gh0strat | 59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60

General

Target
59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe
Size 1.6MB
Sample260731-eayebsan8t
SHA256 59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60
MD5 4797b2a3c85ba685182ea73202576e90
SHA1 962a66af7b192276cdd4fa07ac4bedfc806628b6
SHA512 d7900eb5db46619573e86d77b8186c3598a91b8f549c22c37cfa53a2471a6b3421eaf2931c8a09a9f5f9cf348b5f3b6f9fb67d43e7a090dc370ece86bdf8f754
SSDEEP 24576:CYFbkIsaPiXSVnC7Yp9zkNmZG8RRln2yzHGi6PimC7sJ:CYREXSVMDi3J66mC7sJ
TLSH
T1B8858C13BA81CFB1C51F1530C8A697F69677AF40CE118BC7A398FE2D79721829536227
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/0x0007000000024406-5.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\\240665109.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
4616	look2.exe
1656	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
4616	look2.exe
2208	svchost.exe
1656	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\240665109.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4460	59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe
4460	59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 4616	4460	59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe	85
PID 2208 wrote to memory of 1656	2208	svchost.exe	92

C:\Users\Admin\AppData\Local\Temp\59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe
"C:\Users\Admin\AppData\Local\Temp\59327b1bc14cde324e715d72251d73afe60bd609ea357e3da02285df5f067a60.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4460
- 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:4616

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2064

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:2208
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240665109.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1656

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:3448

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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240665109.bat

Path C:\Windows\SysWOW64\240665109.bat
Size 51KB
SHA256 9c678efb17b06d11314508e293ecf000c73801c690795aa10958b43d6b4a6b18
MD5 b39c14f244001bb849a70d3f713293ff
SHA1 762d3fad3d727c0f52fac89c55af2e643dcf2449
SHA512 73965d1f1090be8a895ade4444119384a6d41eba1ca404609bd9d91ff548ab833188cb44489de5f6e6cbdc446b9387b8058f298451f0a102ed4813c7cba6345d
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoL/JYH5:1dWubF3n9S91BF3fborJYH5
TLSH
T18B334A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
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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