gh0strat | fb92a7cbc9f0f44d92d45c88c0f2f24ff3774959132e90de311bd801a67beee1

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 01:50

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General

Target

0aac04da7f27f17eae0bf0d45eab37eb.exe
Size

159KB
MD5

0aac04da7f27f17eae0bf0d45eab37eb
SHA1

daa2d3536f8bcea601e8be584278a7d91a4f08d2
SHA256

fb92a7cbc9f0f44d92d45c88c0f2f24ff3774959132e90de311bd801a67beee1
SHA512

c4f89fb799516ae16e7b06170f0fdb87a3c86117434c0ee097b8c285582db8100d2ed47c2338bb8b4afd6ad98c76e5220e4d55980fae6c961a077309b59c04e3
SSDEEP

3072:JxjMQVacnG3icUkYdT45/NEGI/Lc+EINkzT1diLUEuh:JxjlVJnQiGP/evc2gT1h

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1716-9-0x0000000000400000-0x00000000004F0000-memory.dmp	family_gh0strat
behavioral1/memory/2932-11-0x0000000000400000-0x00000000004F0000-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

Executes dropped EXE 1 IoCs

pid	Process
1716	svchest000.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2932-0-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/1716-9-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2932-11-0x0000000000400000-0x00000000004F0000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0aac04da7f27f17eae0bf0d45eab37eb.exe"	0aac04da7f27f17eae0bf0d45eab37eb.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	0aac04da7f27f17eae0bf0d45eab37eb.exe
File opened for modification	\??\c:\Windows\BJ.exe	0aac04da7f27f17eae0bf0d45eab37eb.exe
File created	\??\c:\Windows\svchest000.exe	0aac04da7f27f17eae0bf0d45eab37eb.exe
File opened for modification	\??\c:\Windows\svchest000.exe	0aac04da7f27f17eae0bf0d45eab37eb.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	0aac04da7f27f17eae0bf0d45eab37eb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	0aac04da7f27f17eae0bf0d45eab37eb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 1716	2932	0aac04da7f27f17eae0bf0d45eab37eb.exe	14
PID 2932 wrote to memory of 1716	2932	0aac04da7f27f17eae0bf0d45eab37eb.exe	14
PID 2932 wrote to memory of 1716	2932	0aac04da7f27f17eae0bf0d45eab37eb.exe	14
PID 2932 wrote to memory of 1716	2932	0aac04da7f27f17eae0bf0d45eab37eb.exe	14

\??\c:\Windows\svchest000.exe
c:\Windows\svchest000.exe
1⤵
- Executes dropped EXE
PID:1716

C:\Users\Admin\AppData\Local\Temp\0aac04da7f27f17eae0bf0d45eab37eb.exe
"C:\Users\Admin\AppData\Local\Temp\0aac04da7f27f17eae0bf0d45eab37eb.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1716-9-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2932-0-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2932-10-0x0000000002690000-0x0000000002780000-memory.dmp

Filesize
960KB

Download
memory/2932-11-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads