gh0strat | cf179a8381999bedd961f8d46da9a45ea80cfcaf206d21a0ef783f320e99ebfc

General

Target

cf179a8381999bedd961f8d46da9a45ea80cfcaf206d21a0ef783f320e99ebfc.dll
Size

137KB
MD5

6678cf218cec264e948790de93f7e125
SHA1

b57127f262fc02db7c10bfe7bd5e6d53877e6e47
SHA256

cf179a8381999bedd961f8d46da9a45ea80cfcaf206d21a0ef783f320e99ebfc
SHA512

96b8c5c389019d65a512e4032d01946c3c1ab4bc6587bb453bc2f7bce5fe5b39c8194223e6bd284a7bfa163af2a315cc509b273d7c54b8cc8dfb03f5645fb62b
SSDEEP

3072:QR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuW:125GgFny61mraw

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/5040-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/5040-6-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/5040-33-0x0000000010000000-0x000000001001C000-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	5040	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\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\Appmon\Ports	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\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\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	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\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\Local Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port\Ports	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/5040-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/5040-6-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/5040-7-0x0000000000BD0000-0x0000000000BED000-memory.dmp	acprotect
behavioral2/memory/5040-14-0x0000000000BD0000-0x0000000000BED000-memory.dmp	acprotect
behavioral2/memory/5040-15-0x0000000000BD0000-0x0000000000BED000-memory.dmp	acprotect
behavioral2/memory/5040-10-0x0000000000BD0000-0x0000000000BED000-memory.dmp	acprotect
behavioral2/memory/5040-13-0x0000000000BD0000-0x0000000000BED000-memory.dmp	acprotect
behavioral2/memory/5040-12-0x0000000000BD0000-0x0000000000BED000-memory.dmp	acprotect
behavioral2/memory/1584-25-0x0000000003290000-0x00000000032AD000-memory.dmp	acprotect
behavioral2/memory/1584-26-0x0000000003290000-0x00000000032AD000-memory.dmp	acprotect
behavioral2/memory/1584-29-0x0000000003290000-0x00000000032AD000-memory.dmp	acprotect
behavioral2/memory/1584-30-0x0000000003290000-0x00000000032AD000-memory.dmp	acprotect
behavioral2/memory/1584-31-0x0000000003290000-0x00000000032AD000-memory.dmp	acprotect
behavioral2/memory/1584-28-0x0000000003290000-0x00000000032AD000-memory.dmp	acprotect
behavioral2/memory/5040-33-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	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 5040 set thread context of 1584	5040	rundll32.exe	87

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
1068	5040	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 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
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\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&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	Spoolsv.exe

Modifies data under HKEY_USERS 22 IoCs

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5040	rundll32.exe
Token: SeDebugPrivilege	1584	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 5040	4612	rundll32.exe	84
PID 4612 wrote to memory of 5040	4612	rundll32.exe	84
PID 4612 wrote to memory of 5040	4612	rundll32.exe	84
PID 5040 wrote to memory of 1584	5040	rundll32.exe	87
PID 5040 wrote to memory of 1584	5040	rundll32.exe	87
PID 5040 wrote to memory of 1584	5040	rundll32.exe	87
PID 5040 wrote to memory of 1584	5040	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf179a8381999bedd961f8d46da9a45ea80cfcaf206d21a0ef783f320e99ebfc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf179a8381999bedd961f8d46da9a45ea80cfcaf206d21a0ef783f320e99ebfc.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:5040
- - 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:1584
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 616
    3⤵
    - Program crash
    PID:1068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5040 -ip 5040
1⤵
PID:2560

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:2816

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
c77d0c83f7447bf0eaac34677e44a521

SHA1
1d1dcae8eb6730f16c2705961712c5835eed2327

SHA256
e02542d8e159cb2001289fb91f6058d479ab682930800269aa9dcfcfa7491d57

SHA512
3c2a98af60860977226e8c4364fb1d7232838e848a6e27abedf0d897bb6572cb5a60631296c7dd247c40b3789926d4d1b43595e535a764b99c321d6681dec33d

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

Filesize
128B

MD5
aec634c420fd1de3bb251aa5a1cf0056

SHA1
559a489e8c3e49e1bc74fdcda39e19e170aee3bf

SHA256
66f5229e220de6977d0732f3d76016668264f3eaa8422c9217d2bbaba80aa99e

SHA512
8327b404d317ac45eb2db128db17e4c650fbb7d67b15a20c70bb3638765f0ed199ba54a11acd96b99a994fc51c2298bf2ec2278626b5e0eb65e8bfd116994d86

Download Submit
memory/1584-18-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download
memory/1584-31-0x0000000003290000-0x00000000032AD000-memory.dmp

Filesize
116KB

Download
memory/1584-16-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download
memory/1584-30-0x0000000003290000-0x00000000032AD000-memory.dmp

Filesize
116KB

Download
memory/1584-23-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download
memory/1584-17-0x0000000000DC0000-0x0000000000DE3000-memory.dmp

Filesize
140KB

Download
memory/1584-29-0x0000000003290000-0x00000000032AD000-memory.dmp

Filesize
116KB

Download
memory/1584-26-0x0000000003290000-0x00000000032AD000-memory.dmp

Filesize
116KB

Download
memory/1584-25-0x0000000003290000-0x00000000032AD000-memory.dmp

Filesize
116KB

Download
memory/1584-28-0x0000000003290000-0x00000000032AD000-memory.dmp

Filesize
116KB

Download
memory/1584-36-0x0000000001170000-0x0000000001197000-memory.dmp

Filesize
156KB

Download
memory/5040-15-0x0000000000BD0000-0x0000000000BED000-memory.dmp

Filesize
116KB

Download
memory/5040-12-0x0000000000BD0000-0x0000000000BED000-memory.dmp

Filesize
116KB

Download
memory/5040-13-0x0000000000BD0000-0x0000000000BED000-memory.dmp

Filesize
116KB

Download
memory/5040-10-0x0000000000BD0000-0x0000000000BED000-memory.dmp

Filesize
116KB

Download
memory/5040-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/5040-14-0x0000000000BD0000-0x0000000000BED000-memory.dmp

Filesize
116KB

Download
memory/5040-7-0x0000000000BD0000-0x0000000000BED000-memory.dmp

Filesize
116KB

Download
memory/5040-33-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/5040-35-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/5040-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads