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Analysis
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max time kernel
140s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
18/09/2023, 09:45
Static task
static1
Behavioral task
behavioral1
Sample
d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a.dll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a.dll
Resource
win10v2004-20230915-en
General
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Target
d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a.dll
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Size
847KB
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MD5
f4180b43bd53c35dad24364c98028916
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SHA1
a9023b1e19eb1f303cd7337db3a44a140b0b4226
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SHA256
d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a
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SHA512
0f6c044c9fd24a023a7b25240c54305e924302bd1a4205e93b153c26096ef694310e6f79e8992c83e0aa8d9a824de9e56ca25cc234f75667dd131c675f1fc3e8
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SSDEEP
24576:vgXYaFro7oEIMJk+8R8uX+ob2NrqH1vcO:ooIMJk+8Rfuob2NrqHaO
Malware Config
Signatures
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Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3F4CDED-B1E9-41EE-9CA6-7B4D0DE6CB0A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3F4CDED-B1E9-41EE-9CA6-7B4D0DE6CB0A}\ = "Weasel" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3F4CDED-B1E9-41EE-9CA6-7B4D0DE6CB0A}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3F4CDED-B1E9-41EE-9CA6-7B4D0DE6CB0A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3F4CDED-B1E9-41EE-9CA6-7B4D0DE6CB0A}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1488 wrote to memory of 436 1488 regsvr32.exe 80 PID 1488 wrote to memory of 436 1488 regsvr32.exe 80 PID 1488 wrote to memory of 436 1488 regsvr32.exe 80
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1488 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\d5b786f96b0c7736f51011c854a9c463c6a3d1aa59c8bbab0667910fee51036a.dll2⤵
- Modifies registry class
PID:436
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