Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21-03-2024 15:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
dbf317eda108b90053692a6d7f779512.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
dbf317eda108b90053692a6d7f779512.dll
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Size
566KB
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MD5
dbf317eda108b90053692a6d7f779512
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SHA1
46192dfbe6499726fbbe34d096c125f614248a91
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SHA256
4c6e9d9bf3ab56b73eacd42f5625026170a920ad9fe901bc2b0fb78dd9eb9ff6
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SHA512
343c344d03cb335f26a89d3e58d44d59b66039eeaba54586b597dc08234e0717a095ee72dcbe374f56ce2b1d08d86d8cf655ae21c38dffceeed892d15e09543f
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SSDEEP
12288:LyA1ZdqVfv/6HftOIA3+00wstpSdCi3TLdrvizzKLrBVBwY:/1fqZCHwIr00taCiHR6z+vB
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\{CC01FC6C-8889-8BA1-783E-B9968247245E} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E}\ = "xx" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dbf317eda108b90053692a6d7f779512.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbf317eda108b90053692a6d7f779512.xx regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbf317eda108b90053692a6d7f779512.xx\ = "xx" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E}\ProgID\ = "dbf317eda108b90053692a6d7f779512.xx" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbf317eda108b90053692a6d7f779512.xx\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbf317eda108b90053692a6d7f779512.xx\Clsid\ = "{CC01FC6C-8889-8BA1-783E-B9968247245E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-8889-8BA1-783E-B9968247245E}\ProgID regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbf317eda108b90053692a6d7f779512.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dbf317eda108b90053692a6d7f779512.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2068
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