gandcrab | 1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256

Analysis

max time kernel
143s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
04-07-2024 09:08

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General

Target

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
Size

61KB
MD5

59ed2e7bbea3ae874ac576710c9ac030
SHA1

1a15e360d1c9531968f778f081d7012cfde5d3d3
SHA256

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256
SHA512

6af1fa504dee85cec1a088c00a1732df10a1c79e1372fe156dd6968dcc5cf2757c11ff36bd91528794f909292c9d9d36f39dfe0bed02e52e9c33fe353192a1da
SSDEEP

768:wIhkrfEHkPYixQ8eLt80aO6eeoeU0jYB3LCJxNJzdZW/lIsZ7ykcZS:wCkLEHkQ/QO6eey72JxzsZ7yw

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 13 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4040-4-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-5-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-6-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-7-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-8-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-9-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-10-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-11-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-12-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-13-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-14-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-15-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab
behavioral2/memory/4040-17-0x0000000000400000-0x000000000042B000-memory.dmp	family_gandcrab

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

UPX packed file 14 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4040-0-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-4-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-5-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-6-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-7-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-8-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-9-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-10-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-11-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-12-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-13-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-14-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-15-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/4040-17-0x0000000000400000-0x000000000042B000-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:

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\bklcenxeyvr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe"	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.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:

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

description	ioc	process
File opened (read-only)	\??\X:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\H:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\I:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\L:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\N:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\R:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\S:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\W:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\Y:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\K:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\Q:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\B:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\G:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\J:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\M:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\P:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\A:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\E:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\O:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\T:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\U:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\V:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
File opened (read-only)	\??\Z:	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.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:

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

pid	process
4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe

description	pid	process	target process
PID 4040 wrote to memory of 3672	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3672	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3672	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 2012	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 2012	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 2012	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3076	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3076	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3076	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 2624	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 2624	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 2624	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4336	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4336	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4336	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3368	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3368	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3368	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4376	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4376	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4376	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 1524	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 1524	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 1524	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4660	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4660	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4660	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 8	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 8	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 8	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3252	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3252	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 3252	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4344	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4344	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4344	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4864	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4864	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4864	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4648	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4648	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe
PID 4040 wrote to memory of 4648	4040	1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe
"C:\Users\Admin\AppData\Local\Temp\1c2e26e5c896f7aff902694d4253f1a08b4a46a62e3b6290dfa9d87e8b5d2256.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4040

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:3672

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:2012

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3076

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:2624

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4336

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:3368

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4376

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:1524

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4660

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:8

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:3252

C:\Windows\SysWOW64\nslookup.exe
nslookup gandcrab.bit dns1.soprodns.ru
2⤵
PID:4344

C:\Windows\SysWOW64\nslookup.exe
nslookup nomoreransom.bit dns1.soprodns.ru
2⤵
PID:4864

C:\Windows\SysWOW64\nslookup.exe
nslookup emsisoft.bit dns1.soprodns.ru
2⤵
PID:4648

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4040-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-4-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-5-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-6-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-7-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-8-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-9-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-10-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-11-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4040-12-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

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memory/4040-13-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

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memory/4040-14-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

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memory/4040-15-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

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memory/4040-17-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

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