gandcrab | 8ba99ea70d32ca0fc244aca7aaed62a20c06fa8c61bf8f87cc41b42076f4924c

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 14:40

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General

Target

2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
Size

145KB
MD5

92e9796dd5670d07801eeebc14d1f4ee
SHA1

8a2f2f3055c027e90240396bf62a49aa76b19712
SHA256

8ba99ea70d32ca0fc244aca7aaed62a20c06fa8c61bf8f87cc41b42076f4924c
SHA512

f150768dc981013ec6956ca6efdd5a7a34ab3dc2360561805fd1aa1e6b4aef22615dac6bccf8daaf86832bf7b4288a72d14b41353a3830c4fa7cc37d2322ab73
SSDEEP

3072:vYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:vyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/3528-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/3528-4-0x0000000000400000-0x0000000000428000-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/3528-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/3528-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3528-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/3528-4-0x0000000000400000-0x0000000000428000-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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\jkuxoaxjfky = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe"	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_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)	\??\L:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\R:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\X:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\Y:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\H:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\K:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\P:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\Q:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\S:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\J:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\M:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\I:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\O:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\A:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\E:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\N:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\T:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\U:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\V:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\W:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\Z:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\B:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\G:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_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	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 3688	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	83
PID 3528 wrote to memory of 3688	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	83
PID 3528 wrote to memory of 3688	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	83
PID 3528 wrote to memory of 1168	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	90
PID 3528 wrote to memory of 1168	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	90
PID 3528 wrote to memory of 1168	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	90
PID 3528 wrote to memory of 220	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	94
PID 3528 wrote to memory of 220	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	94
PID 3528 wrote to memory of 220	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	94
PID 3528 wrote to memory of 1060	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	97
PID 3528 wrote to memory of 1060	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	97
PID 3528 wrote to memory of 1060	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	97
PID 3528 wrote to memory of 1724	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	99
PID 3528 wrote to memory of 1724	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	99
PID 3528 wrote to memory of 1724	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	99
PID 3528 wrote to memory of 3412	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	101
PID 3528 wrote to memory of 3412	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	101
PID 3528 wrote to memory of 3412	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	101
PID 3528 wrote to memory of 224	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	103
PID 3528 wrote to memory of 224	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	103
PID 3528 wrote to memory of 224	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	103
PID 3528 wrote to memory of 5088	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	105
PID 3528 wrote to memory of 5088	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	105
PID 3528 wrote to memory of 5088	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	105
PID 3528 wrote to memory of 1828	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	107
PID 3528 wrote to memory of 1828	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	107
PID 3528 wrote to memory of 1828	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	107
PID 3528 wrote to memory of 2372	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	109
PID 3528 wrote to memory of 2372	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	109
PID 3528 wrote to memory of 2372	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	109
PID 3528 wrote to memory of 2780	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	111
PID 3528 wrote to memory of 2780	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	111
PID 3528 wrote to memory of 2780	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	111
PID 3528 wrote to memory of 5048	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	113
PID 3528 wrote to memory of 5048	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	113
PID 3528 wrote to memory of 5048	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	113
PID 3528 wrote to memory of 4460	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	115
PID 3528 wrote to memory of 4460	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	115
PID 3528 wrote to memory of 4460	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	115
PID 3528 wrote to memory of 1500	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	117
PID 3528 wrote to memory of 1500	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	117
PID 3528 wrote to memory of 1500	3528	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	117

C:\Users\Admin\AppData\Local\Temp\2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_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:3528
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3688
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1168
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1060
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3412
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:224
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:5088
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2372
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2780
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:5048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4460
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1500

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/3528-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3528-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download