matanbuchus | e66c2a09074fa94390262c8b925988e7d9a085edcc97cad79e2ccc9c0e862567

Analysis

Target
auth.dll
Size 2.5MB
Sample220630-2ydfdsdff5
SHA256 e66c2a09074fa94390262c8b925988e7d9a085edcc97cad79e2ccc9c0e862567
MD5 64a2807bc1385ee99c892012ed0a62bf
SHA1 1d21c43b582ca6ad77714c05976fe5827f028bd0
SHA512 78352c8643206849726ff7240d9a80faedc76f9586943dd8cdb649ff62af658a849258783fec50157b5f7118a0442ab538a475886d44a2993b2aa7be1b5b46a1
MD5 SHA1 SHA512

Score

10^/10

Matanbuchus
A loader sold as MaaS first seen in February 2021.
loader matanbuchus

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28
PID 1380 wrote to memory of 1664	1380	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\auth.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\auth.dll
  2⤵
  PID:1664

memory/1380-54-0x000007FEFC5C1000-0x000007FEFC5C3000-memory.dmp

Download

memory/1664-56-0x0000000076C81000-0x0000000076C83000-memory.dmp

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memory/1664-57-0x0000000002320000-0x00000000024E7000-memory.dmp

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memory/1664-58-0x0000000000310000-0x000000000038B000-memory.dmp

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