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Analysis

  • max time kernel
    164s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 00:15

General

  • Target

    21539bc29b75eba7f203c6dfbad6f111.exe

  • Size

    268KB

  • MD5

    21539bc29b75eba7f203c6dfbad6f111

  • SHA1

    ec7c4ffe8d1b749e721c749167bc89ec72776bfe

  • SHA256

    ff18bd17d818e81800acba7c65abef03e873d92aec882332468f4f66313b4804

  • SHA512

    32b0340174167cc77046e2a006038cb698595c805b2ea92cda32f2b7ec47e54e1ea1f8a1e67f50bc3e13fef69823f6bae7711da271ba6da874c07ee548582663

  • SSDEEP

    6144:CRPpbZRml8z94sYxeTfXys6zlbG95POPHQ7TlSqSeiD4/uhHCA4ydSZb0ng:KPpbZRi8z94da64RyHQ7TlUJ4/uLng

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 49 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21539bc29b75eba7f203c6dfbad6f111.exe
    "C:\Users\Admin\AppData\Local\Temp\21539bc29b75eba7f203c6dfbad6f111.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\raoxia.exe
      "C:\Users\Admin\raoxia.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\raoxia.exe

    Filesize

    268KB

    MD5

    f807f8eab314b5b31140c6b9bc1103ed

    SHA1

    7bf6aa04a5a787e87873a861c4d70c5372faf060

    SHA256

    8f4762478df14c9f9ed70a442de722276a8b07a440399481fa14edb67a5bfab0

    SHA512

    8cc89703cff12f3b93c102ade80d967cca4f88842ce1b2e9bcfc8f49473c81594caac6cca382f4efea630f6d269c8fe49db2ab1a89d0172c3e108c283a821b58