gh0strat | 4ee20558b9da83776f563619de8002838d49b21412f40ff74391292c411a83a9

Analysis

max time kernel
150s
max time network
135s
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 2376 wrote to memory of 764	2376	rundll32.exe	rundll32.exe
PID 2376 wrote to memory of 764	2376	rundll32.exe	rundll32.exe
PID 2376 wrote to memory of 764	2376	rundll32.exe	rundll32.exe
PID 2376 wrote to memory of 764	2376	rundll32.exe	rundll32.exe
PID 2376 wrote to memory of 764	2376	rundll32.exe	rundll32.exe
PID 2376 wrote to memory of 764	2376	rundll32.exe	rundll32.exe
PID 2376 wrote to memory of 764	2376	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:2376

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k imgsvc
1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1116

\??\c:\windows\filename.jpg
Filesize
6.6MB

MD5
e9836f7f12ca4cca972f7b63c386cac8

SHA1
f55d7282820b48db990c269401a3aa95d015c5dd

SHA256
d45b4106909fa9b1e21f9a01677a5c07fd06868dee5e96f349a9c88b01096f0c

SHA512
5a55a207b8e7680ad9f92b3207c846582fbd4d92613fce47130b3e710d51d93886d4d98704114af661bdf32d1d97734fad9ab8b798ed11653d5a0a14f6502109

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