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Analysis

  • max time kernel
    170s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2024, 15:04

General

  • Target

    4e9e35e8f32b581013c3945412fc3626.exe

  • Size

    6KB

  • MD5

    4e9e35e8f32b581013c3945412fc3626

  • SHA1

    b9a0bd17a76780683511ef79437affec98f3dd90

  • SHA256

    1e825fa83b00fe31560196466ef8ea254fb8811078ba48cb1935db859a75f501

  • SHA512

    a9cc8727b61f763125508126a6aac60759ab1a0709b8095e4b35f2092e68ef4f77a5c2b9690b93b4f64026239ce21603edd3ed5759b101eab03b13f1e99e9849

  • SSDEEP

    192:QsPS0nd//EsbqdQvTIAEWA+a0uiZkTSyU7zp0nqI8TAAp:QVlsbeKT60hkH8wqjL

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e9e35e8f32b581013c3945412fc3626.exe
    "C:\Users\Admin\AppData\Local\Temp\4e9e35e8f32b581013c3945412fc3626.exe"
    1⤵
    • Checks computer location settings
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\stam.bat" "
      2⤵
        PID:3500

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\stam.bat

      Filesize

      222B

      MD5

      8790265568bc5cde415e544ece7c0c36

      SHA1

      b1715b8a3e1f9083bde223af264032c7e2cf2a9c

      SHA256

      8b47988c9800d48b12e34aeb94aecd41e667056899f2fa0085bf4c0097948503

      SHA512

      4246bd75b154d9cfd7890ee8c0fb6cc8f88f014f1e2786528a133a2f7fe96f94824bfa0c6af86a8162d012d3d0e5ec78d65528251a9c6a7a398b4266006e8cf4

    • memory/3028-0-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/3028-3-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB