Analysis

  • max time kernel
    105s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250610-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/07/2025, 18:13

General

  • Target

    LegacyUpdate.dll

  • Size

    295KB

  • MD5

    a16b3a0f15a907da1a868b8e9842f1a4

  • SHA1

    afd21759cfd0f68b765f3cd9365280094c8a618e

  • SHA256

    9eb6498716330a0e1019316fc21261e1e81ccd319ed1a9c8d2555ecaeb0229ec

  • SHA512

    f95a1b2ffabf3795a1b77eb67506603d213391efc04ec4a1592f24af4297777763518bb9c0c7e4be975591125cec587e33e48ec39f2c2fd641abd33a83687015

  • SSDEEP

    6144:YjuBxS2+s6QHNQ1uM7PqD9cHzJAoLqmZkEA4IACvkldwr7+xMT0Jaj0aeru:YuxS2R6QC1uM7PqD9cHUj0Xy

Score
3/10

Malware Config

Signatures

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\LegacyUpdate.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\LegacyUpdate.dll
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:5596

Network

        MITRE ATT&CK Enterprise v16

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        Downloads