gandcrab | 6e530e98fef1509368cdd214f77fac78f5a1b10185e4ce0de16f109b5555ae98

Analysis

max time kernel
147s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 15:35

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General

Target

2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
Size

145KB
MD5

4dfbf4af9d41d760e65ee3cbe2b675b8
SHA1

c9cc14fa1dd6d78b39c11c13a47678fff34e0a9f
SHA256

6e530e98fef1509368cdd214f77fac78f5a1b10185e4ce0de16f109b5555ae98
SHA512

fde1b9ca11070ee48b7d7b1f810451f0e8e727db13f7c721e3593e6ee8ec2cdbb6e152ee97f8fe2de1dd39f92fda3b711da08582d601500dfa3ef3634e2048d0
SSDEEP

3072:2YHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:2yOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1828-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/1828-4-0x0000000000400000-0x0000000000428000-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/1828-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/1828-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1828-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/1828-4-0x0000000000400000-0x0000000000428000-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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\nwpltcygdnf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe"	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_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)	\??\X:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\B:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_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	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 3592	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	90
PID 1828 wrote to memory of 3592	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	90
PID 1828 wrote to memory of 3592	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	90
PID 1828 wrote to memory of 2656	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	99
PID 1828 wrote to memory of 2656	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	99
PID 1828 wrote to memory of 2656	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	99
PID 1828 wrote to memory of 1272	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	101
PID 1828 wrote to memory of 1272	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	101
PID 1828 wrote to memory of 1272	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	101
PID 1828 wrote to memory of 5004	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	107
PID 1828 wrote to memory of 5004	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	107
PID 1828 wrote to memory of 5004	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	107
PID 1828 wrote to memory of 3740	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	111
PID 1828 wrote to memory of 3740	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	111
PID 1828 wrote to memory of 3740	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	111
PID 1828 wrote to memory of 4516	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	113
PID 1828 wrote to memory of 4516	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	113
PID 1828 wrote to memory of 4516	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	113
PID 1828 wrote to memory of 4528	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	119
PID 1828 wrote to memory of 4528	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	119
PID 1828 wrote to memory of 4528	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	119
PID 1828 wrote to memory of 712	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	122
PID 1828 wrote to memory of 712	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	122
PID 1828 wrote to memory of 712	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	122
PID 1828 wrote to memory of 4468	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	124
PID 1828 wrote to memory of 4468	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	124
PID 1828 wrote to memory of 4468	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	124
PID 1828 wrote to memory of 3428	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	126
PID 1828 wrote to memory of 3428	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	126
PID 1828 wrote to memory of 3428	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	126
PID 1828 wrote to memory of 2380	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	128
PID 1828 wrote to memory of 2380	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	128
PID 1828 wrote to memory of 2380	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	128
PID 1828 wrote to memory of 1808	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	130
PID 1828 wrote to memory of 1808	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	130
PID 1828 wrote to memory of 1808	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	130
PID 1828 wrote to memory of 2068	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	132
PID 1828 wrote to memory of 2068	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	132
PID 1828 wrote to memory of 2068	1828	2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe	132

C:\Users\Admin\AppData\Local\Temp\2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_4dfbf4af9d41d760e65ee3cbe2b675b8_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:1828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3592
- 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:1272
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:5004
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4516
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4528
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:712
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4468
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3428
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2380
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1808
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2068

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/1828-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1828-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download