gandcrab | 87b1c6ccaca420ae9825dc46ce9a2fcfc23dc5a5cb159b686ba46b4cf09d4414

Analysis

max time kernel
143s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 02:43

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General

Target

2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
Size

240KB
MD5

6632b84a7caa0f9a7a5d83423ef3d0b7
SHA1

b806248bb04306990ad1bf1e3de9b8af10f3dd8b
SHA256

87b1c6ccaca420ae9825dc46ce9a2fcfc23dc5a5cb159b686ba46b4cf09d4414
SHA512

2bdeefad817489cdd163b2dec87eae5d4ca7a3d6cddcf872e2ca03e61f555cb0491a81601910d64762d0a3e0a74c9b211173de3f5bdfcd2a2de1e3ce1810e771
SSDEEP

3072:NYHVHd2NwMqqDL2/mr3IdE8we0Avu5r++ygLIaa4jRv9OtNZpHk:NycqqDL6oREzZpE

Score

10^/10

gandcrab backdoor discovery persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/2152-0-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral2/memory/2152-4-0x0000000000400000-0x000000000043C000-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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\celbaujlbcn = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe"	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_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)	\??\K:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\Q:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\X:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\M:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\O:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\P:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\U:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\Y:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\A:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\H:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\J:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\Z:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\N:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\R:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\S:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\G:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\I:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\L:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\V:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\W:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\B:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\E:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
File opened (read-only)	\??\T:	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2152-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/2152-4-0x0000000000400000-0x000000000043C000-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	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	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_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

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	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 4880	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	82
PID 2152 wrote to memory of 4880	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	82
PID 2152 wrote to memory of 4880	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	82
PID 2152 wrote to memory of 2668	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	88
PID 2152 wrote to memory of 2668	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	88
PID 2152 wrote to memory of 2668	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	88
PID 2152 wrote to memory of 1904	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	93
PID 2152 wrote to memory of 1904	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	93
PID 2152 wrote to memory of 1904	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	93
PID 2152 wrote to memory of 3128	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	97
PID 2152 wrote to memory of 3128	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	97
PID 2152 wrote to memory of 3128	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	97
PID 2152 wrote to memory of 1592	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	99
PID 2152 wrote to memory of 1592	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	99
PID 2152 wrote to memory of 1592	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	99
PID 2152 wrote to memory of 2852	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	101
PID 2152 wrote to memory of 2852	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	101
PID 2152 wrote to memory of 2852	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	101
PID 2152 wrote to memory of 1800	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	103
PID 2152 wrote to memory of 1800	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	103
PID 2152 wrote to memory of 1800	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	103
PID 2152 wrote to memory of 2360	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	105
PID 2152 wrote to memory of 2360	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	105
PID 2152 wrote to memory of 2360	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	105
PID 2152 wrote to memory of 3180	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	107
PID 2152 wrote to memory of 3180	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	107
PID 2152 wrote to memory of 3180	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	107
PID 2152 wrote to memory of 1560	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	109
PID 2152 wrote to memory of 1560	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	109
PID 2152 wrote to memory of 1560	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	109
PID 2152 wrote to memory of 4888	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	111
PID 2152 wrote to memory of 4888	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	111
PID 2152 wrote to memory of 4888	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	111
PID 2152 wrote to memory of 2148	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	113
PID 2152 wrote to memory of 2148	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	113
PID 2152 wrote to memory of 2148	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	113
PID 2152 wrote to memory of 4736	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	115
PID 2152 wrote to memory of 4736	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	115
PID 2152 wrote to memory of 4736	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	115
PID 2152 wrote to memory of 4436	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	117
PID 2152 wrote to memory of 4436	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	117
PID 2152 wrote to memory of 4436	2152	2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe	117

C:\Users\Admin\AppData\Local\Temp\2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-30_6632b84a7caa0f9a7a5d83423ef3d0b7_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:2152
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- 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:3128
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1592
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1800
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2360
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3180
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4736
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4436

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/2152-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2152-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download