gh0strat | 5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541

General

Target
5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe
Size 1.1MB
Sample240510-ajw6eaaf39
SHA256 5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541
MD5 5b02a67e11bbda6fcbe742e02fdb6187
SHA1 f3f9f6ff64324c8f359d64d6eaf338bb83107a43
SHA512 2a436706f0dc65f6a376e70f89a5e077e568b5810acae2f27b67b9fcd3d216e7a6eac35eabe2d34242385d14dd815297943b215e9331480a348f7c1722e757e2
SSDEEP 24576:zYFbkIsaPiXSVnC7Yp9zkNmZG8RRln1yzH:zYREXSVMDi3W
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0031000000015cf5-6.dat	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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\259399039.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
2420	look2.exe
2628	svchcst.exe

Loads dropped DLL 5 IoCs

pid	Process
2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe
2420	look2.exe
2760	svchost.exe
2760	svchost.exe
2628	svchcst.exe

Drops file in System32 directory 4 IoCs

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\259399039.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.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

pid	Process
2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe
2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2420	2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe	28
PID 2204 wrote to memory of 2420	2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe	28
PID 2204 wrote to memory of 2420	2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe	28
PID 2204 wrote to memory of 2420	2204	5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe	28
PID 2760 wrote to memory of 2628	2760	svchost.exe	31
PID 2760 wrote to memory of 2628	2760	svchost.exe	31
PID 2760 wrote to memory of 2628	2760	svchost.exe	31
PID 2760 wrote to memory of 2628	2760	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe
"C:\Users\Admin\AppData\Local\Temp\5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204
- 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:2420

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2032

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:2760
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\259399039.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2628

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

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.1MB
SHA256 5bf7d39debcc362de61bfd9926dd89672396583131b3eefb460ae12d252b2541
MD5 5b02a67e11bbda6fcbe742e02fdb6187
SHA1 f3f9f6ff64324c8f359d64d6eaf338bb83107a43
SHA512 2a436706f0dc65f6a376e70f89a5e077e568b5810acae2f27b67b9fcd3d216e7a6eac35eabe2d34242385d14dd815297943b215e9331480a348f7c1722e757e2
SSDEEP 24576:zYFbkIsaPiXSVnC7Yp9zkNmZG8RRln1yzH:zYREXSVMDi3W
MD5 SHA1 SHA512 SSDEEP

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svchcst.exe

Path C:\Windows\SysWOW64\svchcst.exe
Size 43KB
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
SSDEEP 768:mD+ellQvZSazSRqbSEln5IyYpamDjobj8SpM:E+QWvZhSRqln5IUmDjoXV
MD5 SHA1 SHA512 SSDEEP

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look2.exe

Path \Users\Admin\AppData\Local\Temp\look2.exe
Size 337KB
SHA256 86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857
MD5 2f3b6f16e33e28ad75f3fdaef2567807
SHA1 85e907340faf1edfc9210db85a04abd43d21b741
SHA512 db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4
SSDEEP 6144:8IXwWcHnNmZEvB7csAPRZyfQjCfA3lMXm4Y+5bFnWBFopJOU:8IXwDNmZEvJcscRZzjCI1O5W
MD5 SHA1 SHA512 SSDEEP

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259399039.bat

Path \Windows\SysWOW64\259399039.bat
Size 51KB
SHA256 7997fcc5050abf42d3b6b2c5e5a6b5aa292a68d3946c2a5d4465e4d47c6a6aa3
MD5 4c08c00399c734151d58e3ff1891344e
SHA1 fb337ab0046e9abe17a33ba4ea0fc2270dbc9fe9
SHA512 20aab1ab0bfc48c083a0f6e09123dc09434f36cca2147971847d959fd4f7f566e37e3ee9ed7e0df75b8ed47a3bc553a88496d38ee530ca86ccf2d43abc5f35ca
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLmJYH5:1dWubF3n9S91BF3fboaJYH5
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads