Analysis
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max time kernel
135s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
06/03/2025, 00:22
Static task
static1
Behavioral task
behavioral1
Sample
43bc911d4184132dc67be0bfa91eeab77bc81a990a9f011ef3048c32ecb17ac5.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
43bc911d4184132dc67be0bfa91eeab77bc81a990a9f011ef3048c32ecb17ac5.dll
Resource
win10v2004-20250217-en
General
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Target
43bc911d4184132dc67be0bfa91eeab77bc81a990a9f011ef3048c32ecb17ac5.dll
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Size
137KB
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MD5
22d818083c101f819e075dcb5499195c
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SHA1
e895d8d3abba9d7040c7b1f523ce62ea1433c76f
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SHA256
43bc911d4184132dc67be0bfa91eeab77bc81a990a9f011ef3048c32ecb17ac5
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SHA512
a6eb06410ff75d3760d89e4d7b6148c9271364590a94c79209929652c7ff54ac81c7c176ec074f6fb5874cd6c788d61de12b5900fb46bc4336c190de6470e1b0
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SSDEEP
3072:mR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuX:D25GgFny61mrad
Malware Config
Signatures
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Gh0st RAT payload 3 IoCs
resource yara_rule behavioral2/memory/3724-5-0x0000000010000000-0x000000001001C000-memory.dmp family_gh0strat behavioral2/memory/3724-6-0x0000000010000000-0x000000001001C000-memory.dmp family_gh0strat behavioral2/memory/3724-39-0x0000000010000000-0x000000001001C000-memory.dmp family_gh0strat -
Gh0strat family
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Blocklisted process makes network request 1 IoCs
flow pid Process 9 3724 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.
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Ports Spoolsv.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon Spoolsv.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\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\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\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\WSD Port\Adapters\WSPrint\OfflinePorts 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 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\Ports Spoolsv.exe -
Sets service image path in registry 2 TTPs 2 IoCs
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/3724-5-0x0000000010000000-0x000000001001C000-memory.dmp acprotect behavioral2/memory/3724-7-0x0000000002DE0000-0x0000000002DFD000-memory.dmp acprotect behavioral2/memory/3724-6-0x0000000010000000-0x000000001001C000-memory.dmp acprotect behavioral2/memory/3724-10-0x0000000002DE0000-0x0000000002DFD000-memory.dmp acprotect behavioral2/memory/3724-12-0x0000000002DE0000-0x0000000002DFD000-memory.dmp acprotect behavioral2/memory/3724-18-0x0000000002DE0000-0x0000000002DFD000-memory.dmp acprotect behavioral2/memory/3724-14-0x0000000002DE0000-0x0000000002DFD000-memory.dmp acprotect behavioral2/memory/3724-13-0x0000000002DE0000-0x0000000002DFD000-memory.dmp acprotect behavioral2/memory/4904-25-0x0000000003150000-0x000000000316D000-memory.dmp acprotect behavioral2/memory/4904-30-0x0000000003150000-0x000000000316D000-memory.dmp acprotect behavioral2/memory/4904-28-0x0000000003150000-0x000000000316D000-memory.dmp acprotect behavioral2/memory/4904-31-0x0000000003150000-0x000000000316D000-memory.dmp acprotect behavioral2/memory/4904-26-0x0000000003150000-0x000000000316D000-memory.dmp acprotect behavioral2/memory/4904-29-0x0000000003150000-0x000000000316D000-memory.dmp acprotect behavioral2/memory/3724-39-0x0000000010000000-0x000000001001C000-memory.dmp acprotect -
Drops file in System32 directory 10 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\com\comb.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\Miscson.dll rundll32.exe File created C:\Windows\SysWOW64\Miscson.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\scsimon.dll rundll32.exe File created C:\Windows\SysWOW64\scsimon.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\scsimon.dll svchost.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 created C:\Windows\SysWOW64\scsimon.dll svchost.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3724 set thread context of 4904 3724 rundll32.exe 91 -
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 1116 3724 WerFault.exe 87 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Checks SCSI registry key(s) 3 TTPs 12 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process 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_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&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 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\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\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 -
Modifies data under HKEY_USERS 22 IoCs
description ioc Process 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-1-5-20\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\Fax = "winspool,Ne02:,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\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\Devices\Send To OneNote 2016 = "winspool,nul:" 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 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\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\S-1-5-20\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\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 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\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\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45" Spoolsv.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3724 rundll32.exe Token: SeDebugPrivilege 4904 svchost.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 376 wrote to memory of 3724 376 rundll32.exe 87 PID 376 wrote to memory of 3724 376 rundll32.exe 87 PID 376 wrote to memory of 3724 376 rundll32.exe 87 PID 3724 wrote to memory of 4904 3724 rundll32.exe 91 PID 3724 wrote to memory of 4904 3724 rundll32.exe 91 PID 3724 wrote to memory of 4904 3724 rundll32.exe 91 PID 3724 wrote to memory of 4904 3724 rundll32.exe 91
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\43bc911d4184132dc67be0bfa91eeab77bc81a990a9f011ef3048c32ecb17ac5.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:376 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\43bc911d4184132dc67be0bfa91eeab77bc81a990a9f011ef3048c32ecb17ac5.dll,#12⤵
- 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:3724 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3724 -s 6163⤵
- Program crash
PID:1116
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe -k rundll323⤵
- 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:4904
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3724 -ip 37241⤵PID:2296
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C:\Windows\system32\Spoolsv.exeSpoolsv.exe1⤵PID:5860
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C:\Windows\system32\Spoolsv.exeSpoolsv.exe1⤵
- Boot or Logon Autostart Execution: Port Monitors
- Checks SCSI registry key(s)
- Modifies data under HKEY_USERS
PID:5800
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Port Monitors
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Port Monitors
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
137KB
MD5d965445b8ef91426ad70919b0ba31530
SHA1b8d8930350436c1241ca60eb6b17beb5345570da
SHA256af8c3f95ec4492d25742e0fcebdc4c3a8e46b0c8ea011ea267e789a2276084d9
SHA51299a2aaac67a0dd0444b2880c6570252097798aeb2840103fe1c7192c999b8a96bd2845411f4ca8d7c76ace43553a641e579314d7f3af13e70191064ec95ffe4c
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Filesize
137KB
MD5a092f9e6827fb6a007dfb499e109733a
SHA1533f7f388d690e20ba71db9cc456e2fb7b0808a8
SHA25637fc99c48cc9ac5433cb2fddf13a5663574b2fb2e773bd13810c7ba4de2026f9
SHA512737355d539813e7840301d0521b17dca0d3403a60a005d974cb7cc4272c1ecf9ba52a1f425d540ba2ee3b9fb675884e0932cb7f26aa994e9fd40c7ae78a566db
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Filesize
128B
MD56b374ba9e5f2261d9c87a370292779aa
SHA138c055538564ded5631e706b4b97b2deabde6a01
SHA2564418ce9e355210c7bffc5f0473380609b27e6aa236c3486ff00256356a334bf0
SHA5123e41fb097018e78ac7e758dd6faf40f651c5bc0d03041719d67cc2026e7bb07df2f445cfa070b3b1574b7ff17d71baec74f28cf62545fb37b27abbbaaa8d1721
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Filesize
137KB
MD532d335360ba47e6c6bc2ca48fc69ae8e
SHA17816fec032823bdc4747abfc2fcc68f780393e93
SHA25645bb75add1be524367d2f07dc1491077a86a07f1d7849963b26dbaea87871641
SHA512bb8a9c8a6c8affd908ea033fd27239013e84ece55ad596b362d2b3568ddf8b4191eeb1ea57034e0ac64c20f1e879bfcec788178b34d3b00532baefe62dc0a38b