gandcrab | 4f8eff928fa3eb3f1d92e0d61d8aeae52abed2fab78576c2b4c9d9b8a4f4aeab

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 04:11

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General

Target

2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
Size

120KB
MD5

4249b828e7d3dce962e25492896087aa
SHA1

16ef5cd64eba075dd8c8e1b75e30bac3dfe1ed82
SHA256

4f8eff928fa3eb3f1d92e0d61d8aeae52abed2fab78576c2b4c9d9b8a4f4aeab
SHA512

a044fc430d377a98d9eddb4d772618bd9a0811bd214e21cedeb41c1fb2d1c2240ed9fe48a479b0a2655db77c6e94bb17db93664df4019bea4b705f800974df66
SSDEEP

3072:yMSjOnrmBiMqqDL2/mr3IdE8we0Avu5r++ygLIaagvd5oJpbAyBYnOnHkhkPmrpp:yXjOnr6hqqDL64vdDyCOH+Qmrpp

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Extracted

Family

gandcrab

http://gdcbghvjyqy7jclk.onion.top/

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/3784-0-0x00000000006A0000-0x00000000006BC000-memory.dmp	family_gandcrab
behavioral2/memory/3784-4-0x00000000006A0000-0x00000000006BC000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Gandcrab family
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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\pokyqudwwgw = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe"	2025-01-04_4249b828e7d3dce962e25492896087aa_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)	\??\H:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\K:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\Q:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\T:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\W:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\U:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\Y:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\A:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\E:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\I:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\O:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\R:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\B:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\J:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\M:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\N:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\P:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\Z:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\G:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\L:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\S:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\V:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
File opened (read-only)	\??\X:	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe

System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nslookup.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	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3784 wrote to memory of 3948	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	83
PID 3784 wrote to memory of 3948	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	83
PID 3784 wrote to memory of 3948	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	83
PID 3784 wrote to memory of 3156	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	86
PID 3784 wrote to memory of 3156	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	86
PID 3784 wrote to memory of 3156	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	86
PID 3784 wrote to memory of 4220	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	103
PID 3784 wrote to memory of 4220	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	103
PID 3784 wrote to memory of 4220	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	103
PID 3784 wrote to memory of 220	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	110
PID 3784 wrote to memory of 220	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	110
PID 3784 wrote to memory of 220	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	110
PID 3784 wrote to memory of 1616	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	114
PID 3784 wrote to memory of 1616	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	114
PID 3784 wrote to memory of 1616	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	114
PID 3784 wrote to memory of 3808	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	118
PID 3784 wrote to memory of 3808	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	118
PID 3784 wrote to memory of 3808	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	118
PID 3784 wrote to memory of 1028	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	121
PID 3784 wrote to memory of 1028	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	121
PID 3784 wrote to memory of 1028	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	121
PID 3784 wrote to memory of 1924	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	125
PID 3784 wrote to memory of 1924	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	125
PID 3784 wrote to memory of 1924	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	125
PID 3784 wrote to memory of 2408	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	129
PID 3784 wrote to memory of 2408	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	129
PID 3784 wrote to memory of 2408	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	129
PID 3784 wrote to memory of 4888	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	133
PID 3784 wrote to memory of 4888	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	133
PID 3784 wrote to memory of 4888	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	133
PID 3784 wrote to memory of 840	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	137
PID 3784 wrote to memory of 840	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	137
PID 3784 wrote to memory of 840	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	137
PID 3784 wrote to memory of 1172	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	141
PID 3784 wrote to memory of 1172	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	141
PID 3784 wrote to memory of 1172	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	141
PID 3784 wrote to memory of 4596	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	145
PID 3784 wrote to memory of 4596	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	145
PID 3784 wrote to memory of 4596	3784	2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe	145

C:\Users\Admin\AppData\Local\Temp\2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-04_4249b828e7d3dce962e25492896087aa_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3784
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3948
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3156
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1616
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3808
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1172
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4596

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3784-0-0x00000000006A0000-0x00000000006BC000-memory.dmp

Filesize
112KB

Download
memory/3784-4-0x00000000006A0000-0x00000000006BC000-memory.dmp

Filesize
112KB

Download