Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
23-06-2024 00:17
Behavioral task
behavioral1
Sample
048b3798459f20a12f3984541905ce94_JaffaCakes118.dll
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
048b3798459f20a12f3984541905ce94_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
048b3798459f20a12f3984541905ce94_JaffaCakes118.dll
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Size
182KB
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MD5
048b3798459f20a12f3984541905ce94
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SHA1
d08aaeeb5a5413ffc12daff3f282e687273e804f
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SHA256
17ac68d493bfea94dd6f89aa0cde070ee1494c50403a7b51653ffc5e8bc82b68
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SHA512
43f9641a5d3255dfe1604a56c583be1ab18dad5b49f601ccd20fd9de8e1446c70250cee05945305d69b1378801d541ea644e4d2024f52c223cd81a8ab3e8ab68
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SSDEEP
3072:Q4a+9niEGl3JGbBSW6BrWn3VbbrMbvT0q8O1cZPzQ7IXMBc+AMP+QfQEhxFyVU7Z:QMUEm3iBSKn3VwvP6bQ7yMP+DE827kV0
Malware Config
Signatures
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 regsvr32.exe -
Modifies registry class 17 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A}\ = "loader" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\ = "loader 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL\AppID = "{D103EBF9-6DD5-4715-863A-00AA27C7935A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\048b3798459f20a12f3984541905ce94_JaffaCakes118.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 756 wrote to memory of 1676 756 regsvr32.exe 28 PID 756 wrote to memory of 1676 756 regsvr32.exe 28 PID 756 wrote to memory of 1676 756 regsvr32.exe 28 PID 756 wrote to memory of 1676 756 regsvr32.exe 28 PID 756 wrote to memory of 1676 756 regsvr32.exe 28 PID 756 wrote to memory of 1676 756 regsvr32.exe 28 PID 756 wrote to memory of 1676 756 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\048b3798459f20a12f3984541905ce94_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\048b3798459f20a12f3984541905ce94_JaffaCakes118.dll2⤵
- Writes to the Master Boot Record (MBR)
- Modifies registry class
PID:1676
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