gh0strat | bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb

General

Target
bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe
Size 1.1MB
Sample260529-yhcmdafv8m
SHA256 bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb
MD5 8bb60d58899e4b52576f132ecd0d0cff
SHA1 fb224f616e697c2cee65b078674d794e37dae08d
SHA512 cc471d5174e8e08ed23cf36579fa3216d71105521eae590145c6ec37da6fa4440660dbc88dc67bb4d0154fbc5206424579f7976e4bd5268e534957f91a02e229
SSDEEP 24576:2YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnNyzl:2YREXSVMDi3E
TLSH
T1FD35AE17BE9384B1F64D153089A66B76D6759F400F228A87D398FE2C7D32341963F23A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery gh0strat persistence rat

Malware Config

Signatures

Family: 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

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/files/0x001f00000002b356-5.dat	family_gh0strat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240681250.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
3308	look2.exe
4064	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
3308	look2.exe
3220	svchost.exe
4064	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File created	C:\Windows\SysWOW64\240681250.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4468	bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe
4468	bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 3308	4468	bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe	82
PID 3220 wrote to memory of 4064	3220	svchost.exe	88

C:\Users\Admin\AppData\Local\Temp\bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe
"C:\Users\Admin\AppData\Local\Temp\bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4468
- 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:3308

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4400

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:3220
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240681250.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4064

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:3040

Network

MITRE ATT&CK Enterprise v16

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

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.1MB
SHA256 bfee17c895d41fdc908ffdb579fd425fa0d8ce6e4938877b57d64b1d33bfc2eb
MD5 8bb60d58899e4b52576f132ecd0d0cff
SHA1 fb224f616e697c2cee65b078674d794e37dae08d
SHA512 cc471d5174e8e08ed23cf36579fa3216d71105521eae590145c6ec37da6fa4440660dbc88dc67bb4d0154fbc5206424579f7976e4bd5268e534957f91a02e229
SSDEEP 24576:2YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnNyzl:2YREXSVMDi3E
TLSH
T1FD35AE17BE9384B1F64D153089A66B76D6759F400F228A87D398FE2C7D32341963F23A
MD5 SHA1 SHA512 SSDEEP TLSH

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look2.exe

Path C:\Users\Admin\AppData\Local\Temp\look2.exe
Size 337KB
SHA256 86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857
MD5 2f3b6f16e33e28ad75f3fdaef2567807
SHA1 85e907340faf1edfc9210db85a04abd43d21b741
SHA512 db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4
SSDEEP 6144:8IXwWcHnNmZEvB7csAPRZyfQjCfA3lMXm4Y+5bFnWBFopJOU:8IXwDNmZEvJcscRZzjCI1O5W
TLSH
T1B474BF137FE4C8B6C59351324EE25F7AA1F6FE902E224A4333956F0CDD32691963A316
MD5 SHA1 SHA512 SSDEEP TLSH

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240681250.bat

Path C:\Windows\SysWOW64\240681250.bat
Size 51KB
SHA256 80141bad14227b9e74f3d4f903358bf451d91243e19277d633677252e220dd02
MD5 63aa3e301b203fe756041afa34b96efd
SHA1 f363c176526bc10e0ad3a49170d138589a619804
SHA512 21392c3f4cf7712d75742eb49d71f2036d5184be00ac6cb95edc4abd1b8add00dc2fd6eff22603700307207ad1322c655d3fd588f476b99fd70af1709d5e27df
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLiJYH5:1dWubF3n9S91BF3fboeJYH5
TLSH
T13B334A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
MD5 SHA1 SHA512 SSDEEP TLSH

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svchcst.exe

Path C:\Windows\SysWOW64\svchcst.exe
Size 40KB
SHA256 8dcaeeebef9b9f3d41d295db145ffb3850f309d089c08125c7fa7034db5fd80e
MD5 22bb5bd901d8b25ac5b41edbb7d5053e
SHA1 8a935dd8d7e104fc553ff7e8b54a404f7b079334
SHA512 cc3fb68fd6791a08e4a7d1a8db8d07cfcc8c9b9dceec10b53f0cb7ee86473303a19be4f23e379f84c59e02d0568e7c066e21cd1300f6032dac4ba52f609f62e7
SSDEEP 768:C67uhQpPPp0nnqFk509FRdVcQX6N58hJYim1jLP3RRe:C67uhQpXp0nnqa5093jKNAmB3RR
TLSH
T10C134C02BE88C071DDA114B41A5DB337939DED604B1586D3593887EBAA2D3E39E343DE
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads