gh0strat | 4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c

General

Target
4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.exe
Size 1.6MB
Sample260419-2fxfjsbs6n
SHA256 4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c
MD5 23722e6520831a3e5f7a917f2821356f
SHA1 7c8929a1825a8c36cc12dda5e9a3d71e58b189c2
SHA512 92bcdb4b2a280e802b990ee7f2fc6018eb9f78e63a958bfa703cc74980f06793631edcf03b638485708b0e908554b91719f0d69be914c009ea892c08a5c8f736
SSDEEP 24576:jYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnpyzHWgcy:jYREXSVMDi3Icy
TLSH
T1DA75394276C1CFB1C90F1034D896ABF696675E00CE1987CB6395FE2E78712819E36A37
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/0x00070000000243ed-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\\240648250.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
4888	look2.exe
4584	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
4888	look2.exe
3012	svchost.exe
4584	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240648250.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	4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.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	4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.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
1088	4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.exe
1088	4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 4888	1088	4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.exe	85
PID 3012 wrote to memory of 4584	3012	svchost.exe	90

C:\Users\Admin\AppData\Local\Temp\4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.exe
"C:\Users\Admin\AppData\Local\Temp\4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1088
- 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:4888

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:1876

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:3012
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240648250.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4584

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:2100

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 1.6MB
SHA256 4755b2ac739f5558035729a0259fa90f18dfae40cf5abaf8bcd899477a3ee69c
MD5 23722e6520831a3e5f7a917f2821356f
SHA1 7c8929a1825a8c36cc12dda5e9a3d71e58b189c2
SHA512 92bcdb4b2a280e802b990ee7f2fc6018eb9f78e63a958bfa703cc74980f06793631edcf03b638485708b0e908554b91719f0d69be914c009ea892c08a5c8f736
SSDEEP 24576:jYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnpyzHWgcy:jYREXSVMDi3Icy
TLSH
T1DA75394276C1CFB1C90F1034D896ABF696675E00CE1987CB6395FE2E78712819E36A37
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

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

Submit Download

240648250.bat

Path C:\Windows\SysWOW64\240648250.bat
Size 51KB
SHA256 31f5f01baebb4171ac28c2e6047e3c5eff9268a4379b9158f2f36539183b6a1a
MD5 28c85108440f803efe1b7544acf12bac
SHA1 412177dca4994e337ed60e98ba1aa71b3b00e1f4
SHA512 6a988025508cf0e3571b21df2155971ed6316576747997ac9d5ecff5993a991b72af9fbd9f733beb645574f4b11a466a47afca6d1af81f313dd783d529422948
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLkJYH5:1dWubF3n9S91BF3fboIJYH5
TLSH
T107333A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

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

Submit Download

memory/1088-29-0x0000000000A70000-0x0000000000CF1000-memory.dmp

Download

memory/3012-30-0x0000000001300000-0x0000000001581000-memory.dmp

Download

memory/4888-13-0x0000000000A40000-0x0000000000CC1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads