gh0strat | f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a

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
\Windows\SysWOW64\259399195.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\\259399195.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

2768 look2.exe
2292 svchcst.exe
Loads dropped DLL 5 IoCs

Processes:

f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exelook2.exesvchost.exesvchcst.exe

pid process

2856 f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe
2768 look2.exe
2332 svchost.exe
2332 svchost.exe
2292 svchcst.exe

pid	process
2768	look2.exe
2292	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
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
File created	C:\Windows\SysWOW64\259399195.bat	look2.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
2856	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe
2856	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exesvchost.exe

description	pid	process	target process
PID 2856 wrote to memory of 2768	2856	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 2856 wrote to memory of 2768	2856	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 2856 wrote to memory of 2768	2856	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 2856 wrote to memory of 2768	2856	f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe	look2.exe
PID 2332 wrote to memory of 2292	2332	svchost.exe	svchcst.exe
PID 2332 wrote to memory of 2292	2332	svchost.exe	svchcst.exe
PID 2332 wrote to memory of 2292	2332	svchost.exe	svchcst.exe
PID 2332 wrote to memory of 2292	2332	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe
"C:\Users\Admin\AppData\Local\Temp\f90ae4f272ff66ecad6fc3b368095aa946153c25da7192bc9f7aa9e72dc3232a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2856

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:2768

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:1984

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:2332

C:\Windows\SysWOW64\svchcst.exe
C:\Windows\system32\svchcst.exe "c:\windows\system32\259399195.bat",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\svchcst.exe
Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\look2.exe
Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
\Windows\SysWOW64\259399195.bat
Filesize
51KB

MD5
96e42fd7d2396255853da13de0357a4f

SHA1
35ee70e4288b9bce2531f642a240784f28d184ad

SHA256
aef56d8feae4446858fe03e7628ac6a1fe423762b2551d19ced150329d94929a

SHA512
5c868d524296611ec9d974195cad4c5aa17102c51bfee38b7ec14d9897d9e2b4d35e0aa2aba3ee0dde20f43916c37dc45af2f04b8d0bb661f921f3ad15933f9c

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads