gh0strat | c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860

General

Target

c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe
Size

1.4MB
MD5

5f98b947333f18509cb1f51b3a92af6e
SHA1

47bb87c67a8c3ff2298afe5d791259f7273056bd
SHA256

c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860
SHA512

995733d2fb57d1d4b5e834f972aea17ba0575419561c19db256675b5a1526569961c1767d2536bb7bc65d70c2507af480d4e483267898c283b3be12eebb7df38
SSDEEP

24576:rYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnyyzwdsTDP6LBmxr:rYREXSVMDi36dWDPmBmxr

Score

10^/10

gh0strat discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240622828.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
Gh0strat family
gh0strat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

Processes:

look2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240622828.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

5112 look2.exe
1704 svchcst.exe
Loads dropped DLL 3 IoCs

Processes:

look2.exesvchost.exesvchcst.exe

pid process

5112 look2.exe
2188 svchost.exe
1704 svchcst.exe

pid	process
5112	look2.exe
1704	svchcst.exe

pid	process
5112	look2.exe
2188	svchost.exe
1704	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\240622828.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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

svchcst.exec4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exelook2.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe

pid	process
4328	c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe
4328	c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exesvchost.exe

description	pid	process	target process
PID 4328 wrote to memory of 5112	4328	c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe	look2.exe
PID 4328 wrote to memory of 5112	4328	c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe	look2.exe
PID 4328 wrote to memory of 5112	4328	c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe	look2.exe
PID 2188 wrote to memory of 1704	2188	svchost.exe	svchcst.exe
PID 2188 wrote to memory of 1704	2188	svchost.exe	svchcst.exe
PID 2188 wrote to memory of 1704	2188	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe
"C:\Users\Admin\AppData\Local\Temp\c4b8a8fb9126dadad42f3a01266e50e89d0d32b80a8dbd60f78b793f335e0860.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Users\Admin\AppData\Local\Temp\look2.exe
  C:\Users\Admin\AppData\Local\Temp\\look2.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:5112

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2040

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240622828.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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\240622828.bat

Filesize
51KB

MD5
f30576aadf33b45104f7c4f08404b232

SHA1
e656019f6197fd8ae394a353eab67f52edcf8b95

SHA256
f4816f994da41d543e3cb70bb9b3958628a2503c69613895aab7ed59d3559edb

SHA512
404514c1cce34c1718efda7fb97ae982cc66a4c045a88636f55f0a5d655540bef7221558e12413546d14a1ed736136f2e2eb32e5f7b8113265590f13ee58ff22

Download Submit
C:\Windows\SysWOW64\svchcst.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads