gh0strat | 2d073ca86541cb66f339a2966d4ad3216b2fb21cb6018889dabfcf5d8a982e4c

Analysis

max time kernel
150s
max time network
98s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
02/03/2023, 16:17

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
6318b135503e50e64dd9730a89dcb672.exe
Size 174KB
Sample230302-trclhsdf66
SHA256 2d073ca86541cb66f339a2966d4ad3216b2fb21cb6018889dabfcf5d8a982e4c
MD5 6318b135503e50e64dd9730a89dcb672
SHA1 c87c028db2ab6b24832a890ab665c822fcf38ace
SHA512 0ec958c3197ae608d0a672715833e0d5b176c33a17315cbf7f30e1cf11b863f05eff929740e64587d574a6dffc9b9c4b5b2497ca392a31e452a646d6ee8738ff
SSDEEP 3072:VJuGnYhTbK80khbOW1oWOQ1f9xHwm1PXBmXZFeA28pMGEdePl9dehiv80P80CnpZ:VJueTk1OwoWOQ3dwaWB28adeP/deUv8M
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x001400000000b524-57.dat	family_gh0strat
behavioral1/files/0x001400000000b524-58.dat	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

Modifies Installed Components in the registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{388B1880-13A8-452a-8AB0-FC99CB8236DC}	userinit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{388B1880-13A8-452a-8AB0-FC99CB8236DC}\ = "ÏµÍ³ÉèÖÃ"	userinit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{388B1880-13A8-452a-8AB0-FC99CB8236DC}\stubpath = "þÿÿÿX"	userinit.exe

Loads dropped DLL 1 IoCs

pid	Process
1744	userinit.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	userinit.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	userinit.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1348	6318b135503e50e64dd9730a89dcb672.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1348	6318b135503e50e64dd9730a89dcb672.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28
PID 1348 wrote to memory of 1744	1348	6318b135503e50e64dd9730a89dcb672.exe	28

C:\Users\Admin\AppData\Local\Temp\6318b135503e50e64dd9730a89dcb672.exe
"C:\Users\Admin\AppData\Local\Temp\6318b135503e50e64dd9730a89dcb672.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1348
- C:\Windows\SysWOW64\userinit.exe
  userinit.exe
  2⤵
  - Modifies Installed Components in the registry
  - Loads dropped DLL
  - Checks processor information in registry
  PID:1744

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

Loading Replay Monitor...

Downloads

7080854_lang.dll

Path C:\Users\Admin\AppData\Local\Temp\7080854_lang.dll
Size 122KB
SHA256 513376bd0c0db8312690c2b9a5d6cf25c11e243c6f654c6e8eb4239e285e7944
MD5 4d4c2a8b292925c56ef115bdee917783
SHA1 980fc11d51eeb1c3e6fbbbfc4fc78c329f948cfc
SHA512 00b1e7725298b60b3c10508d6976acf25fe864d47c242f3ec7ae3db19c9b0ea386db04870a3481559814e5194c7f2b415903e3fd4bb9556d23513d17f002561f
SSDEEP 3072:of9xHwm1PXBmXZFeA28pMGEdePl9dehiv80P80Cnp8d6Y:wdwaWB28adeP/deUv80P80Ap8j
MD5 SHA1 SHA512 SSDEEP

Submit Download

7080854_lang.dll

Path \Users\Admin\AppData\Local\Temp\7080854_lang.dll
Size 122KB
SHA256 513376bd0c0db8312690c2b9a5d6cf25c11e243c6f654c6e8eb4239e285e7944
MD5 4d4c2a8b292925c56ef115bdee917783
SHA1 980fc11d51eeb1c3e6fbbbfc4fc78c329f948cfc
SHA512 00b1e7725298b60b3c10508d6976acf25fe864d47c242f3ec7ae3db19c9b0ea386db04870a3481559814e5194c7f2b415903e3fd4bb9556d23513d17f002561f
SSDEEP 3072:of9xHwm1PXBmXZFeA28pMGEdePl9dehiv80P80Cnp8d6Y:wdwaWB28adeP/deUv80P80Ap8j
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1744-56-0x0000000000090000-0x0000000000091000-memory.dmp

Download