gh0strat | 4ee20558b9da83776f563619de8002838d49b21412f40ff74391292c411a83a9

Analysis

max time kernel
150s
max time network
138s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 14:34

Target

CERTIFICATE.dll
Size

101KB
MD5

fcfa69cbc689304e055d5705ed7692a1
SHA1

983815092026b81b125e85e02c6e019ef6349ecc
SHA256

4ee20558b9da83776f563619de8002838d49b21412f40ff74391292c411a83a9
SHA512

51c0b2eb5bc1da32b3aa0b310df6d4f08e6a3e8b3f195ead6a9dc3011042a0c92f05c5163e99084488228ed05ca4f62f51b658f591269a42682be1c6ad6af33e
SSDEEP

3072:rwZ2QNI3VGVilUVjz764/9xjEEUQqbZuwI5RG:VVGg2x9tjUpZuwIrG

Score

10^/10

gh0strat rat

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
\??\c:\windows\filename.jpg	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
Drops file in Windows directory 2 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\FileName.jpg rundll32.exe
File created C:\Windows\FileName.jpg rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\FileName.jpg	rundll32.exe
File created	C:\Windows\FileName.jpg	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2016	2320	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CERTIFICATE.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k imgsvc
1⤵
- Suspicious behavior: EnumeratesProcesses
PID:2088

\??\c:\windows\filename.jpg
Filesize
7.5MB

MD5
835b59fb5d2a54ee8d4a749f0448eae2

SHA1
346147155bfc5ed298f0410bf909b0f23e1d10ce

SHA256
4911e3cdcec039a95ab8d13f9b89013ac7fc04f36ed5d4e94761c797e4112681

SHA512
99ea4fbd201a1f22f63c1b2325e28ef72c775ab38166b459baf829d133ddecd4f8fdf435c07fe03441b25cd95a3bc0ca09dc72ca6775ff84c718b985c5d83c75

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