gh0strat | 4d0739e29fbb0ac6129a7d9346181cd57007829a4effc5b109ffd2f076b48ada

General

Target

4d0739e29fbb0ac6129a7d9346181cd57007829a4effc5b109ffd2f076b48ada.dll
Size

137KB
MD5

256239d6d93f9bfec7e11ade687a349f
SHA1

1248f96c11c35b9777be49372e19ff0614fe831d
SHA256

4d0739e29fbb0ac6129a7d9346181cd57007829a4effc5b109ffd2f076b48ada
SHA512

e8cad613e22f395e5c88051157f7d65bca1b026c1b88b9dd7b108bc68862be94ffcb8ca3cbff41930936a570b9c01daad6782efc8ea16a98af0d9b5e957cf649
SSDEEP

3072:IR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuq:d25GgFny61mraQ

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2272-6-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2272-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/3084-22-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2272-32-0x0000000010000000-0x000000001001C000-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
4	2272	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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	svchost.exe
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\Appmon	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\Adapters\IPP	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Local Port	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
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\Microsoft Shared Fax Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD 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\SCSI Port Monitor	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Ports	Spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.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/2272-6-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2272-7-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/2272-14-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/2272-18-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/2272-13-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/2272-12-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/2272-10-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/2272-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/3084-22-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/3084-25-0x0000000002C70000-0x0000000002C8D000-memory.dmp	acprotect
behavioral2/memory/3084-30-0x0000000002C70000-0x0000000002C8D000-memory.dmp	acprotect
behavioral2/memory/3084-31-0x0000000002C70000-0x0000000002C8D000-memory.dmp	acprotect
behavioral2/memory/3084-29-0x0000000002C70000-0x0000000002C8D000-memory.dmp	acprotect
behavioral2/memory/3084-28-0x0000000002C70000-0x0000000002C8D000-memory.dmp	acprotect
behavioral2/memory/3084-26-0x0000000002C70000-0x0000000002C8D000-memory.dmp	acprotect
behavioral2/memory/2272-32-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2272-33-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2272 set thread context of 3084	2272	rundll32.exe	93

Drops file in Windows directory 4 IoCs

description	ioc	Process
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
File created	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
384	2272	WerFault.exe	89

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 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\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID	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 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\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\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
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_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	Spoolsv.exe

Modifies data under HKEY_USERS 22 IoCs

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	rundll32.exe
Token: SeDebugPrivilege	3084	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 2272	1936	rundll32.exe	89
PID 1936 wrote to memory of 2272	1936	rundll32.exe	89
PID 1936 wrote to memory of 2272	1936	rundll32.exe	89
PID 2272 wrote to memory of 3084	2272	rundll32.exe	93
PID 2272 wrote to memory of 3084	2272	rundll32.exe	93
PID 2272 wrote to memory of 3084	2272	rundll32.exe	93
PID 2272 wrote to memory of 3084	2272	rundll32.exe	93

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d0739e29fbb0ac6129a7d9346181cd57007829a4effc5b109ffd2f076b48ada.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d0739e29fbb0ac6129a7d9346181cd57007829a4effc5b109ffd2f076b48ada.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:2272
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 616
    3⤵
    - Program crash
    PID:384
- - 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:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2272 -ip 2272
1⤵
PID:448

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:3200

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

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Downloads

C:\Windows\AppPatch\ComBack.Dll

Filesize
137KB

MD5
a288e80d5bb280403a81e0e744719725

SHA1
d80dea7d42a44041443c60b913fb859a54f0bfe8

SHA256
537e6dec59c34a6358a56ea1d3e38888660279992a020cda2cada6e83388ba2b

SHA512
f5f5aedcd4ce6fabbe51c07dbc317719859d1c679d6feb8cc2b5c4387291b5f4a122063a3d678527dd53bd323603884446b3c503cdf9f7ce371524112f427d54

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

Filesize
128B

MD5
63e021681fb667b44bb6210314b0c1a9

SHA1
0cc7d63f7607b4d4fb1126e9ac01b8a33e4ca38e

SHA256
5b0d27319ee1f1f674ce2fbf8cec43d4474901d4cae0cb7be1d6922d1ce439ed

SHA512
d20293ed58e7e8ea1b762cfaa58d25a8f1c4cedaf008b6cbeda8a909adcbe8008556aeeb662a7de38397c767869190a01fc07fc1f89450f4fc34081af8ec573a

Download Submit
memory/2272-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2272-35-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/2272-33-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/2272-18-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/2272-32-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2272-13-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/2272-12-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/2272-10-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/2272-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2272-14-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/2272-7-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/3084-15-0x0000000000E00000-0x0000000000E27000-memory.dmp

Filesize
156KB

Download
memory/3084-25-0x0000000002C70000-0x0000000002C8D000-memory.dmp

Filesize
116KB

Download
memory/3084-30-0x0000000002C70000-0x0000000002C8D000-memory.dmp

Filesize
116KB

Download
memory/3084-31-0x0000000002C70000-0x0000000002C8D000-memory.dmp

Filesize
116KB

Download
memory/3084-29-0x0000000002C70000-0x0000000002C8D000-memory.dmp

Filesize
116KB

Download
memory/3084-28-0x0000000002C70000-0x0000000002C8D000-memory.dmp

Filesize
116KB

Download
memory/3084-26-0x0000000002C70000-0x0000000002C8D000-memory.dmp

Filesize
116KB

Download
memory/3084-22-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3084-16-0x0000000000860000-0x0000000000883000-memory.dmp

Filesize
140KB

Download
memory/3084-17-0x0000000000E00000-0x0000000000E27000-memory.dmp

Filesize
156KB

Download
memory/3084-36-0x0000000000E00000-0x0000000000E27000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads