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Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
23/06/2024, 23:48
Behavioral task
behavioral1
Sample
049e27dfd2b583e8ac25e8de3ac28498_JaffaCakes118.dll
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
049e27dfd2b583e8ac25e8de3ac28498_JaffaCakes118.dll
Resource
win10v2004-20240611-en
General
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Target
049e27dfd2b583e8ac25e8de3ac28498_JaffaCakes118.dll
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Size
189KB
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MD5
049e27dfd2b583e8ac25e8de3ac28498
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SHA1
430d33c1d91c141933cc720fa55258e432b6e4a0
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SHA256
d11022e0aa9793ba109f636ca11375dc304bb225508ce0dde72bd3147765b0de
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SHA512
29086fc5ce720c85ac066c2e3b4b53cd9f7df727993325216149628c1a30044c82b894876168e13608241601fa8fbc7b8295df0a4644d697175899f9cabb0af9
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SSDEEP
3072:roZeySYi97bbrMbvT0q8O1cZPzQ7IXMBc+AMP+QfQEhxFyVU7PUurCQEhxFyVU7E:rOAYidwvP6bQ7yMP+DE827s0CQE8274X
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 13 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\ = "loader_c 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\049e27dfd2b583e8ac25e8de3ac28498_JaffaCakes118.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28 PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28 PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28 PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28 PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28 PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28 PID 3040 wrote to memory of 2156 3040 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\049e27dfd2b583e8ac25e8de3ac28498_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\049e27dfd2b583e8ac25e8de3ac28498_JaffaCakes118.dll2⤵
- Writes to the Master Boot Record (MBR)
- Modifies registry class
PID:2156
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