Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/03/2024, 20:58

General

  • Target

    48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d.exe

  • Size

    257KB

  • MD5

    1da3c41b8f0a1a49b39b45b0e4f361cd

  • SHA1

    c89d0f754e7a552f4924e3295e569255a5206db2

  • SHA256

    48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d

  • SHA512

    38a444ccfaf7699a7367571795bf6a0d32a72a0b617751ba6af914e62d9088d766a6a05b6c7fb074d4e31ef354c715779e14cc2584d3b714e01896db6cdb7717

  • SSDEEP

    6144:F0tFwzWQx2+OMcppIRW30d+h8wZ2Uf/T11cradKtvr1K/fObT/bGipKgJJeZ4cAn:4FwtOMcppIRW3M+hwUf/Z1craduvr1Ka

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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 51 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\48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d.exe
    "C:\Users\Admin\AppData\Local\Temp\48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3924
    • C:\Users\Admin\wiajij.exe
      "C:\Users\Admin\wiajij.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:1172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\wiajij.exe

    Filesize

    257KB

    MD5

    fb9e8ebf77158358b8cb407b064097fa

    SHA1

    02023ae372e8f92c0f8690bd3dfef2dcec148e3b

    SHA256

    7734676944548c85ba7c1a8c683f9f30b58111b516c56691c5fd596cb8cf0c6c

    SHA512

    ad1903f37d765c5ddae75687df034a82940f4658f6917d98906637e795524ff5dddf9785541ae57047a4163c115f7f2b22e3a55694f27685253581dcc8d25e36