Analysis
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max time kernel
51s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
20-06-2024 07:27
Behavioral task
behavioral1
Sample
040573ffdd508aed60e2c3bfd98bc2f2_JaffaCakes118.dll
Resource
win7-20240611-en
3 signatures
150 seconds
General
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Target
040573ffdd508aed60e2c3bfd98bc2f2_JaffaCakes118.dll
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Size
8KB
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MD5
040573ffdd508aed60e2c3bfd98bc2f2
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SHA1
f5dd2b9d344710b124741a9b62ab3174b13a6a6f
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SHA256
28375bdfb1c61dd062610bb54e9f9db483b897c4f828930dc37f5ec29a21e3e0
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SHA512
0ef6547d74bbb16bed8aa0909fae93a640230ccd05fda42e64d274c4856d960bd48b6f4d632311ed432ae3e828eb6afd9adb9e6d270012ec8526a90cff0b54b0
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SSDEEP
192:QdjcISJiF3O9x6pQdVdrBezApIZUbZl3lvx:qcMHkj9AAyZcl1
Malware Config
Signatures
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Processes:
resource yara_rule behavioral2/memory/1780-0-0x0000000010000000-0x000000001000A000-memory.dmp upx -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25}\ regsvr32.exe -
Modifies registry class 5 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\040573ffdd508aed60e2c3bfd98bc2f2_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D46BEAA4-A304-40B3-A9DA-EC7F7F501F25}\ddd = "ddd" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid process target process PID 4008 wrote to memory of 1780 4008 regsvr32.exe regsvr32.exe PID 4008 wrote to memory of 1780 4008 regsvr32.exe regsvr32.exe PID 4008 wrote to memory of 1780 4008 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\040573ffdd508aed60e2c3bfd98bc2f2_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4008 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\040573ffdd508aed60e2c3bfd98bc2f2_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1780