gh0strat | 82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf

General

Target
82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.exe
Size 1.3MB
Sample260926-prtskstzez
SHA256 82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf
MD5 06d59cd812b4710b868060192be01cef
SHA1 d5386d97408d24dc46974079352f558dd81f8199
SHA512 6afb49aa35546596587485d66816065e9536139bcebb266d58b8bd795b99a3c5e2da69a9459e46adf4b5db8e3c6cf0279b82fe38f8039dcbb5df57584c39037f
SSDEEP 24576:QYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnWyz0U:QYREXSVMDi3qU
TLSH
T19055AED3BE92B4F1C5451831B8A76B7EDA779F400F118A87539BFE3C6832141963A236
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/0x0008000000024328-5.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\\240676312.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
684	look2.exe
1680	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
684	look2.exe
4172	svchost.exe
1680	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\240676312.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	82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.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\Hostname	svchcst.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	svchcst.exe

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	82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.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
724	82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.exe
724	82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 724 wrote to memory of 684	724	82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.exe	88
PID 4172 wrote to memory of 1680	4172	svchost.exe	101

C:\Users\Admin\AppData\Local\Temp\82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.exe
"C:\Users\Admin\AppData\Local\Temp\82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:724
- 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:684

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4732

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:4172
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240676312.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:1680

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:4168

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_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.3MB
SHA256 82b0a4a21a5f2fbc2407f1e657d9de6a300c2235a160b815eaec9ea65d2b9caf
MD5 06d59cd812b4710b868060192be01cef
SHA1 d5386d97408d24dc46974079352f558dd81f8199
SHA512 6afb49aa35546596587485d66816065e9536139bcebb266d58b8bd795b99a3c5e2da69a9459e46adf4b5db8e3c6cf0279b82fe38f8039dcbb5df57584c39037f
SSDEEP 24576:QYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnWyz0U:QYREXSVMDi3qU
TLSH
T19055AED3BE92B4F1C5451831B8A76B7EDA779F400F118A87539BFE3C6832141963A236
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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240676312.bat

Path C:\Windows\SysWOW64\240676312.bat
Size 51KB
SHA256 bef1daf76e1da87507e1cf6e0a6e75402cb000d6d77b36c5028447368714ac5f
MD5 191bc71859759d45405ca1759a30a00e
SHA1 6de86be931c39f9b61c2bb6bb196e3ba9e0cab3f
SHA512 e39bc96deef3e1cbfccfa9e94d1bea3e36350a53376bd323028a98e21f403c72ae1e707f87c52f59e08ab54023c77f8254b0f15a7676186d21419be30289068f
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLIJYH5:1dWubF3n9S91BF3fboEJYH5
TLSH
T11B333A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
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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