Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 22:25

General

  • Target

    176ba22675dfb1ab3df5c05a00ef9bbec6c21f96a5495744de74cb7958fb6d12.exe

  • Size

    160KB

  • MD5

    05446a4c2405cf7856514c81c62ec2df

  • SHA1

    155015f830da87d90df2609f4a3b5e1ab2a32612

  • SHA256

    176ba22675dfb1ab3df5c05a00ef9bbec6c21f96a5495744de74cb7958fb6d12

  • SHA512

    6e75f6649aa867e5a474c33894b3f24270c11218100bacded33a4fe4686d66773baafe8c9823465d7a4e14ffab0853f5fbf5fb7456851d64a79f01ffcd58a914

  • SSDEEP

    1536:1L1Q85upNKAoQqI6vmJgGMct4V0TtnYmy1DZeKJe:1kNaU6vh64VunBy11e

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\176ba22675dfb1ab3df5c05a00ef9bbec6c21f96a5495744de74cb7958fb6d12.exe
    "C:\Users\Admin\AppData\Local\Temp\176ba22675dfb1ab3df5c05a00ef9bbec6c21f96a5495744de74cb7958fb6d12.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\toiayam.exe
      "C:\Users\Admin\toiayam.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\toiayam.exe

    Filesize

    160KB

    MD5

    eb6a61f73b6fcbe3d943ee52f30a80b7

    SHA1

    4d7ac3e4c574047e9d34b444cdfdc259637fefa5

    SHA256

    a1c3a2d8d48c1b94a53e02e82c88de8751f8c6e6466e84c10474afccc1899deb

    SHA512

    bca39e5d59015ceffb4d3ff0db03a4d02e71146f7325d0c1471c9429221a5d232627431585f77adc35ea373d1e1029cb3fff0e702ec026f127ab627dcce18efb