gandcrab | 7536afd9f5d7fafc5e3ac64f5911737b8438a73f499d991f2959eae41930e23c

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 02:37

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General

Target

2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
Size

167KB
MD5

e2a09a09f0fa4d13dd3fe8886f40a089
SHA1

1d86f84cd12514c935c4964819431124e1174ff6
SHA256

7536afd9f5d7fafc5e3ac64f5911737b8438a73f499d991f2959eae41930e23c
SHA512

b0936942b0b4b6ddca459f7f553d9e6967017aec8bc92ae16a3f78cd15d5cb1a037eedce15eae455774b6dabb9c55d0aed01adfb6a89f0ed723a29511ebc0da2
SSDEEP

3072:GYHVHd2NpMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpek:GyRqqDL6oREzZpl

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/2392-0-0x0000000000400000-0x000000000042C000-memory.dmp	family_gandcrab
behavioral2/memory/2392-4-0x0000000000400000-0x000000000042C000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\rfrusggchon = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe"	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_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)	\??\A:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\B:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2392-0-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral2/memory/2392-4-0x0000000000400000-0x000000000042C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 16 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	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	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.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	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2224	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	83
PID 2392 wrote to memory of 2224	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	83
PID 2392 wrote to memory of 2224	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	83
PID 2392 wrote to memory of 3312	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	99
PID 2392 wrote to memory of 3312	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	99
PID 2392 wrote to memory of 3312	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	99
PID 2392 wrote to memory of 688	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	102
PID 2392 wrote to memory of 688	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	102
PID 2392 wrote to memory of 688	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	102
PID 2392 wrote to memory of 4876	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	108
PID 2392 wrote to memory of 4876	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	108
PID 2392 wrote to memory of 4876	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	108
PID 2392 wrote to memory of 396	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	112
PID 2392 wrote to memory of 396	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	112
PID 2392 wrote to memory of 396	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	112
PID 2392 wrote to memory of 4320	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	115
PID 2392 wrote to memory of 4320	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	115
PID 2392 wrote to memory of 4320	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	115
PID 2392 wrote to memory of 4404	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	119
PID 2392 wrote to memory of 4404	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	119
PID 2392 wrote to memory of 4404	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	119
PID 2392 wrote to memory of 4048	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	122
PID 2392 wrote to memory of 4048	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	122
PID 2392 wrote to memory of 4048	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	122
PID 2392 wrote to memory of 4536	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	126
PID 2392 wrote to memory of 4536	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	126
PID 2392 wrote to memory of 4536	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	126
PID 2392 wrote to memory of 4012	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	130
PID 2392 wrote to memory of 4012	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	130
PID 2392 wrote to memory of 4012	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	130
PID 2392 wrote to memory of 3948	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	134
PID 2392 wrote to memory of 3948	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	134
PID 2392 wrote to memory of 3948	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	134
PID 2392 wrote to memory of 2388	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	138
PID 2392 wrote to memory of 2388	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	138
PID 2392 wrote to memory of 2388	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	138
PID 2392 wrote to memory of 2604	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	141
PID 2392 wrote to memory of 2604	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	141
PID 2392 wrote to memory of 2604	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	141
PID 2392 wrote to memory of 2876	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	145
PID 2392 wrote to memory of 2876	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	145
PID 2392 wrote to memory of 2876	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	145
PID 2392 wrote to memory of 5100	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	149
PID 2392 wrote to memory of 5100	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	149
PID 2392 wrote to memory of 5100	2392	2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe	149

C:\Users\Admin\AppData\Local\Temp\2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_e2a09a09f0fa4d13dd3fe8886f40a089_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:2392
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3312
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:688
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:396
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4320
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4404
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4536
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4012
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3948
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5100

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/2392-0-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2392-4-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download