
SHA1

8365b2b702d4d49307a672350f9b3012e8ad1dd4
SHA256

c5285e3ca6e946c5dec1e3d0fc5359e03ba60fbc6f1d1b068c5d4f3145431974
SHA512

8ffd11b72ebdab8a2a3c9333a46fbd1bad8a56190778633045d0fcfd095cfd6b3537f8c4f29e8b82c6be4e0081e01965d3b2a081628a7b894e66540f6341715d
SSDEEP

3072:HYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:HyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/980-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/980-4-0x0000000000400000-0x0000000000428000-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/980-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/980-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/980-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/980-4-0x0000000000400000-0x0000000000428000-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-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\sefcjcajqid = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe"	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_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)	\??\I:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\T:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\V:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\Y:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\B:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\G:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\J:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\K:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\U:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\W:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\X:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\E:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\H:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\R:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\L:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\M:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\O:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\P:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\Q:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\S:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\Z:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\A:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
File opened (read-only)	\??\N:	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_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	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 980 wrote to memory of 4936	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	88
PID 980 wrote to memory of 4936	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	88
PID 980 wrote to memory of 4936	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	88
PID 980 wrote to memory of 3956	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	100
PID 980 wrote to memory of 3956	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	100
PID 980 wrote to memory of 3956	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	100
PID 980 wrote to memory of 1596	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	103
PID 980 wrote to memory of 1596	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	103
PID 980 wrote to memory of 1596	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	103
PID 980 wrote to memory of 4488	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	107
PID 980 wrote to memory of 4488	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	107
PID 980 wrote to memory of 4488	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	107
PID 980 wrote to memory of 2228	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	109
PID 980 wrote to memory of 2228	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	109
PID 980 wrote to memory of 2228	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	109
PID 980 wrote to memory of 1940	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	117
PID 980 wrote to memory of 1940	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	117
PID 980 wrote to memory of 1940	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	117
PID 980 wrote to memory of 2992	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	119
PID 980 wrote to memory of 2992	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	119
PID 980 wrote to memory of 2992	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	119
PID 980 wrote to memory of 2552	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	125
PID 980 wrote to memory of 2552	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	125
PID 980 wrote to memory of 2552	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	125
PID 980 wrote to memory of 4852	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	127
PID 980 wrote to memory of 4852	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	127
PID 980 wrote to memory of 4852	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	127
PID 980 wrote to memory of 2732	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	133
PID 980 wrote to memory of 2732	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	133
PID 980 wrote to memory of 2732	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	133
PID 980 wrote to memory of 2812	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	136
PID 980 wrote to memory of 2812	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	136
PID 980 wrote to memory of 2812	980	2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe	136

C:\Users\Admin\AppData\Local\Temp\2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_7277c0a89fa1955d9b01ddbbf856d455_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:980
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4936
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3956
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1596
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4488
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2228
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2992
- 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:4852
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2812

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/980-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/980-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download