gh0strat | 03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e

General

Target
03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.exe
Size 1.4MB
Sample260805-zaangs1tgx
SHA256 03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e
MD5 22a22c081ff3cc784f37b04fbbed20f7
SHA1 634298ee416310056478d0f0d68eb923162713ae
SHA512 9e684b479a2e7cc80d079fc84dc40500b80f7244b44ed2bfc2480fa35266494655116071b5978b84f9d17f82dd813289f6f895a03d0de09a5b28e8a39e36f4ac
SSDEEP 24576:KYFbkIsaPiXSVnC7Yp9zkNmZG8RRln/yzHaNp:KYREXSVMDi3Ff
TLSH
T169657C16BA82CFB1C54F1430C8A697F5967BAF41CE118BC7A398FE2D7C721819636127
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/0x002300000001c2ca-6.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\\240732140.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
4140	look2.exe
5164	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
4140	look2.exe
5796	svchost.exe
5164	svchcst.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240732140.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.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

pid	Process
5268	03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.exe
5268	03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5268 wrote to memory of 4140	5268	03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.exe	88
PID 5796 wrote to memory of 5164	5796	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.exe
"C:\Users\Admin\AppData\Local\Temp\03c8eb9e427a3632f69458428208d56dba292d194e53f771578ba6093f4af44e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5268
- 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:4140

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4212

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:5796
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240732140.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:5164

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:5128

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

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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240732140.bat

Path C:\Windows\SysWOW64\240732140.bat
Size 51KB
SHA256 69169cc9f55c439e413654e9835daecf51018b04f7107a10bd401a41d7d1d65d
MD5 146a040f363714e30bb4ac366720c996
SHA1 b438bbe8cea47296bb2c3d591af70acfe1d7ebeb
SHA512 98e47efe1923b1f4a79d4ca87375d74ab8158f861dc7d28f3e19ecc65069a7ab63c766c8306564eac4e339d4c1044b430ee4d303753a75ec5debdf69a9d936b0
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLjJYH5:1dWubF3n9S91BF3fboHJYH5
TLSH
T1AA333A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
MD5 SHA1 SHA512 SSDEEP TLSH

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svchcst.exe

Path C:\Windows\SysWOW64\svchcst.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
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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