Analysis
- max time kernel
51s - max time network
51s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
20/06/2024, 12:04
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll
Resource
win7-20240508-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll
Resource
win10v2004-20240508-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll
- Size 280KB
- Sample240620-n8ty8swerf
- SHA256 c74149e64e9f65d5eb66ff14361c03f24489ce46632713b1f292a191e550a9e7
- MD5 05d23c63e000ab18fa8619dc06471950
- SHA1 c84a1ed78950dfbcdd286d6c454352bf4bd98129
- SHA512 677e6f4d777fabac90a81f69afb9509656269eac6d528e04399f445a66a9275cd3405c11ce9270c72da2fba9b146aa64d1df44d4d8e6645edc2ee2ff1f9138b5
- SSDEEP 3072:54+GrO1PAtorn5qU8B2xApPWKMpsJRnSfKhg80/vwahq0RKnLtWdVWXQDDk1N:+XrOWs5TkuK9n2Ki80wa5wnwXRc
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Adds policy Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1 = "C:\\Windows\\SYSTEM32\\winhelp32.exe" regsvr32.exe - Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- Impair Defenses: Safe Mode Boot 1 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\VIDEO regsvr32.exe - Adds Run key to start application 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Help Service = "C:\\Windows\\SYSTEM32\\winhelp32.exe" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows Help Service = "C:\\Windows\\SYSTEM32\\winhelp32.exe" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Help Service = "C:\\Windows\\SYSTEM32\\winhelp32.exe" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Windows Help Service = "C:\\Windows\\SYSTEM32\\winhelp32.exe" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServicesOnce\Windows Help Service = "C:\\Windows\\SYSTEM32\\winhelp32.exe" regsvr32.exe - Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\ = "myiebho" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD} regsvr32.exe - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\webmin\vmmreg32.bkp regsvr32.exe File created C:\Windows\SysWOW64\drvhive.ocx regsvr32.exe - Modifies registry class 52 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A7DD26FD-C8E3-4FC3-EFC1-A22A105C1407} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho.1\CLSID\ = "{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho\ = "Windows Update Monitor bar" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\AppID = "{A7DD26FD-C8E3-4FC3-EFC1-A22A105C1407}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\TypeLib\ = "{E1451945-AE2E-C356-B18F-6FDD0B100081}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\vmmreg32.DLL regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\ProgID\ = "MSS.bar.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\VersionIndependentProgID\ = "MSS.bar" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\ = "Windows Update Monitor 2.1 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho.1\ = "Windows Update Monitor bar" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho\CurVer\ = "MSS.bar.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\ = "Imyiebho" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\TypeLib\ = "{E1451945-AE2E-C356-B18F-6FDD0B100081}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A7DD26FD-C8E3-4FC3-EFC1-A22A105C1407}\ = "IEBHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\vmmreg32.DLL\AppID = "{A7DD26FD-C8E3-4FC3-EFC1-A22A105C1407}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\ = "Windows Update Monitor bar" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\ = "Imyiebho" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\TypeLib regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEBHO.myiebho\CLSID\ = "{7C6E1044-DBF1-EDB3-57BB-D40A130EA5BD}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{403538F6-2E9B-8125-6803-A744610BC3AC}\TypeLib\ = "{E1451945-AE2E-C356-B18F-6FDD0B100081}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E1451945-AE2E-C356-B18F-6FDD0B100081}\1.0\FLAGS\ = "0" regsvr32.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 668 Process not Found - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeBackupPrivilege 604 regsvr32.exe Token: SeRestorePrivilege 604 regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1944 wrote to memory of 604 1944 regsvr32.exe 82 PID 1944 wrote to memory of 604 1944 regsvr32.exe 82 PID 1944 wrote to memory of 604 1944 regsvr32.exe 82
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\05d23c63e000ab18fa8619dc06471950_JaffaCakes118.dll2⤵
- Adds policy Run key to start application
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:604
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Browser Extensions
1Event Triggered Execution
1AppInit DLLs
1