gh0strat | a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351

General

Target

a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe
Size

1.6MB
MD5

1fd279aa05d82c3a8f17490339c2f7d1
SHA1

7e815ee3d2e377d4df694b7979002b469d260cc5
SHA256

a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351
SHA512

2e913e089a24c148e88435ec98f52fa3706dffef92fb47390dfd9c5bf9491a98460dae2293318f16eafa7b79ee4293f9a1f44677db8e9a4b7ad418d6989c8a31
SSDEEP

24576:8YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnMyz32:8YREXSVMDi3C

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240596828.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\\240596828.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

2192 look2.exe
432 svchcst.exe
Loads dropped DLL 3 IoCs

Processes:

look2.exesvchost.exesvchcst.exe

pid process

2192 look2.exe
960 svchost.exe
432 svchcst.exe

pid	process
2192	look2.exe
432	svchcst.exe

pid	process
2192	look2.exe
960	svchost.exe
432	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

svchost.exelook2.exe

description	ioc	process
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\240596828.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe

Drops file in Program Files directory 1 IoCs

Processes:

a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.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:

a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe

pid	process
1804	a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe
1804	a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exesvchost.exe

description	pid	process	target process
PID 1804 wrote to memory of 2192	1804	a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe	look2.exe
PID 1804 wrote to memory of 2192	1804	a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe	look2.exe
PID 1804 wrote to memory of 2192	1804	a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe	look2.exe
PID 960 wrote to memory of 432	960	svchost.exe	svchcst.exe
PID 960 wrote to memory of 432	960	svchost.exe	svchcst.exe
PID 960 wrote to memory of 432	960	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe
"C:\Users\Admin\AppData\Local\Temp\a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1804
- 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:2192

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:1244

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:960
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240596828.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:432

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:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
1.6MB

MD5
1fd279aa05d82c3a8f17490339c2f7d1

SHA1
7e815ee3d2e377d4df694b7979002b469d260cc5

SHA256
a2c1df0f447c5adbd2e88e750a9b24cc558b387604e8f68ec7f16635bb374351

SHA512
2e913e089a24c148e88435ec98f52fa3706dffef92fb47390dfd9c5bf9491a98460dae2293318f16eafa7b79ee4293f9a1f44677db8e9a4b7ad418d6989c8a31

Download Submit
C:\Users\Admin\AppData\Local\Temp\look2.exe

Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
C:\Windows\SysWOW64\240596828.bat

Filesize
51KB

MD5
0047dcac5481b9c0b8e0e5dee227bf8a

SHA1
edc42b03a7427b1eb967c650604301a8db679905

SHA256
c1af4af772070936755b9a9200ec545a6fcf603ac7e12c15fac8cfea25af3a61

SHA512
0216ee0a8780403e1d429ca95201086d802c224abffc04e699dcd95b0af37311c0b4f7f404ff34229ea5cf056892b97e7b5448abc78e808dc197531bc3a6b526

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