Analysis
- max time kernel
148s - max time network
139s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/10/2026, 18:10
Static task
static1
Behavioral task
behavioral1
Sample
jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe
Resource
win11ltsc2024-20260911-en
General
- Target jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe
- Size 705KB
- Sample261009-wr4fcacw4x
- SHA256 a91c0f017921ace32229b28a2ea739ab3eeba27ec3073554f7efac5783fce31a
- MD5 477d5b37977ced8b83589f2ea087429f
- SHA1 ed77621affd0937f4689bddb69c6f86c3e5def8b
- SHA512 ff95bb64c8a0cad95adec4927342df764caf283477e6b3937b83ab87126d2acbded5218fd1919645cdb9ced9187fc8ed10013cf3659ed41fc2fe056f4795116b
- SSDEEP 12288:wILGrN2jtAR1Q+tdVoCembMSTgCllQzuSJbF:LaraCR9tdVVRz9luzuSJh
- TLSH T1BBE45C61A1D04436F122CE3B9C6BEE64982AFF1C6B586C85FAE4DD0D5F392C174292D3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 40 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\Version = "2,00,045,5" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\(Standard) = "Windows Desktop Update" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\Version = "2,00,045,5" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\ComponentID = "Microsoft Critical Update" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\(Standard) = "Windows Desktop Update" mshotfix.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7} mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\ComponentID = "Microsoft I/O Digital" registry.pif Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7} registry.pif Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA} jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7} jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\(Standard) = "Windows Input Device" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\Version = "1,00,000,0" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\(Standard) = "Windows Input Device" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\StubPath = "c:\\CriticalUpdate.exe" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\Version = "1,00,000,0" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\Version = "2,00,045,5" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA} mshotfix.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA} registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\(Standard) = "Windows Input Device" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\StubPath = "\"%SystemRoot%\\twain_32.exe\"" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\(Standard) = "Windows Desktop Update" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\StubPath = "c:\\CriticalUpdate.exe" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\StubPath = "c:\\CriticalUpdate.exe" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\StubPath = "\"%SystemRoot%\\twain_32.exe\"" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7} CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\ComponentID = "Microsoft I/O Digital" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\ComponentID = "Microsoft I/O Digital" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\ComponentID = "Microsoft Critical Update" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\StubPath = "c:\\CriticalUpdate.exe" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\StubPath = "\"%SystemRoot%\\twain_32.exe\"" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\ComponentID = "Microsoft Critical Update" registry.pif Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA} CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\ComponentID = "Microsoft Critical Update" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\(Standard) = "Windows Desktop Update" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\ComponentID = "Microsoft I/O Digital" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\Version = "1,00,000,0" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99B782AF-0B9A-4FB5-BDD1-D83F4B6218BA}\Version = "2,00,045,5" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\(Standard) = "Windows Input Device" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\StubPath = "\"%SystemRoot%\\twain_32.exe\"" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{AD88BEC6-2BE4-4E8A-A47F-DD87FA67A2A7}\Version = "1,00,000,0" CriticalUpdate.exe - Drops file in Drivers directory 4 IoCs
description ioc Process File created C:\WINDOWS\SYSTEM32\DRIVERS\ETC\hosts registry.pif File created C:\WINDOWS\SYSTEM32\DRIVERS\ETC\hosts CriticalUpdate.exe File created C:\WINDOWS\SYSTEM32\DRIVERS\ETC\hosts jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File created C:\WINDOWS\SYSTEM32\DRIVERS\ETC\hosts mshotfix.exe - Executes dropped EXE 3 IoCs
pid Process 4244 mshotfix.exe 4496 registry.pif 1620 CriticalUpdate.exe - Loads dropped DLL 6 IoCs
pid Process 4492 regsvr32.exe 4492 regsvr32.exe 3480 regsvr32.exe 5836 regsvr32.exe 5836 regsvr32.exe 3924 regsvr32.exe - Adds Run key to start application 2 TTPs 12 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RegistryMon = "c:\\registry.pif" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Security Hot Fix = "\"%SystemRoot%\\mshotfix.exe\"" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RegistryMon = "c:\\registry.pif" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Security Hot Fix = "\"%SystemRoot%\\mshotfix.exe\"" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RegistryMon = "c:\\registry.pif" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RegistryMon = "c:\\registry.pif" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MS_Critical_Update = "c:\\CriticalUpdate.exe" mshotfix.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MS_Critical_Update = "c:\\CriticalUpdate.exe" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Security Hot Fix = "\"%SystemRoot%\\mshotfix.exe\"" registry.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MS_Critical_Update = "c:\\CriticalUpdate.exe" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Security Hot Fix = "\"%SystemRoot%\\mshotfix.exe\"" CriticalUpdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MS_Critical_Update = "c:\\CriticalUpdate.exe" jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe - Installs/modifies Browser Helper Object 2 TTPs 4 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe - Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\bhrw.dll jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File opened for modification C:\Windows\SysWOW64\bhrw.dll mshotfix.exe File opened for modification C:\Windows\SysWOW64\bhrw.dll registry.pif File opened for modification C:\Windows\SysWOW64\bhrw.dll CriticalUpdate.exe - Drops file in Windows directory 24 IoCs
description ioc Process File created C:\Windows\Main menu\Programs\StartUp\dwin32.exe mshotfix.exe File created C:\Windows\twain_32.exe registry.pif File created C:\Windows\mshotfix.exe registry.pif File created C:\Windows\Main menu\Programs\StartUp\screensaver.scr registry.pif File created C:\Windows\Main menu\Programs\StartUp\screensaver.scr CriticalUpdate.exe File created C:\Windows\twain_32.exe jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\taskmon.pif jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\taskmon.pif registry.pif File created C:\Windows\twain_32.exe CriticalUpdate.exe File created C:\Windows\mshotfix.exe CriticalUpdate.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\svchost.exe CriticalUpdate.exe File created C:\Windows\mshotfix.exe jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File created C:\Windows\Main menu\Programs\StartUp\dwin32.exe jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\svchost.exe mshotfix.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\taskmon.pif mshotfix.exe File created C:\Windows\Main menu\Programs\StartUp\screensaver.scr mshotfix.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\svchost.exe registry.pif File created C:\Windows\Main menu\Programs\StartUp\dwin32.exe CriticalUpdate.exe File created C:\Windows\twain_32.exe mshotfix.exe File created C:\Windows\mshotfix.exe mshotfix.exe File created C:\Windows\Main menu\Programs\StartUp\dwin32.exe registry.pif File created C:\Windows\All Users\Main menu\Programs\StartUp\taskmon.pif CriticalUpdate.exe File created C:\Windows\All Users\Main menu\Programs\StartUp\svchost.exe jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe File created C:\Windows\Main menu\Programs\StartUp\screensaver.scr jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 8 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 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mshotfix.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CriticalUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language registry.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe - Modifies registry class 20 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ = "C:\\Windows\\SysWow64\\bhrw.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\ regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ = "C:\\Windows\\SysWow64\\bhrw.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ = "C:\\Windows\\SysWow64\\bhrw.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ = "C:\\Windows\\SysWow64\\bhrw.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40D20724-5D3A-43C8-9FF5-2B6F209DBD27}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1948 wrote to memory of 4492 1948 jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe 90 PID 4496 wrote to memory of 3924 4496 registry.pif 97 PID 4244 wrote to memory of 3480 4244 mshotfix.exe 98 PID 1620 wrote to memory of 5836 1620 CriticalUpdate.exe 99
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Delf.de.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Drivers directory
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Windows\system32\bhrw.dll"2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4492
-
-
C:\Windows\mshotfix.exe"C:\Windows\mshotfix.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Drivers directory
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Windows\system32\bhrw.dll"2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3480
-
-
\??\c:\registry.pifc:\registry.pif1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Drivers directory
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Windows\system32\bhrw.dll"2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3924
-
-
\??\c:\CriticalUpdate.exec:\CriticalUpdate.exe1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Drivers directory
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Windows\system32\bhrw.dll"2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:5836
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Browser Extensions
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\WINDOWS\SYSTEM32\DRIVERS\ETC\hosts
- Size 1KB
- SHA256 478f35833689c557fb4b36d01edc7fc779a760ee521ad65abb509bfe6707d9a6
- MD5 b2a9aa6886fa7b8e81cef3fac4582afa
- SHA1 7076eb406de42fd705a68139e68a9b63c84ee56e
- SHA512 056e30fa1cbb467ce8df9aae48fd3167b68ae3bb90675f52f4eab7e82366de76c86592d481d19c4b98a20cd4e907b952104e4a3c843266e024e2a4b7500fd71b
- TLSH T1C631C579621280CF21F6880464227BB7D426F46598C3FDE6B83CEFD837A6D5A228145A
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\SysWOW64\bhrw.dll
- Size 500KB
- SHA256 a50073c374f995e68a5e60d9fc3e7992b68a6cabaf41286e46971555902458df
- MD5 f30356c3f87e5adbb9483d9caf970cdb
- SHA1 d440afe47d532c95e9b43c0670b1aa647ca66a57
- SHA512 8695553d0a46fa5f265711077f2a96f16e8b0b8307694a379ebed25bf614f2cc0f043e27682bc09f497695876d1a3cad27bd29cb846518bbecc4de238826da4d
- SSDEEP 6144:dj6jtxZMRwoFBQ+tiDq/yw/iM6Yv+5RuR+JWoNghbYmb6KpgPRPnS1tgrul1TTQD:d2jtAR1Q+tdVoCembMSTgCllQzuSJb
- TLSH T1DEB47EB1F5D04437C2725B38AC6BA378E82A7D40A96C74867EE41E0D6F393D274292D7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\registry.pif
- Size 705KB
- SHA256 a91c0f017921ace32229b28a2ea739ab3eeba27ec3073554f7efac5783fce31a
- MD5 477d5b37977ced8b83589f2ea087429f
- SHA1 ed77621affd0937f4689bddb69c6f86c3e5def8b
- SHA512 ff95bb64c8a0cad95adec4927342df764caf283477e6b3937b83ab87126d2acbded5218fd1919645cdb9ced9187fc8ed10013cf3659ed41fc2fe056f4795116b
- SSDEEP 12288:wILGrN2jtAR1Q+tdVoCembMSTgCllQzuSJbF:LaraCR9tdVVRz9luzuSJh
- TLSH T1BBE45C61A1D04436F122CE3B9C6BEE64982AFF1C6B586C85FAE4DD0D5F392C174292D3
- MD5 SHA1 SHA512 SSDEEP TLSH