gh0strat | 6113c63a70c3e9ac57536d3998f8f931ded0b674ba2004843b248f0c2996244c

General

Target

6113c63a70c3e9ac57536d3998f8f931ded0b674ba2004843b248f0c2996244c.dll
Size

137KB
MD5

49c89e1e64663b9e6aafa49230980375
SHA1

460a588f167459664b7181ad1458e7b834c4d936
SHA256

6113c63a70c3e9ac57536d3998f8f931ded0b674ba2004843b248f0c2996244c
SHA512

58340fe14eb84ed6237337697fe607b8340680f717286ab58e078c48910108e054457721d3abe50efecdfda3174e4d5a8159c196262283b7ff5bfb27e98f91ab
SSDEEP

3072:YR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuG:N25GgFny61mra0

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3032-7-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/3032-9-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/1464-23-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/3032-38-0x0000000010000000-0x000000001001C000-memory.dmp	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
Gh0strat family
gh0strat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
9	3032	rundll32.exe

Boot or Logon Autostart Execution: Port Monitors 1 TTPs 16 IoCs

Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

persistence

Port Monitors

T1547.010

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Local Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Microsoft Shared Fax Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\USB Monitor	Spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\IPP	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint\OfflinePorts	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	svchost.exe

Sets service image path in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	svchost.exe

ACProtect 1.3x - 1.4x DLL software 17 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/memory/3032-5-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect
behavioral2/memory/3032-7-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/3032-9-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/3032-8-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect
behavioral2/memory/3032-14-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect
behavioral2/memory/3032-13-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect
behavioral2/memory/3032-12-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect
behavioral2/memory/3032-15-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect
behavioral2/memory/1464-23-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/1464-27-0x00000000032D0000-0x00000000032ED000-memory.dmp	acprotect
behavioral2/memory/1464-31-0x00000000032D0000-0x00000000032ED000-memory.dmp	acprotect
behavioral2/memory/1464-32-0x00000000032D0000-0x00000000032ED000-memory.dmp	acprotect
behavioral2/memory/1464-30-0x00000000032D0000-0x00000000032ED000-memory.dmp	acprotect
behavioral2/memory/1464-29-0x00000000032D0000-0x00000000032ED000-memory.dmp	acprotect
behavioral2/memory/1464-26-0x00000000032D0000-0x00000000032ED000-memory.dmp	acprotect
behavioral2/memory/3032-38-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/3032-37-0x0000000002AA0000-0x0000000002ABD000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Miscson.dll	svchost.exe
File created	C:\Windows\SysWOW64\Miscson.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\scsimon.dll	svchost.exe
File created	C:\Windows\SysWOW64\scsimon.dll	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 1464	3032	rundll32.exe	87

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
208	3032	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Checks SCSI registry key(s) 3 TTPs 12 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\HardwareID	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000	Spoolsv.exe

Modifies data under HKEY_USERS 22 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Send To OneNote 2016 = "winspool,nul:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft XPS Document Writer = "winspool,Ne00:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft Print to PDF = "winspool,Ne01:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Fax = "winspool,Ne02:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Fax = "winspool,Ne02:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Send To OneNote 2016 = "winspool,nul:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft XPS Document Writer = "winspool,Ne00:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Fax = "winspool,Ne02:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft Print to PDF = "winspool,Ne01:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Fax = "winspool,Ne02:"	Spoolsv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	rundll32.exe
Token: SeDebugPrivilege	1464	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 3032	4348	rundll32.exe	84
PID 4348 wrote to memory of 3032	4348	rundll32.exe	84
PID 4348 wrote to memory of 3032	4348	rundll32.exe	84
PID 3032 wrote to memory of 1464	3032	rundll32.exe	87
PID 3032 wrote to memory of 1464	3032	rundll32.exe	87
PID 3032 wrote to memory of 1464	3032	rundll32.exe	87
PID 3032 wrote to memory of 1464	3032	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6113c63a70c3e9ac57536d3998f8f931ded0b674ba2004843b248f0c2996244c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4348
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6113c63a70c3e9ac57536d3998f8f931ded0b674ba2004843b248f0c2996244c.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe -k rundll32
    3⤵
    - Boot or Logon Autostart Execution: Port Monitors
    - Sets service image path in registry
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1464
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 668
    3⤵
    - Program crash
    PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3032 -ip 3032
1⤵
PID:1892

C:\Windows\system32\Spoolsv.exe
Spoolsv.exe
1⤵
- Boot or Logon Autostart Execution: Port Monitors
- Checks SCSI registry key(s)
- Modifies data under HKEY_USERS
PID:3956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Port Monitors

1

T1547.010

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Port Monitors

1

T1547.010

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\AppPatch\ComBack.Dll

Filesize
137KB

MD5
d1f34178c86b3f35400ffdb74ebeb31e

SHA1
4487efad45d15ec1f91151c4f03f6747ec1f0353

SHA256
accce4f7c357a33625581283a9efc2a8eedcf29ccc12d67390dc06d7a0b3785d

SHA512
5e29ab10022e550e9a5b819e221aee282b87a3b706827b5fe3f72dca5c3750a78253b585cfbb6f326dbede6455ed21dc211c73b53cebf6c743cceeca0020be06

Download Submit
C:\Windows\SysWOW64\com\comb.dll

Filesize
128B

MD5
0a9826c23a8ca9e67d0d9e011fffbe6e

SHA1
ec7544ce7c91403285f17d75a73a780d4e0d7345

SHA256
712a5ae493517f006bf0e1779f72a44ab26b328fa3d709c762ebee04e20bcef5

SHA512
0a108565b32874c0d8edb825db915ea4d583dd8ec67b43ba73b4e339adada1a6adb99ff7fff2dbc0671961187efa9eda09a5fda7987fb834605038814445e1b2

Download Submit
memory/1464-30-0x00000000032D0000-0x00000000032ED000-memory.dmp

Filesize
116KB

Download
memory/1464-18-0x0000000001480000-0x00000000014A7000-memory.dmp

Filesize
156KB

Download
memory/1464-39-0x0000000001480000-0x00000000014A7000-memory.dmp

Filesize
156KB

Download
memory/1464-26-0x00000000032D0000-0x00000000032ED000-memory.dmp

Filesize
116KB

Download
memory/1464-29-0x00000000032D0000-0x00000000032ED000-memory.dmp

Filesize
116KB

Download
memory/1464-16-0x0000000001480000-0x00000000014A7000-memory.dmp

Filesize
156KB

Download
memory/1464-17-0x0000000000CE0000-0x0000000000D03000-memory.dmp

Filesize
140KB

Download
memory/1464-25-0x0000000001480000-0x00000000014A7000-memory.dmp

Filesize
156KB

Download
memory/1464-23-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1464-32-0x00000000032D0000-0x00000000032ED000-memory.dmp

Filesize
116KB

Download
memory/1464-31-0x00000000032D0000-0x00000000032ED000-memory.dmp

Filesize
116KB

Download
memory/1464-27-0x00000000032D0000-0x00000000032ED000-memory.dmp

Filesize
116KB

Download
memory/3032-15-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download
memory/3032-7-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3032-8-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download
memory/3032-9-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3032-5-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download
memory/3032-12-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download
memory/3032-13-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download
memory/3032-38-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3032-37-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download
memory/3032-36-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/3032-14-0x0000000002AA0000-0x0000000002ABD000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads