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Analysis
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max time kernel
119s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
16/07/2024, 01:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4c40a09c46a3ab61a81d9c33b9d8890a_JaffaCakes118.dll
Resource
win7-20240708-en
4 signatures
150 seconds
General
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Target
4c40a09c46a3ab61a81d9c33b9d8890a_JaffaCakes118.dll
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Size
151KB
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MD5
4c40a09c46a3ab61a81d9c33b9d8890a
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SHA1
7ab3b445d1cc829f74ea443af5c96073ec6f3b2b
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SHA256
50c4da11e27d08688032fb1ead438c3660ccc78075f5dc0a4716809c7b4db0a2
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SHA512
28b7d33e1f1fd57685dd50756f6adb998a30a7ec4dd9d9dc9bbd12085fc3b6056f574831c66dd96fa2dd055c2e6eb1997b08e8d851df0c28a2055cd7aacb51b9
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SSDEEP
3072:e61fBZZlujgqIhP/rVmdqLZaNfZ/VkF/kmp2ZI:XxBrlkg9P/JmdqefJVk3YZ
Malware Config
Signatures
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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\{0FD5AE0D-2452-411B-83F0-C8055D2CD715} regsvr32.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Internet Explorer\Main\Default = 0daed50f52241b4183f0c8055d2cd715 regsvr32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0FD5AE0D-2452-411B-83F0-C8055D2CD715}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0FD5AE0D-2452-411B-83F0-C8055D2CD715}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4c40a09c46a3ab61a81d9c33b9d8890a_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0FD5AE0D-2452-411B-83F0-C8055D2CD715}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0FD5AE0D-2452-411B-83F0-C8055D2CD715} regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30 PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30 PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30 PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30 PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30 PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30 PID 1300 wrote to memory of 1948 1300 regsvr32.exe 30
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\4c40a09c46a3ab61a81d9c33b9d8890a_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1300 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\4c40a09c46a3ab61a81d9c33b9d8890a_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:1948
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