gandcrab | 506c50d25574a836a380c4cf9371282554f9636c9ad37e1c3456390487af417c

Resubmissions

01-07-2024 11:04

240701-m6eabs1dmq 10

01-07-2024 10:46

240701-mvbeaszgmr 10

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 11:04

Sharing

Copy URL

Twitter E-mail

Reason

Machine shutdown

Report Analysis Logs

General

Target

2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Size

97KB
MD5

bd7ee23b22fb3423107a0df21e5ce168
SHA1

7ebb5d065468d4f977d51dc0b981dce0c2e1424b
SHA256

506c50d25574a836a380c4cf9371282554f9636c9ad37e1c3456390487af417c
SHA512

5e0092f6bc4321a97a97fe5f3cdbb0a53ea0d9161b03e6143cbcc3a12b5796c03e50c1bb6e8d1cccc7b3694c6f0024dd7f9c707c20f4e5597782113c1bf0a6fe
SSDEEP

1536:3ZZZZZZZZZZZZpXzzzzzzzzzzzzV9rXounV98hbHnAlMqqU+2bbbAV2/S2LNmHkf:/BounVyFHkMqqDL2/LgHkctc

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2356-0-0x000000000F430000-0x000000000F44B000-memory.dmp	family_gandcrab
behavioral1/memory/2356-4-0x000000000F430000-0x000000000F44B000-memory.dmp	family_gandcrab
behavioral1/memory/808-5-0x000000000F430000-0x000000000F44B000-memory.dmp	family_gandcrab
behavioral1/memory/2104-6-0x000000000F430000-0x000000000F44B000-memory.dmp	family_gandcrab
behavioral1/memory/2356-7-0x000000000F430000-0x000000000F44B000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2356-0-0x000000000F430000-0x000000000F44B000-memory.dmp	upx
behavioral1/memory/2356-4-0x000000000F430000-0x000000000F44B000-memory.dmp	upx
behavioral1/memory/808-5-0x000000000F430000-0x000000000F44B000-memory.dmp	upx
behavioral1/memory/2104-6-0x000000000F430000-0x000000000F44B000-memory.dmp	upx
behavioral1/memory/2356-7-0x000000000F430000-0x000000000F44B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\kigfymjjwbk = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_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

Processes:

2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\S:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\W:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\Y:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\H:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\P:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\O:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\Q:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\Z:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\I:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\K:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\L:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\M:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\N:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\R:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\U:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\V:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\B:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\J:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\G:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\T:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\X:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\A:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
File opened (read-only)	\??\E:	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

Checks processor information in registry 2 TTPs 18 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "233"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

pid	process
2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

3276 LogonUI.exe

pid	process
3276	LogonUI.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe

description	pid	process	target process
PID 2356 wrote to memory of 1704	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 1704	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 1704	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 1484	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 1484	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 1484	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 4416	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 4416	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 4416	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 4808	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 4808	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 4808	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 2176	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 2176	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe
PID 2356 wrote to memory of 2176	2356	2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.coin dns1.soprodns.ru
2⤵
PID:1704

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:1484

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns2.soprodns.ru
2⤵
PID:4416

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.coin dns2.soprodns.ru
2⤵
PID:4808

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns2.soprodns.ru
2⤵
PID:2176

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1372

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"
1⤵
- Checks processor information in registry
PID:808

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"
1⤵
- Checks processor information in registry
PID:2104

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"
1⤵
- Checks processor information in registry
PID:1404

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"
1⤵
- Checks processor information in registry
PID:1520

C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_bd7ee23b22fb3423107a0df21e5ce168_gandcrab.exe"
1⤵
- Checks processor information in registry
PID:3488

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ae855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3276

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads

memory/808-5-0x000000000F430000-0x000000000F44B000-memory.dmp

Filesize
108KB

Download
memory/2104-6-0x000000000F430000-0x000000000F44B000-memory.dmp

Filesize
108KB

Download
memory/2356-0-0x000000000F430000-0x000000000F44B000-memory.dmp

Filesize
108KB

Download
memory/2356-4-0x000000000F430000-0x000000000F44B000-memory.dmp

Filesize
108KB

Download
memory/2356-7-0x000000000F430000-0x000000000F44B000-memory.dmp

Filesize
108KB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads