gh0strat | b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617

Analysis

max time kernel
31s
max time network
143s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
18/05/2023, 19:39

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General

Target

b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe
Size

40KB
MD5

eea0784afeecf884280c0c208683e65d
SHA1

4be1e689860b9c50b35ab87b460a8c94777b5dba
SHA256

b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617
SHA512

5853720dcc91d36b6219dc55e04ec0dd661c220e4dc01775ad14018868476070ac1540f4c2cd38bdf8c867dce27e042d298c81dd100b85305ea7ea26c260a56c
SSDEEP

384:ocgagdnKcmS9kmnJd58OC7Rn9o34qsf861rYpY71yhc:ocgagdK6km3SOCdA8rn71yh

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1808-54-0x0000000001D80000-0x0000000001DCE000-memory.dmp	family_gh0strat
behavioral1/memory/1808-55-0x0000000010000000-0x0000000010008000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ÏµÍ³Éý¼¶Ö§³Ö = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe"	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe

Checks processor information in registry 2 TTPs 2 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	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Control Panel\Desktop\AutoEndTasks	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1808	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1808	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe
1808	b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe

C:\Users\Admin\AppData\Local\Temp\b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe
"C:\Users\Admin\AppData\Local\Temp\b8a55b2c2f9f29e9c81643e6826e8a565b24ec9e529a428e51324ff5370ba617.exe"
1⤵
- Adds Run key to start application
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1808-54-0x0000000001D80000-0x0000000001DCE000-memory.dmp

Filesize
312KB

Download
memory/1808-55-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download