gh0strat | 223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d

General

Target

223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe
Size

112KB
MD5

376f65c925a7319f88beee5075cfa944
SHA1

c4e6099c945fb3a686f0a5f32108f3ca1334d3be
SHA256

223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d
SHA512

1bcde068e944f698ef3ef93804c525c118854873011b7c2435bbb0a6db5be0d1b56cf99e1d6de42460cd76056dd215e83442a6791ee8b3c3f3a246b113a90f14
SSDEEP

1536:vqEA70HzLJksPEOajozLElnqiO2HdJ/tHi:vXTLJkQ7zAV37tC

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000234bb-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\conhost\Parameters\ServiceDll = "C:\\Program Files (x86)\\Google\\240631921.dll"	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe

Executes dropped EXE 1 IoCs

pid	Process
1056	conhost.exe

Loads dropped DLL 3 IoCs

pid	Process
636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe
3712	svchost.exe
1056	conhost.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

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

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\240631921.dll	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.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	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.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	conhost.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
2788	cmd.exe
1840	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1840	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe
636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 2788	636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe	87
PID 636 wrote to memory of 2788	636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe	87
PID 636 wrote to memory of 2788	636	223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe	87
PID 2788 wrote to memory of 1840	2788	cmd.exe	89
PID 2788 wrote to memory of 1840	2788	cmd.exe	89
PID 2788 wrote to memory of 1840	2788	cmd.exe	89
PID 3712 wrote to memory of 1056	3712	svchost.exe	94
PID 3712 wrote to memory of 1056	3712	svchost.exe	94
PID 3712 wrote to memory of 1056	3712	svchost.exe	94

C:\Users\Admin\AppData\Local\Temp\223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe
"C:\Users\Admin\AppData\Local\Temp\223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Checks computer location settings
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:636
- 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\223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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:1840

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "conhost"
1⤵
PID:2364

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "conhost"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Windows\SysWOW64\conhost.exe
  C:\Windows\system32\conhost.exe "c:\program files (x86)\google\240631921.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1056

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:\Program Files (x86)\Google\240631921.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

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C:\Windows\SysWOW64\conhost.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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Analysis

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