gh0strat | aa3fad3c500cd0572126361e27aea63274a980a0e77863842f3d4fa1248a8432

General

Target

aa3fad3c500cd0572126361e27aea63274a980a0e77863842f3d4fa1248a8432.dll
Size

137KB
MD5

79add39a6175ea4dfe8e8f068a2a3126
SHA1

2575a6cb3a0f73d1e8126abdf29c1f43297f2080
SHA256

aa3fad3c500cd0572126361e27aea63274a980a0e77863842f3d4fa1248a8432
SHA512

153dcec0bc6aefab6e8146e09b8d35efda7f70c19b6c0c0736496e8fd6490c841aec43ea40b89bcfbcb768553068cf975588ec67f6876fd1986b3420db02185f
SSDEEP

3072:6R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuF:v25GgFny61mraH

Score

10^/10

gh0strat discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1484-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/1484-9-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/1484-35-0x0000000010000000-0x000000001001C000-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

7 1484 rundll32.exe

flow	pid	process
7	1484	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:

Spoolsv.exerundll32.exesvchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon	Spoolsv.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	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\WSD Port\Adapters\IPP	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\SCSI Port Monitor	svchost.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\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\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\Ports	Spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	svchost.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 16 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
behavioral2/memory/1484-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/1484-14-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/1484-9-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/1484-13-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/1484-12-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/1484-15-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/1484-10-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/1484-6-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/324-24-0x0000000002950000-0x000000000296D000-memory.dmp	acprotect
behavioral2/memory/324-29-0x0000000002950000-0x000000000296D000-memory.dmp	acprotect
behavioral2/memory/324-28-0x0000000002950000-0x000000000296D000-memory.dmp	acprotect
behavioral2/memory/324-27-0x0000000002950000-0x000000000296D000-memory.dmp	acprotect
behavioral2/memory/324-25-0x0000000002950000-0x000000000296D000-memory.dmp	acprotect
behavioral2/memory/324-30-0x0000000002950000-0x000000000296D000-memory.dmp	acprotect
behavioral2/memory/1484-31-0x0000000003210000-0x000000000322D000-memory.dmp	acprotect
behavioral2/memory/1484-35-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

Processes:

svchost.exerundll32.exe

description	ioc	process
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
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Miscson.dll	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1484 set thread context of 324 1484 rundll32.exe svchost.exe

description	pid	process	target process
PID 1484 set thread context of 324	1484	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

1948 1484 WerFault.exe rundll32.exe

pid	pid_target	process	target process
1948	1484	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&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\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\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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\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\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\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\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\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 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
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-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\Devices	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-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\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
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
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\Fax = "winspool,Ne02:"	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\Microsoft XPS Document Writer = "winspool,Ne00:"	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
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\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exesvchost.exe

description pid process

Token: SeDebugPrivilege 1484 rundll32.exe
Token: SeDebugPrivilege 324 svchost.exe

description	pid	process
Token: SeDebugPrivilege	1484	rundll32.exe
Token: SeDebugPrivilege	324	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1296 wrote to memory of 1484	1296	rundll32.exe	rundll32.exe
PID 1296 wrote to memory of 1484	1296	rundll32.exe	rundll32.exe
PID 1296 wrote to memory of 1484	1296	rundll32.exe	rundll32.exe
PID 1484 wrote to memory of 324	1484	rundll32.exe	svchost.exe
PID 1484 wrote to memory of 324	1484	rundll32.exe	svchost.exe
PID 1484 wrote to memory of 324	1484	rundll32.exe	svchost.exe
PID 1484 wrote to memory of 324	1484	rundll32.exe	svchost.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa3fad3c500cd0572126361e27aea63274a980a0e77863842f3d4fa1248a8432.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa3fad3c500cd0572126361e27aea63274a980a0e77863842f3d4fa1248a8432.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:1484
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 616
    3⤵
    - Program crash
    PID:1948
- - 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:324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1484 -ip 1484
1⤵
PID:2212

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:1084

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
0a08c06f8d22cf8bfee66a717ed1b4e2

SHA1
632c66b955c7368ca481c6c353814a53b5e8d5ea

SHA256
037bcb4bd30afaca6f11299ff23b1aa58398eb44a0c212719bcf3091414b0067

SHA512
ff456dbdf38a557aa752bb2b141a9a19ebf2a34dc1ad9dc61e4e0a4d149441c81d9b9d3395530eb1d25584cb9e0cba3620bb136e04c7e0a35ede689c1a96c2f6

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

Filesize
128B

MD5
bd16ec10d50f20f9fbac7d657b1b30c9

SHA1
5d4f75efcc1d4ee773c1d4f0dd328f2c9d8f16e0

SHA256
abdeed3cfd4f5635340336b97e933147c953a6e0c8053cd57714310de9e65118

SHA512
421ab4dacf5f04e321e054cecfc9aaac1adf3145885c33757d357f8765bf2a2fdb472a7de19806d1e3f92404cf5d7b8d1a93b07796438108242ee18afe77ca2e

Download Submit
memory/324-28-0x0000000002950000-0x000000000296D000-memory.dmp

Filesize
116KB

Download
memory/324-30-0x0000000002950000-0x000000000296D000-memory.dmp

Filesize
116KB

Download
memory/324-36-0x00000000003D0000-0x00000000003F7000-memory.dmp

Filesize
156KB

Download
memory/324-16-0x00000000003D0000-0x00000000003F7000-memory.dmp

Filesize
156KB

Download
memory/324-18-0x00000000003D0000-0x00000000003F7000-memory.dmp

Filesize
156KB

Download
memory/324-17-0x0000000000330000-0x0000000000353000-memory.dmp

Filesize
140KB

Download
memory/324-25-0x0000000002950000-0x000000000296D000-memory.dmp

Filesize
116KB

Download
memory/324-27-0x0000000002950000-0x000000000296D000-memory.dmp

Filesize
116KB

Download
memory/324-29-0x0000000002950000-0x000000000296D000-memory.dmp

Filesize
116KB

Download
memory/324-24-0x0000000002950000-0x000000000296D000-memory.dmp

Filesize
116KB

Download
memory/1484-14-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download
memory/1484-9-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1484-6-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download
memory/1484-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1484-10-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download
memory/1484-15-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download
memory/1484-13-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download
memory/1484-31-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download
memory/1484-35-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1484-34-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/1484-12-0x0000000003210000-0x000000000322D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads