gandcrab | 8ba99ea70d32ca0fc244aca7aaed62a20c06fa8c61bf8f87cc41b42076f4924c

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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
behavioral1/memory/2300-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/2300-4-0x0000000000400000-0x0000000000428000-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
behavioral1/memory/2300-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/2300-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral1/memory/2300-4-0x0000000000400000-0x0000000000428000-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-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\eizjuwamrsw = "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)	\??\B:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\E:	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)	\??\R:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\W:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\A:	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)	\??\U:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\G:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\H:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\N:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\O:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\S:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\V:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\Z:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\I:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\K:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\L:	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
File opened (read-only)	\??\T:	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

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 2 IoCs

pid	Process
2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe
2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2776	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	28
PID 2300 wrote to memory of 2776	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	28
PID 2300 wrote to memory of 2776	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	28
PID 2300 wrote to memory of 2776	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	28
PID 2300 wrote to memory of 2688	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	31
PID 2300 wrote to memory of 2688	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	31
PID 2300 wrote to memory of 2688	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	31
PID 2300 wrote to memory of 2688	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	31
PID 2300 wrote to memory of 2736	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	33
PID 2300 wrote to memory of 2736	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	33
PID 2300 wrote to memory of 2736	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	33
PID 2300 wrote to memory of 2736	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	33
PID 2300 wrote to memory of 2644	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	35
PID 2300 wrote to memory of 2644	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	35
PID 2300 wrote to memory of 2644	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	35
PID 2300 wrote to memory of 2644	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	35
PID 2300 wrote to memory of 1864	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	39
PID 2300 wrote to memory of 1864	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	39
PID 2300 wrote to memory of 1864	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	39
PID 2300 wrote to memory of 1864	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	39
PID 2300 wrote to memory of 2756	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	41
PID 2300 wrote to memory of 2756	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	41
PID 2300 wrote to memory of 2756	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	41
PID 2300 wrote to memory of 2756	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	41
PID 2300 wrote to memory of 2884	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	43
PID 2300 wrote to memory of 2884	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	43
PID 2300 wrote to memory of 2884	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	43
PID 2300 wrote to memory of 2884	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	43
PID 2300 wrote to memory of 1868	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	45
PID 2300 wrote to memory of 1868	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	45
PID 2300 wrote to memory of 1868	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	45
PID 2300 wrote to memory of 1868	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	45
PID 2300 wrote to memory of 3004	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	47
PID 2300 wrote to memory of 3004	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	47
PID 2300 wrote to memory of 3004	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	47
PID 2300 wrote to memory of 3004	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	47
PID 2300 wrote to memory of 1380	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	49
PID 2300 wrote to memory of 1380	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	49
PID 2300 wrote to memory of 1380	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	49
PID 2300 wrote to memory of 1380	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	49
PID 2300 wrote to memory of 584	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	51
PID 2300 wrote to memory of 584	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	51
PID 2300 wrote to memory of 584	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	51
PID 2300 wrote to memory of 584	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	51
PID 2300 wrote to memory of 1032	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	53
PID 2300 wrote to memory of 1032	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	53
PID 2300 wrote to memory of 1032	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	53
PID 2300 wrote to memory of 1032	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	53
PID 2300 wrote to memory of 2344	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	55
PID 2300 wrote to memory of 2344	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	55
PID 2300 wrote to memory of 2344	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	55
PID 2300 wrote to memory of 2344	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	55
PID 2300 wrote to memory of 572	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	57
PID 2300 wrote to memory of 572	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	57
PID 2300 wrote to memory of 572	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	57
PID 2300 wrote to memory of 572	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	57
PID 2300 wrote to memory of 1008	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	59
PID 2300 wrote to memory of 1008	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	59
PID 2300 wrote to memory of 1008	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	59
PID 2300 wrote to memory of 1008	2300	2024-02-12_92e9796dd5670d07801eeebc14d1f4ee_gandcrab.exe	59

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:2300
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2776
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2688
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2736
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1864
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1868
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3004
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1380
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:584
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1032
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2344
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:572
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1008

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/2300-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2300-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download