gh0strat | 00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3

General

Target
00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.exe
Size 1.2MB
Sample260702-ls2m2afw41
SHA256 00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3
MD5 4defe39cc145137c70a9af1489a42d98
SHA1 3350ff9105464f2c5d156e9234ebb3d17721b654
SHA512 400ed54d2f65c67970d123664ca800ea1114dd0b5d59ad2066bc215d7634c9722572f1de6c9e5c0116452198f70d2b12dd34495edbee950a7dbd1ca43a12655d
SSDEEP 24576:MYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnNyzuE4:MYREXSVMDi3d
TLSH
T11655BF97FFC284B2C583183188766F7699759F850E95CA8BA3D4FE2C6C32241953B237
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/0x000e00000001c52d-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\\240693359.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
3868	look2.exe
4656	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
3868	look2.exe
5336	svchost.exe
4656	svchcst.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File created	C:\Windows\SysWOW64\240693359.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\Acrobat Reader DC\Reader\AcroRd32.exe	00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.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	00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.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	svchcst.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5764	00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.exe
5764	00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5764 wrote to memory of 3868	5764	00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.exe	88
PID 5336 wrote to memory of 4656	5336	svchost.exe	93

C:\Users\Admin\AppData\Local\Temp\00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.exe
"C:\Users\Admin\AppData\Local\Temp\00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5764
- 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:3868

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:5508

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:5336
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240693359.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4656

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:3656

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 1.2MB
SHA256 00a3eb81553cd090a1f0dfb85a4ddc83325640263659c166cc408ce1140164a3
MD5 4defe39cc145137c70a9af1489a42d98
SHA1 3350ff9105464f2c5d156e9234ebb3d17721b654
SHA512 400ed54d2f65c67970d123664ca800ea1114dd0b5d59ad2066bc215d7634c9722572f1de6c9e5c0116452198f70d2b12dd34495edbee950a7dbd1ca43a12655d
SSDEEP 24576:MYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnNyzuE4:MYREXSVMDi3d
TLSH
T11655BF97FFC284B2C583183188766F7699759F850E95CA8BA3D4FE2C6C32241953B237
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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240693359.bat

Path C:\Windows\SysWOW64\240693359.bat
Size 51KB
SHA256 dafeadfb319a8be4282f044e539fe107c520992b46020e734a36a1f74e0f52ce
MD5 5055429dcea00436806af5ca57df7ab6
SHA1 642991f6ce7efb8fa71843a0a2a78f20bce171f8
SHA512 1078a916a1dbace5c44323f46f213c33bda14bb553fa303ea96ab4c788074eaf8e47b8abb78f2333af7e506544f9a79c40667fc6bfe06e419f894bbbe88afdd5
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLQJYH5:1dWubF3n9S91BF3fbocJYH5
TLSH
T1CE333A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
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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