gandcrab | 571a7ba6f3cdd884ae6eb11bef1213fbbdd695fd13f2b0638e7a2636c0af6ca6

Analysis

max time kernel
143s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 05:27

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General

Target

2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
Size

240KB
MD5

984aa9016692f4ef8930dab8e567887b
SHA1

d86198b4af01bfebc789bb9c8178cc7ff88b6b19
SHA256

571a7ba6f3cdd884ae6eb11bef1213fbbdd695fd13f2b0638e7a2636c0af6ca6
SHA512

b03180aa14e3b359cb177eaa7d3294bf530b207d780230aa0485b573298d57542badf0c548426608e482c632cdc2421a52bcb9a55c140544a648d28b437d49a7
SSDEEP

3072:oYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHkc:oycqqDL6oREzZpEc

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/2376-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/2376-4-0x0000000000400000-0x000000000043C000-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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\eismjfdbvuv = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe"	2024-11-26_984aa9016692f4ef8930dab8e567887b_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)	\??\R:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\B:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2376-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/2376-4-0x0000000000400000-0x000000000043C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 15 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	2024-11-26_984aa9016692f4ef8930dab8e567887b_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
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	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 3740	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	85
PID 2376 wrote to memory of 3740	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	85
PID 2376 wrote to memory of 3740	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	85
PID 2376 wrote to memory of 3556	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	100
PID 2376 wrote to memory of 3556	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	100
PID 2376 wrote to memory of 3556	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	100
PID 2376 wrote to memory of 3168	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	104
PID 2376 wrote to memory of 3168	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	104
PID 2376 wrote to memory of 3168	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	104
PID 2376 wrote to memory of 4868	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	111
PID 2376 wrote to memory of 4868	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	111
PID 2376 wrote to memory of 4868	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	111
PID 2376 wrote to memory of 2920	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	115
PID 2376 wrote to memory of 2920	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	115
PID 2376 wrote to memory of 2920	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	115
PID 2376 wrote to memory of 1904	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	119
PID 2376 wrote to memory of 1904	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	119
PID 2376 wrote to memory of 1904	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	119
PID 2376 wrote to memory of 2768	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	124
PID 2376 wrote to memory of 2768	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	124
PID 2376 wrote to memory of 2768	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	124
PID 2376 wrote to memory of 4952	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	128
PID 2376 wrote to memory of 4952	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	128
PID 2376 wrote to memory of 4952	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	128
PID 2376 wrote to memory of 4888	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	132
PID 2376 wrote to memory of 4888	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	132
PID 2376 wrote to memory of 4888	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	132
PID 2376 wrote to memory of 884	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	136
PID 2376 wrote to memory of 884	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	136
PID 2376 wrote to memory of 884	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	136
PID 2376 wrote to memory of 4176	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	140
PID 2376 wrote to memory of 4176	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	140
PID 2376 wrote to memory of 4176	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	140
PID 2376 wrote to memory of 2952	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	144
PID 2376 wrote to memory of 2952	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	144
PID 2376 wrote to memory of 2952	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	144
PID 2376 wrote to memory of 1208	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	148
PID 2376 wrote to memory of 1208	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	148
PID 2376 wrote to memory of 1208	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	148
PID 2376 wrote to memory of 4156	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	152
PID 2376 wrote to memory of 4156	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	152
PID 2376 wrote to memory of 4156	2376	2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe	152

C:\Users\Admin\AppData\Local\Temp\2024-11-26_984aa9016692f4ef8930dab8e567887b_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-26_984aa9016692f4ef8930dab8e567887b_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:2376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3556
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3168
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1904
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4176
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1208
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4156

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

Replay Monitor

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Downloads

memory/2376-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2376-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download