gandcrab | a79efce9b540b027508f67208762cba00643d2980ac34b57714d522e410c2b34

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2024 02:10

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General

Target

2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
Size

240KB
MD5

397b9af324512eeb6a86d2964376d335
SHA1

bad975b221cc8ee2ffb1351a8855f084d4e11fcd
SHA256

a79efce9b540b027508f67208762cba00643d2980ac34b57714d522e410c2b34
SHA512

16da96e27a8cfd77f733acde1a532cb1b42fb3b32db57d3d5e65f81cdaa1a24a9c7a20d80d99ffe68691a2a6eedc374c2351cb72a5ae3e7691931832142b8dbf
SSDEEP

3072:SYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:SycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/1092-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/1092-4-0x0000000000400000-0x000000000043C000-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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\htygsfhdmqy = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe"	2024-11-17_397b9af324512eeb6a86d2964376d335_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)	\??\V:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\B:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\K:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1092-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/1092-4-0x0000000000400000-0x000000000043C000-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	2024-11-17_397b9af324512eeb6a86d2964376d335_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

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	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 3732	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	87
PID 1092 wrote to memory of 3732	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	87
PID 1092 wrote to memory of 3732	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	87
PID 1092 wrote to memory of 4972	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	102
PID 1092 wrote to memory of 4972	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	102
PID 1092 wrote to memory of 4972	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	102
PID 1092 wrote to memory of 4048	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	106
PID 1092 wrote to memory of 4048	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	106
PID 1092 wrote to memory of 4048	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	106
PID 1092 wrote to memory of 4052	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	111
PID 1092 wrote to memory of 4052	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	111
PID 1092 wrote to memory of 4052	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	111
PID 1092 wrote to memory of 2724	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	115
PID 1092 wrote to memory of 2724	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	115
PID 1092 wrote to memory of 2724	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	115
PID 1092 wrote to memory of 1404	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	119
PID 1092 wrote to memory of 1404	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	119
PID 1092 wrote to memory of 1404	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	119
PID 1092 wrote to memory of 2136	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	122
PID 1092 wrote to memory of 2136	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	122
PID 1092 wrote to memory of 2136	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	122
PID 1092 wrote to memory of 3432	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	125
PID 1092 wrote to memory of 3432	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	125
PID 1092 wrote to memory of 3432	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	125
PID 1092 wrote to memory of 2076	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	129
PID 1092 wrote to memory of 2076	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	129
PID 1092 wrote to memory of 2076	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	129
PID 1092 wrote to memory of 4748	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	132
PID 1092 wrote to memory of 4748	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	132
PID 1092 wrote to memory of 4748	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	132
PID 1092 wrote to memory of 704	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	136
PID 1092 wrote to memory of 704	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	136
PID 1092 wrote to memory of 704	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	136
PID 1092 wrote to memory of 2264	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	140
PID 1092 wrote to memory of 2264	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	140
PID 1092 wrote to memory of 2264	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	140
PID 1092 wrote to memory of 2240	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	144
PID 1092 wrote to memory of 2240	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	144
PID 1092 wrote to memory of 2240	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	144
PID 1092 wrote to memory of 2172	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	148
PID 1092 wrote to memory of 2172	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	148
PID 1092 wrote to memory of 2172	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	148
PID 1092 wrote to memory of 4864	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	152
PID 1092 wrote to memory of 4864	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	152
PID 1092 wrote to memory of 4864	1092	2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe	152

C:\Users\Admin\AppData\Local\Temp\2024-11-17_397b9af324512eeb6a86d2964376d335_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-17_397b9af324512eeb6a86d2964376d335_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:1092
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4052
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1404
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3432
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:704
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4864

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/1092-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1092-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download