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Analysis

  • max time kernel
    5s
  • max time network
    3s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2023, 01:52

General

  • Target

    Zoom_setup.msi

  • Size

    32.7MB

  • MD5

    f3178261bc52648d2913284719dba022

  • SHA1

    85cf38073f5f0240d27d263aaf197deeab260aee

  • SHA256

    1c3efcfd867dd83ade44cc660fb1ee04ff91bd78319f2d1dedca4f92c6725e72

  • SHA512

    409ab2ffdc1fae9207279156153656c38c6d310de31f56f3258746a86b15c20427f12dc54d55112dadb80b59a8395b7e01ee02ec9722b5e917b0f08a68ba7464

  • SSDEEP

    786432:Y2rJJ2FJD2I8LsuRNCc367YpDkXPWPzcik0/5Urn7OiBh:YsJJU2lB38yESkE5UDaiH

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Zoom_setup.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1404
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3928
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0671E24F26383D0DE3596F2380579A19 C
      2⤵
      • Loads dropped DLL
      PID:3484

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSIF3CB.tmp

    Filesize

    285KB

    MD5

    b77a2a2768b9cc78a71bbffb9812b978

    SHA1

    b70e27eb446fe1c3bc8ea03dabbee2739a782e04

    SHA256

    f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0

    SHA512

    a8b16bc60f8559c78c64ca9e85cd7fd704bba1f55b362465b7accef1bb853d1c9616995a35f972256c57fbe877ce880398ba1fbceaa658604883aa12dcbc4f57

  • C:\Users\Admin\AppData\Local\Temp\MSIF3CB.tmp

    Filesize

    285KB

    MD5

    b77a2a2768b9cc78a71bbffb9812b978

    SHA1

    b70e27eb446fe1c3bc8ea03dabbee2739a782e04

    SHA256

    f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0

    SHA512

    a8b16bc60f8559c78c64ca9e85cd7fd704bba1f55b362465b7accef1bb853d1c9616995a35f972256c57fbe877ce880398ba1fbceaa658604883aa12dcbc4f57

  • C:\Users\Admin\AppData\Local\Temp\MSIF9F6.tmp

    Filesize

    285KB

    MD5

    b77a2a2768b9cc78a71bbffb9812b978

    SHA1

    b70e27eb446fe1c3bc8ea03dabbee2739a782e04

    SHA256

    f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0

    SHA512

    a8b16bc60f8559c78c64ca9e85cd7fd704bba1f55b362465b7accef1bb853d1c9616995a35f972256c57fbe877ce880398ba1fbceaa658604883aa12dcbc4f57

  • C:\Users\Admin\AppData\Local\Temp\MSIF9F6.tmp

    Filesize

    285KB

    MD5

    b77a2a2768b9cc78a71bbffb9812b978

    SHA1

    b70e27eb446fe1c3bc8ea03dabbee2739a782e04

    SHA256

    f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0

    SHA512

    a8b16bc60f8559c78c64ca9e85cd7fd704bba1f55b362465b7accef1bb853d1c9616995a35f972256c57fbe877ce880398ba1fbceaa658604883aa12dcbc4f57