gh0strat | a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f

Analysis

max time kernel
190s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 12:23

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General

Target

a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
Size

891KB
MD5

9599d3451852bda32c36319357d60c45
SHA1

3a4ec04f9a994dc9f386d408339eb5de91e8dadc
SHA256

a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f
SHA512

78c60da37332fcf2cee66e878f1532549e4aae2bcfef15d8a153e987fdeb4f5c667b6f511938c52da78eea709833c887bcda6f1ebf74e796597d93f833412da5
SSDEEP

12288:iM5jZKbBL3aKHx5r+TuxX+fWbwFBfdGmZKbaA:iM5j8Z3aKHx5r+TuxX+IwffFZKbaA

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022658-133.dat	family_gh0strat
behavioral2/files/0x0002000000022658-134.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

Executes dropped EXE 1 IoCs

pid	Process
4652	svchest432048043204801465662051.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "c:\\Windows\\notepab.exe"	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
File created	\??\c:\Windows\svchest432048043204801465662051.exe	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
File opened for modification	\??\c:\Windows\svchest432048043204801465662051.exe	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
File created	\??\c:\Windows\notepab.exe	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
File created	\??\c:\Windows\BJ.exe	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4652	4120	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe	82
PID 4120 wrote to memory of 4652	4120	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe	82
PID 4120 wrote to memory of 4652	4120	a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe	82

C:\Users\Admin\AppData\Local\Temp\a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe
"C:\Users\Admin\AppData\Local\Temp\a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4120
- \??\c:\Windows\svchest432048043204801465662051.exe
  c:\Windows\svchest432048043204801465662051.exe
  2⤵
  - Executes dropped EXE
  PID:4652

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\svchest432048043204801465662051.exe

Filesize
891KB

MD5
9599d3451852bda32c36319357d60c45

SHA1
3a4ec04f9a994dc9f386d408339eb5de91e8dadc

SHA256
a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f

SHA512
78c60da37332fcf2cee66e878f1532549e4aae2bcfef15d8a153e987fdeb4f5c667b6f511938c52da78eea709833c887bcda6f1ebf74e796597d93f833412da5

Download Submit
\??\c:\Windows\svchest432048043204801465662051.exe

Filesize
891KB

MD5
9599d3451852bda32c36319357d60c45

SHA1
3a4ec04f9a994dc9f386d408339eb5de91e8dadc

SHA256
a66a74b5846714d2bb0b7b79708abefc51d43175cab6c264102813ac33f6574f

SHA512
78c60da37332fcf2cee66e878f1532549e4aae2bcfef15d8a153e987fdeb4f5c667b6f511938c52da78eea709833c887bcda6f1ebf74e796597d93f833412da5

Download Submit