Analysis
- max time kernel
93s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system - submitted
16/04/2024, 01:09
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f257224d3726f4136475bc8c20892804_JaffaCakes118.dll
Resource
win7-20240220-en
3 signatures
150 seconds
General
- Target f257224d3726f4136475bc8c20892804_JaffaCakes118.dll
- Size 608KB
- Sample240416-bhsbhadd39
- SHA256 1702dbfb9d5460be67013b9dd85de2306b123b3f1a80bbcbf903ecf745c24fcc
- MD5 f257224d3726f4136475bc8c20892804
- SHA1 69fefb843c791c9bb9ba03cb62323af144d06f40
- SHA512 535fbee0d7c1326e17efc94d19b2dda02f0a13ec4cade4e15334af7e9aa013e9055875a870d936fc9d58ec1660ddd0fdbe8cd65a7e3deb6b02eee48aa4adf65e
- SSDEEP 12288:epIt9HX65cspWkY5DARyLuaIg3QaoArdnsQb0W/:eetFXsoB7LGnaoArNb0W
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 1 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\{CC01FC6C-C2A4-4147-369B-18823888CE33} regsvr32.exe - Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33}\ = "iwc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f257224d3726f4136475bc8c20892804_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f257224d3726f4136475bc8c20892804_JaffaCakes118.iwc\Clsid\ = "{CC01FC6C-C2A4-4147-369B-18823888CE33}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f257224d3726f4136475bc8c20892804_JaffaCakes118.iwc regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f257224d3726f4136475bc8c20892804_JaffaCakes118.iwc\ = "iwc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f257224d3726f4136475bc8c20892804_JaffaCakes118.iwc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C2A4-4147-369B-18823888CE33}\ProgID\ = "f257224d3726f4136475bc8c20892804_JaffaCakes118.iwc" regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4604 wrote to memory of 592 4604 regsvr32.exe 86 PID 4604 wrote to memory of 592 4604 regsvr32.exe 86 PID 4604 wrote to memory of 592 4604 regsvr32.exe 86
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f257224d3726f4136475bc8c20892804_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4604 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f257224d3726f4136475bc8c20892804_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:592
-