gh0strat | f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
26-05-2024 07:27

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General

Target

f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe
Size

1.2MB
MD5

aa045b595e5620a9fce61bf57a898692
SHA1

cb3b9dffaa98bc46181ed66c8e0698e6065c0f0d
SHA256

f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a
SHA512

ad2999c5544f72f7956bf95d439632b2930e4cf5f1ecaec2dde387439afbeef7397ce132c48fdfd10c81356ac20dede10b9a7ee16c6747d01174b370e2e24d05
SSDEEP

24576:5YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnhyzlvn:5YREXSVMDi3an

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240594609.bat	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

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

look2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240594609.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

4056 look2.exe
1768 svchcst.exe
Loads dropped DLL 3 IoCs

Processes:

look2.exesvchost.exesvchcst.exe

pid process

4056 look2.exe
3284 svchost.exe
1768 svchcst.exe

pid	process
4056	look2.exe
1768	svchcst.exe

pid	process
4056	look2.exe
3284	svchost.exe
1768	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\240594609.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\svchcst.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe

pid	process
4320	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe
4320	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exesvchost.exe

description	pid	process	target process
PID 4320 wrote to memory of 4056	4320	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 4320 wrote to memory of 4056	4320	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 4320 wrote to memory of 4056	4320	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 3284 wrote to memory of 1768	3284	svchost.exe	svchcst.exe
PID 3284 wrote to memory of 1768	3284	svchost.exe	svchcst.exe
PID 3284 wrote to memory of 1768	3284	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe
"C:\Users\Admin\AppData\Local\Temp\f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4320

C:\Users\Admin\AppData\Local\Temp\look2.exe
C:\Users\Admin\AppData\Local\Temp\\look2.exe
2⤵
- Sets DLL path for service in the registry
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
PID:4056

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:400

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3284

C:\Windows\SysWOW64\svchcst.exe
C:\Windows\system32\svchcst.exe "c:\windows\system32\240594609.bat",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1768

Network

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\look2.exe
Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
C:\Windows\SysWOW64\240594609.bat
Filesize
51KB

MD5
96e42fd7d2396255853da13de0357a4f

SHA1
35ee70e4288b9bce2531f642a240784f28d184ad

SHA256
aef56d8feae4446858fe03e7628ac6a1fe423762b2551d19ced150329d94929a

SHA512
5c868d524296611ec9d974195cad4c5aa17102c51bfee38b7ec14d9897d9e2b4d35e0aa2aba3ee0dde20f43916c37dc45af2f04b8d0bb661f921f3ad15933f9c

Download Submit
C:\Windows\SysWOW64\svchcst.exe
Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit