gh0strat | 8704cf10ed92c88641acbd37f6b4f62ef95c85fb7b630e00e57d7b522d9492e7

General

Target

8704cf10ed92c88641acbd37f6b4f62ef95c85fb7b630e00e57d7b522d9492e7.dll
Size

137KB
MD5

de3cfd203d40a4be55c8366cf203f39a
SHA1

8c0ce7bc3e35bac8a09bccfdddea49d6d6f7c6e8
SHA256

8704cf10ed92c88641acbd37f6b4f62ef95c85fb7b630e00e57d7b522d9492e7
SHA512

fb4b24226730765b06a7a9a08fa60cc1a3dbbb23eec8e57f777562028c68e33a1924fd88e9193b66889f4bd16be076b20a6af2f8b01173d9022b07f49b76be7f
SSDEEP

3072:SR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu1:325GgFny61mrar

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1860-6-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/1860-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/1860-33-0x0000000010000000-0x000000001001C000-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
7	1860	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	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Local Port	Spoolsv.exe
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\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\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	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\WSPrint	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\Standard TCP/IP Port	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\IPP	Spoolsv.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 15 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/memory/1860-6-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/1860-10-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/1860-13-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/1860-12-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/1860-18-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/1860-14-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/1860-7-0x0000000002770000-0x000000000278D000-memory.dmp	acprotect
behavioral2/memory/1860-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/4920-24-0x0000000003270000-0x000000000328D000-memory.dmp	acprotect
behavioral2/memory/4920-25-0x0000000003270000-0x000000000328D000-memory.dmp	acprotect
behavioral2/memory/4920-29-0x0000000003270000-0x000000000328D000-memory.dmp	acprotect
behavioral2/memory/4920-30-0x0000000003270000-0x000000000328D000-memory.dmp	acprotect
behavioral2/memory/4920-28-0x0000000003270000-0x000000000328D000-memory.dmp	acprotect
behavioral2/memory/4920-27-0x0000000003270000-0x000000000328D000-memory.dmp	acprotect
behavioral2/memory/1860-33-0x0000000010000000-0x000000001001C000-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 1860 set thread context of 4920	1860	rundll32.exe	86

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
1540	1860	WerFault.exe	83

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\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&000001	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	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&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\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&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\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-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	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-1-5-20\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 Print to PDF = "winspool,Ne01:"	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\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-1-5-20\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\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-1-5-19\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\Devices\Send To OneNote 2016 = "winspool,nul:"	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\Fax = "winspool,Ne02:"	Spoolsv.exe
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\S-1-5-19\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\Microsoft XPS Document Writer = "winspool,Ne00:"	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\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\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	rundll32.exe
Token: SeDebugPrivilege	4920	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1860	1588	rundll32.exe	83
PID 1588 wrote to memory of 1860	1588	rundll32.exe	83
PID 1588 wrote to memory of 1860	1588	rundll32.exe	83
PID 1860 wrote to memory of 4920	1860	rundll32.exe	86
PID 1860 wrote to memory of 4920	1860	rundll32.exe	86
PID 1860 wrote to memory of 4920	1860	rundll32.exe	86
PID 1860 wrote to memory of 4920	1860	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8704cf10ed92c88641acbd37f6b4f62ef95c85fb7b630e00e57d7b522d9492e7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8704cf10ed92c88641acbd37f6b4f62ef95c85fb7b630e00e57d7b522d9492e7.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:1860
- - 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:4920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 616
    3⤵
    - Program crash
    PID:1540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1860 -ip 1860
1⤵
PID:3304

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:3120

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
b19859c59f32984bcc7e4dae2bf40ed7

SHA1
871679a6d8a70c9f8573f5efb4480a9f6a2bbdd7

SHA256
d63f5415e18d0f681a22d500adfb64d93a725a836fb0e19e757cbbef556f4d01

SHA512
0fe90043ca5a0b9d64f5d50042c2a4af1d8d54bdfd109065768da17b36dd5a5ce24c40e21ac0fa7adf9065b01ae6feaa730b88b802958678f03249c57d4fd7c3

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

Filesize
128B

MD5
179e444ca8f09a4e5c0b3f0698cbf196

SHA1
9156c283fb80b28cca0998634058c004af52197b

SHA256
708b4c8995d8e5a6b9c648cb98432cebde6b9e526543e1061dc7ecaf97a2c4e9

SHA512
aa0c2d30af5458a598f6553fcd77dbf7e8ae919fe505f4cea8ce69c07b5ac0863d087464b9f2c840eef592563a063724667275d67d0199e891d98be8e6ad08b1

Download Submit
memory/1860-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1860-10-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/1860-34-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/1860-18-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/1860-33-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1860-12-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/1860-14-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/1860-7-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/1860-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1860-13-0x0000000002770000-0x000000000278D000-memory.dmp

Filesize
116KB

Download
memory/4920-16-0x0000000000E60000-0x0000000000E83000-memory.dmp

Filesize
140KB

Download
memory/4920-24-0x0000000003270000-0x000000000328D000-memory.dmp

Filesize
116KB

Download
memory/4920-25-0x0000000003270000-0x000000000328D000-memory.dmp

Filesize
116KB

Download
memory/4920-29-0x0000000003270000-0x000000000328D000-memory.dmp

Filesize
116KB

Download
memory/4920-30-0x0000000003270000-0x000000000328D000-memory.dmp

Filesize
116KB

Download
memory/4920-28-0x0000000003270000-0x000000000328D000-memory.dmp

Filesize
116KB

Download
memory/4920-27-0x0000000003270000-0x000000000328D000-memory.dmp

Filesize
116KB

Download
memory/4920-17-0x0000000001400000-0x0000000001427000-memory.dmp

Filesize
156KB

Download
memory/4920-15-0x0000000001400000-0x0000000001427000-memory.dmp

Filesize
156KB

Download
memory/4920-35-0x0000000001400000-0x0000000001427000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads