gandcrab | 4331cae9c9d41849a5dee1eef5baabb0361fd34abffd09efb2f8eca2de4129d2

Analysis

max time kernel
151s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 09:48

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General

Target

2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
Size

145KB
MD5

e8de18fd73511aa4a7753be0a2e58bc7
SHA1

bb4476b8a1c923dd431ca2958bdd12ea92938894
SHA256

4331cae9c9d41849a5dee1eef5baabb0361fd34abffd09efb2f8eca2de4129d2
SHA512

ed96dbd3e1b39a2ad3a641f78d5d0f22e17a340f8a51adb1f822e0443a705e65546c76d74e4402399e7f9da6379d289bf252b68a30f39b9e2a2760ca24f45463
SSDEEP

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

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/3248-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/3248-4-0x0000000000400000-0x0000000000428000-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/3248-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/3248-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3248-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/3248-4-0x0000000000400000-0x0000000000428000-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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ajtaqoxddyd = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe"	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_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)	\??\G:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\K:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\Q:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\U:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\B:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\E:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\H:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\J:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\L:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\M:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\R:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\V:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\A:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\Y:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\Z:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\W:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\N:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\O:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\P:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\S:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\X:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\I:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
File opened (read-only)	\??\T:	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_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	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 4508	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	89
PID 3248 wrote to memory of 4508	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	89
PID 3248 wrote to memory of 4508	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	89
PID 3248 wrote to memory of 3964	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	98
PID 3248 wrote to memory of 3964	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	98
PID 3248 wrote to memory of 3964	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	98
PID 3248 wrote to memory of 2132	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	101
PID 3248 wrote to memory of 2132	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	101
PID 3248 wrote to memory of 2132	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	101
PID 3248 wrote to memory of 3164	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	103
PID 3248 wrote to memory of 3164	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	103
PID 3248 wrote to memory of 3164	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	103
PID 3248 wrote to memory of 3196	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	105
PID 3248 wrote to memory of 3196	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	105
PID 3248 wrote to memory of 3196	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	105
PID 3248 wrote to memory of 3116	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	107
PID 3248 wrote to memory of 3116	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	107
PID 3248 wrote to memory of 3116	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	107
PID 3248 wrote to memory of 1336	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	109
PID 3248 wrote to memory of 1336	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	109
PID 3248 wrote to memory of 1336	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	109
PID 3248 wrote to memory of 3252	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	111
PID 3248 wrote to memory of 3252	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	111
PID 3248 wrote to memory of 3252	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	111
PID 3248 wrote to memory of 3000	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	113
PID 3248 wrote to memory of 3000	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	113
PID 3248 wrote to memory of 3000	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	113
PID 3248 wrote to memory of 3320	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	115
PID 3248 wrote to memory of 3320	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	115
PID 3248 wrote to memory of 3320	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	115
PID 3248 wrote to memory of 2020	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	117
PID 3248 wrote to memory of 2020	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	117
PID 3248 wrote to memory of 2020	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	117
PID 3248 wrote to memory of 3612	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	119
PID 3248 wrote to memory of 3612	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	119
PID 3248 wrote to memory of 3612	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	119
PID 3248 wrote to memory of 4300	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	121
PID 3248 wrote to memory of 4300	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	121
PID 3248 wrote to memory of 4300	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	121
PID 3248 wrote to memory of 4200	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	123
PID 3248 wrote to memory of 4200	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	123
PID 3248 wrote to memory of 4200	3248	2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe	123

C:\Users\Admin\AppData\Local\Temp\2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e8de18fd73511aa4a7753be0a2e58bc7_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:3248
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4508
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3964
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2132
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3164
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3196
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3116
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1336
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3252
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3000
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3320
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4300
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4200

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/3248-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3248-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download