Analysis
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max time kernel
135s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
22-06-2024 11:48
Behavioral task
behavioral1
Sample
01fea2a5165cc79598d4f23981c5bb9e_JaffaCakes118.dll
Resource
win7-20240611-en
2 signatures
150 seconds
General
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Target
01fea2a5165cc79598d4f23981c5bb9e_JaffaCakes118.dll
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Size
35KB
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MD5
01fea2a5165cc79598d4f23981c5bb9e
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SHA1
a91d98092cfe3b6a92e52f8793cd3c2329d720d4
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SHA256
758da45258aac2c53ea04f4653650fc7592cf475929d8bf24766d47f3db03c0c
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SHA512
643f412b7025871a5c635ecfe0c0b0a5bbd153c6aaccde5fc2aa149799a4f2d2d7eee05837f6778a355b89b8eac5f8062f7510125e63f59cbd85452d0559ebfd
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SSDEEP
768:QzgVAB7rcsh1nVNhJLeh6plqhH1umL2z1kED93zv:Mg67rv7jhlekzqhHW1kED9Dv
Malware Config
Signatures
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resource yara_rule behavioral2/memory/1928-0-0x0000000010000000-0x000000001001A000-memory.dmp upx -
Installs/modifies Browser Helper Object 2 TTPs 2 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\{DF5EF25D-0873-7308-B63D-57D18AA79959} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{DF5EF25D-0873-7308-B63D-57D18AA79959}\ = "Windows Media" regsvr32.exe -
Modifies registry class 50 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01FEA2~1.DLL" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\ = "windowsmedia Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\ = "windowsmedia 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ = "IIECatch" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\ = "{5473378F-410E-401B-AAB3-A196DF144470}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01fea2a5165cc79598d4f23981c5bb9e_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01fea2a5165cc79598d4f23981c5bb9e_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ = "IIECatch" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\ = "windowsmedia Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CLSID\ = "{DF5EF25D-0873-7308-B63D-57D18AA79959}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\ProgID\ = "windowsmedia.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\CLSID\ = "{DF5EF25D-0873-7308-B63D-57D18AA79959}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\ = "{5473378F-410E-401B-AAB3-A196DF144470}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\TypeLib\ = "{5473378F-410E-401b-AAB3-A196DF144470}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CurVer\ = "windowsmedia.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\ = "windowsmedia Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\ = "Microsoft(R) Windows Media Player" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\VersionIndependentProgID\ = "windowsmedia" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0873-7308-B63D-57D18AA79959}\Version\ = "1.0" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1928 regsvr32.exe 1928 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 324 wrote to memory of 1928 324 regsvr32.exe 90 PID 324 wrote to memory of 1928 324 regsvr32.exe 90 PID 324 wrote to memory of 1928 324 regsvr32.exe 90
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\01fea2a5165cc79598d4f23981c5bb9e_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:324 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\01fea2a5165cc79598d4f23981c5bb9e_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:1928
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1300,i,17325488789339133686,9539570259395798500,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:81⤵PID:4864