gh0strat | 46f227d962a503eb6276f99d63b891e8de60a1eaf02c768ac4b0aba2e3ac5d56

General

Target

ExeFile (24).exe
Size

112KB
MD5

ca1ad33af1b5a62528075b8d3c69472d
SHA1

8d7307b490bf258572530fba14b0462b7cb974e7
SHA256

46f227d962a503eb6276f99d63b891e8de60a1eaf02c768ac4b0aba2e3ac5d56
SHA512

3ee3b2a1a88fb9be5211a104c3544afa2e59669554d28f149ee62ea3c15ec870ab8d3fc69f32f06006643d2281e01d829969e9a948333b541063225bfeea8ba9
SSDEEP

1536:vqEA70HzLJksPEOajozLElnqiO2sdJ/tHi:vXTLJkQ7zAV3OtC

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002345a-1.dat	family_gh0strat

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

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\serivces\Parameters\ServiceDll = "C:\\Windows\\fonts\\240623375.dll"	ExeFile (24).exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	ExeFile (24).exe

Executes dropped EXE 1 IoCs

pid	Process
1260	serivces.exe

Loads dropped DLL 3 IoCs

pid	Process
1760	ExeFile (24).exe
3560	svchost.exe
1260	serivces.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\serivces.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\serivces.exe	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\fonts\240623375.dll	ExeFile (24).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 5 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	ExeFile (24).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	serivces.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1400	cmd.exe
4124	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4124	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1760	ExeFile (24).exe
1760	ExeFile (24).exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1760	ExeFile (24).exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1760	ExeFile (24).exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 1400	1760	ExeFile (24).exe	86
PID 1760 wrote to memory of 1400	1760	ExeFile (24).exe	86
PID 1760 wrote to memory of 1400	1760	ExeFile (24).exe	86
PID 1400 wrote to memory of 4124	1400	cmd.exe	89
PID 1400 wrote to memory of 4124	1400	cmd.exe	89
PID 1400 wrote to memory of 4124	1400	cmd.exe	89
PID 3560 wrote to memory of 1260	3560	svchost.exe	95
PID 3560 wrote to memory of 1260	3560	svchost.exe	95
PID 3560 wrote to memory of 1260	3560	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\ExeFile (24).exe
"C:\Users\Admin\AppData\Local\Temp\ExeFile (24).exe"
1⤵
- Server Software Component: Terminal Services DLL
- Checks computer location settings
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\ExeFile (24).exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4124

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivces"
1⤵
PID:3300

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivces"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\SysWOW64\serivces.exe
  C:\Windows\system32\serivces.exe "c:\windows\fonts\240623375.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1260

Network

MITRE ATT&CK Enterprise v15

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

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Fonts\240623375.dll

Filesize
37KB

MD5
d120109c51cdb5187c0b926bbbecc7af

SHA1
1fef747d87dcf29e3dec31c5bdf71d05ef6f2b4e

SHA256
0649e4500086724bb606fb46726a6c9c4c7fce062fb8c9eb3d9149200432a08f

SHA512
9ae1a041d004e2ccd16feaf6918b3410dfc6a96bac4fc7857a6c9b767101cb725f0113e9cc4ddaaf832b02ece5d48effc0bb0a2423c11fbeb8b73cb6cdbfbd9c

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C:\Windows\SysWOW64\serivces.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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Analysis

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