gh0strat | 48de6adcb1e991d01fde17b73ec8e5441644e08065ff224bbd53dfbdf51d19d5

Analysis

max time kernel
36s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 18:32

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General

Target

34c2d37434cb06c2874a49419d59ab45.exe
Size

228KB
MD5

34c2d37434cb06c2874a49419d59ab45
SHA1

262fdec6d7ce86ddf2fbf35ec0fa466522bd9428
SHA256

48de6adcb1e991d01fde17b73ec8e5441644e08065ff224bbd53dfbdf51d19d5
SHA512

ab355b7eebbe651ad4681a89d8e46b0ec02eb1940a7110323a04a091dd439b3b888c86f7a88ecbc0ff8581e4340b54b670b318eec5d748bd8d89c923bc7df516
SSDEEP

6144:93ouBn5oP8qxFrthTZW2665Qu46uYF4gK4:7Bn5oP8qxFrXv665Qu46uYe

Score

10^/10

gh0strat bootkit persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/3028-18-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/3064-35-0x0000000000400000-0x0000000000438484-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

Deletes itself 1 IoCs

pid	Process
2592	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	appapp.exe

Loads dropped DLL 6 IoCs

pid	Process
3064	34c2d37434cb06c2874a49419d59ab45.exe
3064	34c2d37434cb06c2874a49419d59ab45.exe
3028	appapp.exe
3028	appapp.exe
3028	appapp.exe
3028	appapp.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	appapp.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\SysWOW64\brilgrwjgksojrwmspk.vbs	34c2d37434cb06c2874a49419d59ab45.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2564	sc.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	appapp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	appapp.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3064	34c2d37434cb06c2874a49419d59ab45.exe
3064	34c2d37434cb06c2874a49419d59ab45.exe
3064	34c2d37434cb06c2874a49419d59ab45.exe
3028	appapp.exe
3028	appapp.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 3028	3064	34c2d37434cb06c2874a49419d59ab45.exe	29
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2708	3064	34c2d37434cb06c2874a49419d59ab45.exe	43
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2556	3064	34c2d37434cb06c2874a49419d59ab45.exe	41
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2564	3064	34c2d37434cb06c2874a49419d59ab45.exe	40
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 3064 wrote to memory of 2592	3064	34c2d37434cb06c2874a49419d59ab45.exe	38
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2780	2556	cmd.exe	36
PID 2556 wrote to memory of 2868	2556	cmd.exe	31
PID 2556 wrote to memory of 2868	2556	cmd.exe	31
PID 2556 wrote to memory of 2868	2556	cmd.exe	31
PID 2556 wrote to memory of 2868	2556	cmd.exe	31
PID 2556 wrote to memory of 2868	2556	cmd.exe	31
PID 2556 wrote to memory of 2868	2556	cmd.exe	31
PID 2556 wrote to memory of 2868	2556	cmd.exe	31

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2900	attrib.exe
2632	attrib.exe

C:\Users\Admin\AppData\Local\Temp\34c2d37434cb06c2874a49419d59ab45.exe
"C:\Users\Admin\AppData\Local\Temp\34c2d37434cb06c2874a49419d59ab45.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Sofe0\appapp.exe
  C:\Sofe0\appapp.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3028
- C:\Windows\SysWOW64\cmd.exe
  cmd /c afc9fe2f418b00a0.bat
  2⤵
  - Deletes itself
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  sc config DcomLaunch start= auto
  2⤵
  - Launches sc.exe
  PID:2564
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Sofe0\common\lanmao.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2556
- C:\Windows\SysWOW64\cscript.exe
  cscript.exe "C:\WINDOWS\system32\brilgrwjgksojrwmspk.vbs"
  2⤵
  PID:2708

C:\Windows\SysWOW64\cacls.exe
cacls "C:\Users\Admin\AppData\Local\Temp" /T /P everyone:F
1⤵
PID:2868

C:\Windows\SysWOW64\attrib.exe
attrib +H +R "C:\Sofe0"
1⤵
- Views/modifies file attributes
PID:2900

C:\Windows\SysWOW64\cacls.exe
cacls "C:\Users\Admin\AppData\Local\Temp\84018c44d2a03266a0e95d07765bde86.dat" /T /P everyone:N
1⤵
PID:1224

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo y"
1⤵
PID:2436

C:\Windows\SysWOW64\attrib.exe
attrib +H +R "C:\Users\Admin\AppData\Local\Temp\84018c44d2a03266a0e95d07765bde86.dat"
1⤵
- Views/modifies file attributes
PID:2632

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo y"
1⤵
PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Pre-OS Boot

T1542

Bootkit

T1542.003

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/3028-18-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/3064-2-0x0000000000230000-0x0000000000269000-memory.dmp

Filesize
228KB

Download
memory/3064-1-0x0000000000230000-0x0000000000269000-memory.dmp

Filesize
228KB

Download
memory/3064-0-0x0000000000400000-0x0000000000438484-memory.dmp

Filesize
225KB

Download
memory/3064-35-0x0000000000400000-0x0000000000438484-memory.dmp

Filesize
225KB

Download