gandcrab | ec34b3855c7ce881794544a334f33adb409e7d91a3c588d45c406a8294743e1a

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
18-06-2024 14:46

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General

Target

2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
Size

97KB
MD5

a697b524fc4aad9b1c0191854d05284b
SHA1

a3eb17decad65205788d267da85023104665caa2
SHA256

ec34b3855c7ce881794544a334f33adb409e7d91a3c588d45c406a8294743e1a
SHA512

8ce60735bc4741d3cb49809205b4929cc84cd1a17bb412535af493e9d61286b3f5ea83c24a10104505e03bb97572b2870ff339c427a26fd064e132c7fb29203f
SSDEEP

1536:VZZZZZZZZZZZZpXzzzzzzzzzzzzV9rXounV98hbHnAlMqqU+2bbbAV2/S2LNmHkf:pBounVyFHkMqqDL2/LgHkctc

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3240-0-0x000000000FC00000-0x000000000FC1B000-memory.dmp	family_gandcrab
behavioral2/memory/3240-4-0x000000000FC00000-0x000000000FC1B000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral2/memory/3240-0-0x000000000FC00000-0x000000000FC1B000-memory.dmp upx
behavioral2/memory/3240-4-0x000000000FC00000-0x000000000FC1B000-memory.dmp upx

resource	yara_rule
behavioral2/memory/3240-0-0x000000000FC00000-0x000000000FC1B000-memory.dmp	upx
behavioral2/memory/3240-4-0x000000000FC00000-0x000000000FC1B000-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:

2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\chxvhwnmjfz = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe"	2024-06-18_a697b524fc4aad9b1c0191854d05284b_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:

2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

description	ioc	process
File opened (read-only)	\??\T:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\V:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\Y:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\B:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\H:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\J:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\L:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\O:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\P:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\Q:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\S:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\U:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\W:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\G:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\N:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\A:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\E:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\I:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\K:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\M:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\R:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\X:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
File opened (read-only)	\??\Z:	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.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

Processes:

2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

pid	process
3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe

description	pid	process	target process
PID 3240 wrote to memory of 1940	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 1940	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 1940	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4500	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4500	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4500	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4748	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4748	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4748	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 544	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 544	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 544	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4652	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4652	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4652	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4600	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4600	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4600	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 3580	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 3580	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 3580	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4900	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4900	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe
PID 3240 wrote to memory of 4900	3240	2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-18_a697b524fc4aad9b1c0191854d05284b_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-18_a697b524fc4aad9b1c0191854d05284b_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:3240

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.coin dns1.soprodns.ru
2⤵
PID:1940

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4500

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns2.soprodns.ru
2⤵
PID:4748

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.coin dns2.soprodns.ru
2⤵
PID:544

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns2.soprodns.ru
2⤵
PID:4652

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4600

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.coin dns1.soprodns.ru
2⤵
PID:3580

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4900

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/3240-0-0x000000000FC00000-0x000000000FC1B000-memory.dmp

Filesize
108KB

Download
memory/3240-4-0x000000000FC00000-0x000000000FC1B000-memory.dmp

Filesize
108KB

Download