Analysis
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max time kernel
161s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
07/01/2024, 13:01
Behavioral task
behavioral1
Sample
490dc6cf0c3d403ea90450c31c7affb8.dll
Resource
win7-20231129-en
3 signatures
150 seconds
General
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Target
490dc6cf0c3d403ea90450c31c7affb8.dll
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Size
7KB
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MD5
490dc6cf0c3d403ea90450c31c7affb8
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SHA1
de8787eb62e1202de016fa8494576b9566019fcd
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SHA256
e7398a9c9071e0ecfa546d02f44b8dcb40f121caa97b0d0d2fdf864434d48adb
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SHA512
db38303aea14dc6116800daf27eec9f93f0a749278c6e6420a38217770f980c3faefbbe03b6930e46c6149f73071d532d9d21968c86f16a212300dfabc548854
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SSDEEP
96:ocZOzKzc78mD7Un4oazGLq4VUaaEbLP+icP8ENM09JVruK0YyDLGqVF:occKQDD7poaGUazbb+VPVK05XHyDLDF
Malware Config
Signatures
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resource yara_rule behavioral2/memory/1056-0-0x0000000010000000-0x0000000010009000-memory.dmp upx -
Installs/modifies Browser Helper Object 2 TTPs 2 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\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6}\ regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\490dc6cf0c3d403ea90450c31c7affb8.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6}\www = "www" regsvr32.exe Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{0BD44AB1-76A7-4E05-92F4-4B065FE72BD6}\InprocServer32 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3368 wrote to memory of 1056 3368 regsvr32.exe 88 PID 3368 wrote to memory of 1056 3368 regsvr32.exe 88 PID 3368 wrote to memory of 1056 3368 regsvr32.exe 88
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\490dc6cf0c3d403ea90450c31c7affb8.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3368 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\490dc6cf0c3d403ea90450c31c7affb8.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1056
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