gh0strat | 906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561

Analysis

max time kernel
224s
max time network
211s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05-12-2022 21:12

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General

Target

906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
Size

412KB
MD5

402454a85d25641e46965c127abe511f
SHA1

b44b9cbb4ac450e322dd695b3e8c8618c01b8039
SHA256

906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561
SHA512

2aecec0447d1ffbf001f817fb394df3e887541d46ef13f2724b1f71df9f112487577fb387af2afc4f2355b1135396bf8cd07c0fd73daae4e8712a19c0df6f3ab
SSDEEP

6144:7evzV8Yct6Ym5OjI6UOwqdC32bAAzMFB4:7e7V8rzmb6URlizUB4

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/776-59-0x0000000000400000-0x00000000004F5000-memory.dmp	family_gh0strat
behavioral1/memory/1324-60-0x00000000024A0000-0x0000000002595000-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
776	svchest000.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	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "c:\\Windows\\notepab.exe"	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	\??\c:\Windows\svchest000.exe	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
File opened for modification	\??\c:\Windows\svchest000.exe	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
File created	\??\c:\Windows\notepab.exe	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
File created	\??\c:\Windows\BJ.exe	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
File opened for modification	\??\c:\Windows\BJ.exe	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 776	1324	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe	28
PID 1324 wrote to memory of 776	1324	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe	28
PID 1324 wrote to memory of 776	1324	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe	28
PID 1324 wrote to memory of 776	1324	906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe	28

C:\Users\Admin\AppData\Local\Temp\906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe
"C:\Users\Admin\AppData\Local\Temp\906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1324
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  PID:776

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\svchest000.exe

Filesize
412KB

MD5
402454a85d25641e46965c127abe511f

SHA1
b44b9cbb4ac450e322dd695b3e8c8618c01b8039

SHA256
906909d0f81167dc44f2043b045509e058227517c34336fce6b5e9daf309e561

SHA512
2aecec0447d1ffbf001f817fb394df3e887541d46ef13f2724b1f71df9f112487577fb387af2afc4f2355b1135396bf8cd07c0fd73daae4e8712a19c0df6f3ab

Download Submit
memory/776-56-0x0000000000000000-mapping.dmp

Download
memory/776-59-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download
memory/1324-54-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download
memory/1324-55-0x0000000076931000-0x0000000076933000-memory.dmp

Filesize
8KB

Download
memory/1324-60-0x00000000024A0000-0x0000000002595000-memory.dmp

Filesize
980KB

Download