gh0strat | 732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42

Analysis

max time kernel
153s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29/10/2022, 23:49

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General

Target

732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe
Size

370KB
MD5

a374a417822d4f392abd314bde85b630
SHA1

b3f0dcdcd0188de2c90f29acd57b272d7fea7813
SHA256

732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42
SHA512

8d4fab50da0b6597737f69236f05b835293ae9447a33989bc98f62e970030292c93a1ebc64bbbed3153280ae8dba8b99c98a78e10b46aa8ae5372b255683976b
SSDEEP

3072:mxjMQVacnG3icUkYdT45/NEGI/Lc+EINkzT1diLUEuBfYcORtwikwiWAD:mxjlVJnQiGP/evc2gT1Wcx

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4864-135-0x0000000000400000-0x00000000004F0000-memory.dmp	family_gh0strat
behavioral2/memory/3268-136-0x0000000000400000-0x00000000004F0000-memory.dmp	family_gh0strat
behavioral2/memory/3268-137-0x0000000000400000-0x00000000004F0000-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
4864	svchest425075242507520.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0003000000000721-133.dat	upx
behavioral2/files/0x0003000000000721-134.dat	upx
behavioral2/memory/4864-135-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral2/memory/3268-136-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral2/memory/3268-137-0x0000000000400000-0x00000000004F0000-memory.dmp	upx

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	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe"	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe
File created	\??\c:\Windows\BJ.exe	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe
File opened for modification	\??\c:\Windows\BJ.exe	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe
File created	\??\c:\Windows\svchest425075242507520.exe	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 4864	3268	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe	83
PID 3268 wrote to memory of 4864	3268	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe	83
PID 3268 wrote to memory of 4864	3268	732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe	83

C:\Users\Admin\AppData\Local\Temp\732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe
"C:\Users\Admin\AppData\Local\Temp\732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3268
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  PID:4864

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\svchest425075242507520.exe

Filesize
370KB

MD5
a374a417822d4f392abd314bde85b630

SHA1
b3f0dcdcd0188de2c90f29acd57b272d7fea7813

SHA256
732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42

SHA512
8d4fab50da0b6597737f69236f05b835293ae9447a33989bc98f62e970030292c93a1ebc64bbbed3153280ae8dba8b99c98a78e10b46aa8ae5372b255683976b

Download Submit
\??\c:\Windows\svchest425075242507520.exe

Filesize
370KB

MD5
a374a417822d4f392abd314bde85b630

SHA1
b3f0dcdcd0188de2c90f29acd57b272d7fea7813

SHA256
732eae4c7b7ffd607596f0804530c1e617dc6d7f37f3b6ecc722f273e090ef42

SHA512
8d4fab50da0b6597737f69236f05b835293ae9447a33989bc98f62e970030292c93a1ebc64bbbed3153280ae8dba8b99c98a78e10b46aa8ae5372b255683976b

Download Submit
memory/3268-136-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/3268-137-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/4864-135-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download