Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
23-06-2024 00:39
Behavioral task
behavioral1
Sample
049a341821a3d3233b8df15bbba375b8_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
049a341821a3d3233b8df15bbba375b8_JaffaCakes118.dll
Resource
win10v2004-20240611-en
General
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Target
049a341821a3d3233b8df15bbba375b8_JaffaCakes118.dll
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Size
180KB
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MD5
049a341821a3d3233b8df15bbba375b8
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SHA1
b2c9a993337610b68853235a34e9f65d025ce44e
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SHA256
5b89eb74f40416c4b58ef61a9b31abe4192356c258213015571998e83c7460de
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SHA512
17c665cf9f1184688173d9f64531f0c3f7d79708447629d2ded5b3a79ff22886ea40bb4df759e974047ebfa226eede6eba39ca370976a5d747d9c868aeaff606
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SSDEEP
3072:AdCqGZWIwA1fKqOiRbXrWn3bbrMbvT0q8O1cZPzQ7IXMBc+AMP+QfQEhxFyVU7D5:aIZW613ynLwvP6bQ7yMP+DE827Dgc
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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL\AppID = "{D103EBF9-6DD5-4715-863A-00AA27C7935A}" 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\0\win32 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\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\ = "loader 1.0 Type Library" 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" 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\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\049a341821a3d3233b8df15bbba375b8_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1924 1740 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\049a341821a3d3233b8df15bbba375b8_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\049a341821a3d3233b8df15bbba375b8_JaffaCakes118.dll2⤵
- Writes to the Master Boot Record (MBR)
- Modifies registry class
PID:1924
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