gh0strat | 7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f

General

Target
7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.exe
Size 1.9MB
Sample260804-1853qa1grf
SHA256 7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f
MD5 f5a958134dd1f0fd4ae2dead4a8a2007
SHA1 356151ab89422ce782452f28954f72eb7bd24d31
SHA512 fe7c3966e913df1f556dac6dcd2be9f0f00b9e08d4aed791d0228ad6020032b6b0e24bc7ebf2963dca475b07150126e3ff029e216b6a0dba09152eab818d2fce
SSDEEP 24576:yYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnFyzHJuZfjQQQQ/1A4:yYREXSVMDi36ojQQQQ/C4
TLSH
T17B955C027A81CFF2D30F5830C4A29BF59577AE24DE1187C7A3E5FE2D79322516926227
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/0x0008000000024570-5.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\\240646515.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
1804	look2.exe
3344	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
1804	look2.exe
2852	svchost.exe
3344	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240646515.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

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	7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.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
4356	7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.exe
4356	7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 1804	4356	7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.exe	85
PID 2852 wrote to memory of 3344	2852	svchost.exe	91

C:\Users\Admin\AppData\Local\Temp\7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.exe
"C:\Users\Admin\AppData\Local\Temp\7e28b1017d3375175b435ba990aae1637296f7505369ec13942a67a5cd512e5f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4356
- 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:1804

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4788

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:2852
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240646515.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3344

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:3524

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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240646515.bat

Path C:\Windows\SysWOW64\240646515.bat
Size 51KB
SHA256 0def69a712652a71c69afb659e4030484d3b5929075b532ec6d030de3250ab0a
MD5 64d7d0ffa4a7d4e12bf0ce7537449c6b
SHA1 39aa3c40a96161bbb16cc21be5ca40c2d54d492f
SHA512 ed026111413cf48023ba8ee455df01fbcb60f3da8c20bf06f4312dcc276a74ca5365c9bd378c30829323f861a7d99ac1be87fe426554bc38c6bd41e6b748b3a8
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLPJYH5:1dWubF3n9S91BF3fborJYH5
TLSH
T1CA333A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
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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