gh0strat | 9c4bf360e3751b1b9c55e4d29a4260599f1992652b21a303d8efb03487faf58f

General

Target

9c4bf360e3751b1b9c55e4d29a4260599f1992652b21a303d8efb03487faf58fN.dll
Size

137KB
MD5

3e996002a7e1312c0bbb6f3127cb59c0
SHA1

08ae195aced03ea15565cad00bbe02a854235472
SHA256

9c4bf360e3751b1b9c55e4d29a4260599f1992652b21a303d8efb03487faf58f
SHA512

cb11effabaf7080a1ac7dd2e1329b6eefd148d28d50073c5a63de23ea16309ff0fa9b30291818d103e886d832ebd202b382d8e9df3f6f0f8f0d1dc5001ae046c
SSDEEP

3072:tR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu/:g25GgFny61mrat

Score

10^/10

gh0strat discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/876-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/876-6-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/876-32-0x0000000010000000-0x000000001001C000-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

Processes:

rundll32.exe

flow pid process

9 876 rundll32.exe

flow	pid	process
9	876	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

Processes:

rundll32.exesvchost.exeSpoolsv.exe

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\SCSI Port Monitor	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon\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\WSPrint	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\Local Port	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
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\Standard TCP/IP Port	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
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	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint\OfflinePorts	Spoolsv.exe

Sets service image path in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exesvchost.exe

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.

Processes:

resource	yara_rule
behavioral2/memory/876-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/876-6-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/876-7-0x0000000002640000-0x000000000265D000-memory.dmp	acprotect
behavioral2/memory/876-10-0x0000000002640000-0x000000000265D000-memory.dmp	acprotect
behavioral2/memory/876-18-0x0000000002640000-0x000000000265D000-memory.dmp	acprotect
behavioral2/memory/876-16-0x0000000002640000-0x000000000265D000-memory.dmp	acprotect
behavioral2/memory/876-13-0x0000000002640000-0x000000000265D000-memory.dmp	acprotect
behavioral2/memory/876-12-0x0000000002640000-0x000000000265D000-memory.dmp	acprotect
behavioral2/memory/1860-26-0x00000000005E0000-0x00000000005FD000-memory.dmp	acprotect
behavioral2/memory/1860-25-0x00000000005E0000-0x00000000005FD000-memory.dmp	acprotect
behavioral2/memory/1860-31-0x00000000005E0000-0x00000000005FD000-memory.dmp	acprotect
behavioral2/memory/1860-30-0x00000000005E0000-0x00000000005FD000-memory.dmp	acprotect
behavioral2/memory/1860-29-0x00000000005E0000-0x00000000005FD000-memory.dmp	acprotect
behavioral2/memory/1860-28-0x00000000005E0000-0x00000000005FD000-memory.dmp	acprotect
behavioral2/memory/876-32-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

Processes:

rundll32.exesvchost.exe

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

Processes:

rundll32.exe

description pid process target process

PID 876 set thread context of 1860 876 rundll32.exe svchost.exe

description	pid	process	target process
PID 876 set thread context of 1860	876	rundll32.exe	svchost.exe

Drops file in Windows directory 4 IoCs

Processes:

rundll32.exe

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

Processes:

WerFault.exe

pid pid_target process target process

3688 876 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3688	876	WerFault.exe	rundll32.exe

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

Processes:

rundll32.exesvchost.exe

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

Processes:

Spoolsv.exe

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&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 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&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 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

Modifies data under HKEY_USERS 22 IoCs

Processes:

Spoolsv.exe

description	ioc	process
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\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	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\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\Fax = "winspool,Ne02:"	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
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\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\Devices\Microsoft Print to PDF = "winspool,Ne01:"	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\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\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\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\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\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 Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exesvchost.exe

description pid process

Token: SeDebugPrivilege 876 rundll32.exe
Token: SeDebugPrivilege 1860 svchost.exe

description	pid	process
Token: SeDebugPrivilege	876	rundll32.exe
Token: SeDebugPrivilege	1860	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2056 wrote to memory of 876	2056	rundll32.exe	rundll32.exe
PID 2056 wrote to memory of 876	2056	rundll32.exe	rundll32.exe
PID 2056 wrote to memory of 876	2056	rundll32.exe	rundll32.exe
PID 876 wrote to memory of 1860	876	rundll32.exe	svchost.exe
PID 876 wrote to memory of 1860	876	rundll32.exe	svchost.exe
PID 876 wrote to memory of 1860	876	rundll32.exe	svchost.exe
PID 876 wrote to memory of 1860	876	rundll32.exe	svchost.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c4bf360e3751b1b9c55e4d29a4260599f1992652b21a303d8efb03487faf58fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c4bf360e3751b1b9c55e4d29a4260599f1992652b21a303d8efb03487faf58fN.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:876
- - 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:1860
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 624
    3⤵
    - Program crash
    PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 876 -ip 876
1⤵
PID:3736

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:2652

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
984b1046358fe65a49e509cef8e0e94e

SHA1
afa745385735c0eaf2693f031aed1f68fb04ee79

SHA256
80c50479898d6c7597a547233b573ef8032bd8aa82b7b0be9da656f4c768cc7e

SHA512
1a724a184966796223ac20856139aed731bfffea61e151947e9465fa49e0fc16f8306cf29b686b2053329cdc015f295026c496acc83e80a78b212c29f2c56a1a

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

Filesize
127B

MD5
b0e891e6afd5b50b968786a0d42648bd

SHA1
bac56cfcef2ddf60f59abd40afc7142014144380

SHA256
075f5becc0036774724dadc32e7ab14112d2fb9300e100c616b8c1abc312f668

SHA512
ac0174228d24a8c379c30589a2bb75f4fd55e9d8659afe5283a7d6ba392996c6271842d4d6e6b5204b4fae6e9a88b4ad64f2fb8c618a7250c7f24a6b935b7971

Download Submit
memory/876-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/876-7-0x0000000002640000-0x000000000265D000-memory.dmp

Filesize
116KB

Download
memory/876-10-0x0000000002640000-0x000000000265D000-memory.dmp

Filesize
116KB

Download
memory/876-18-0x0000000002640000-0x000000000265D000-memory.dmp

Filesize
116KB

Download
memory/876-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/876-16-0x0000000002640000-0x000000000265D000-memory.dmp

Filesize
116KB

Download
memory/876-13-0x0000000002640000-0x000000000265D000-memory.dmp

Filesize
116KB

Download
memory/876-35-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/876-32-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/876-12-0x0000000002640000-0x000000000265D000-memory.dmp

Filesize
116KB

Download
memory/1860-17-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download
memory/1860-24-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download
memory/1860-26-0x00000000005E0000-0x00000000005FD000-memory.dmp

Filesize
116KB

Download
memory/1860-25-0x00000000005E0000-0x00000000005FD000-memory.dmp

Filesize
116KB

Download
memory/1860-31-0x00000000005E0000-0x00000000005FD000-memory.dmp

Filesize
116KB

Download
memory/1860-30-0x00000000005E0000-0x00000000005FD000-memory.dmp

Filesize
116KB

Download
memory/1860-29-0x00000000005E0000-0x00000000005FD000-memory.dmp

Filesize
116KB

Download
memory/1860-28-0x00000000005E0000-0x00000000005FD000-memory.dmp

Filesize
116KB

Download
memory/1860-14-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download
memory/1860-15-0x0000000000150000-0x0000000000173000-memory.dmp

Filesize
140KB

Download
memory/1860-36-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads