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Analysis
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max time kernel
41s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
06/12/2022, 16:53
Static task
static1
Behavioral task
behavioral1
Sample
b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll
Resource
win10v2004-20221111-en
General
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Target
b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll
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Size
371KB
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MD5
2077537b5967eda36f52151a818673ff
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SHA1
5b3d2b2a7e5b391ba4ad5f1d98aef9551e618daf
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SHA256
b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91
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SHA512
056b3a68c7eadee90fcc10112793b8574b384322851a9d6c74d75312c37aa19701efa32703868653385fef79aea7c1c4783f75b94247720a6be7f80322792a44
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SSDEEP
6144:R+Ka7ZXdAcKlsdWxAL6n96vUsc2sXMb5TYLhB2dZ/Nd:Udd3Kls+9sUsZsyqLT2dZ
Malware Config
Signatures
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Internet Explorer\UrlSearchHooks regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\URLSearchHooks\{6DD5C517-9F56-4113-ADBE-94801329768C} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff\Clsid\ = "{6DD5C517-9F56-4113-ADBE-94801329768C}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\ProgID\ = "b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28 PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28 PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28 PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28 PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28 PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28 PID 1476 wrote to memory of 1792 1476 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll2⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:1792
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