gh0strat | 8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b

General

Target
8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
Size 4.8MB
Sample261007-e67b4sssfy
SHA256 8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b
MD5 0c045964c8ff04cd314a136baaf68649
SHA1 bbaddbf013af3312910983ba31dbc47161c013f6
SHA512 f2a1c40d4c001f4f9c223b33e7b09f1da7b58362b97a00e9d96624869b5d60863706bb43615aa0ecc0e0328303b58e0b3ca12e15f73e3514c92d136abd21b348
SSDEEP 49152:XYREXSVMKi3A4bXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PL:I2SVMK8A4bXsPN5kiQaZ56
TLSH
T15F367E2166D4CFE1D06F1070DC66BAF5912BAD20CF654FCBAA807F1BB530592AA3161F
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
behavioral1/files/0x00070000000243dd-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\\240695359.bat"	look2.exe

Executes dropped EXE 3 IoCs

pid	Process
3516	look2.exe
4816	HD_8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
3756	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
3516	look2.exe
4708	svchost.exe
3756	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240695359.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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	svchcst.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	svchcst.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
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	HD_8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3724	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
3724	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3724	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
3724	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 3516	3724	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe	87
PID 3724 wrote to memory of 4816	3724	8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe	90
PID 4708 wrote to memory of 3756	4708	svchost.exe	98

C:\Users\Admin\AppData\Local\Temp\8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
"C:\Users\Admin\AppData\Local\Temp\8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3724
- 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:3516
- C:\Users\Admin\AppData\Local\Temp\HD_8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
  C:\Users\Admin\AppData\Local\Temp\HD_8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4816

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2776

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:4708
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240695359.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:3756

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:4500

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

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

HD_8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_8b94ad8fe11b5413ab623594fdc5555a801ce49e3b414acbf2098fed4f479b0b.exe
Size 3.1MB
SHA256 f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794
MD5 fb083acd60fe5c3156dc25442be815e3
SHA1 61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8
SHA512 7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6
SSDEEP 49152:0bXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLhp:0bXsPN5kiQaZ56
TLSH
T14BE5802126D4CFE1D46F20B0DD66BAF6512BAD24CF564FCB6D803E1A35305D2AA31A1F
MD5 SHA1 SHA512 SSDEEP TLSH

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.7MB
SHA256 c9cff3ee622e1befab324eac76a557d2196e421c79d6adc1a6f015f4258b36b3
MD5 f813aca0e0f375f2f723e061ff557aca
SHA1 923d0ea69d7f14e400c59e5e0acd1e36b7445964
SHA512 ee031e0e95c68174abc2425e96a617ac488b7c82b07e1b231f480397bb7efec43b569fa6092a6291403cd20cf13ef2440a6f43ba292b93b0bc7a779996c944a0
SSDEEP 24576:XYFbkIsaPiXSVnC7Yp9zjNmZG8RRl9OyzHsQGG:XYREXSVMKi3AG
TLSH
T1B3850716B780CFB0C11F1131C89666F6966F9E40CE328BC7E295FF2BF972542952612B
MD5 SHA1 SHA512 SSDEEP TLSH

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look2.exe

Path C:\Users\Admin\AppData\Local\Temp\look2.exe
Size 337KB
SHA256 5ea8c5455f0ebe884ed98834e78ead8b6c68814bbb1723370299fa44b88c0faa
MD5 fb66e1e31fa1e6dfb21a50ccd11e0409
SHA1 6c45a0a115ec896eb14a531a44809b2a22cf8934
SHA512 58ee149f70438296a67d5ae5cbd6cb9f5b2510a0381466b8f09eec3835be1ce7cad6903ca8fbc9273105132e85952208e78c59f776416c5449b86cc62111154b
SSDEEP 6144:8IXwWcHnNmZEvB7csAPRZyfQjCfA3lMXm4Y+5bFnWBFopJO+:8IXwDNmZEvJcscRZzjCI1O5W
TLSH
T1B674BF137FE4C8B6C59351324EE25F7AA1F6FE902E224A4333956F0CDD32691963A316
MD5 SHA1 SHA512 SSDEEP TLSH

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240695359.bat

Path C:\Windows\SysWOW64\240695359.bat
Size 51KB
SHA256 dde1cc1a6697c8dabf340c92db53976f31475435aa9b6d04e19caa103cb18038
MD5 590d9ac3059a8f0d4549290680d0cc44
SHA1 685d3ad417cb079d912bb4d64cabc733a2a8acf2
SHA512 c332a5f898f376a56bba28a82327335912fb538129e0a4a98b5ab8c886c86a72925482152b10361691dc04a44ef70dc07cb92bbdd4c8b62ad6df8a10e7cb4da7
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLMJYH5:1dWubF3n9S91BF3fbogJYH5
TLSH
T136333A02DE8D88F5F145177038AA33B6953ABDE036996A931F53DDA9C87B370F12D242
MD5 SHA1 SHA512 SSDEEP TLSH

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svchcst.exe

Path C:\Windows\SysWOW64\svchcst.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
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