Analysis

  • max time kernel
    198s
  • max time network
    206s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2023 11:55

General

  • Target

    1c5f8bf708bacefd644c4462a30fec95.exe

  • Size

    192KB

  • MD5

    1c5f8bf708bacefd644c4462a30fec95

  • SHA1

    3fde36c690e4b3c62a6ee106afdcb97c8c39ac8f

  • SHA256

    29d3fee58324e89c3fcee9cac9fe9f31b01103ea23711eecda78eaa8c13a18b5

  • SHA512

    7ff7508899e5d0f24d435eca1e0e7977a001d876754e5f3adbb6a656a113bb1fedf4b19aefc05cb19e7d90310ec5c93f9a4cb60b44789869c2895ff311cb76f1

  • SSDEEP

    3072:YrZuCWv2JQcFBKBJy6apbuD2VMbj1hlUywqbo9hW:Y9BWvUFIJlapu2V21r/C8

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 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\1c5f8bf708bacefd644c4462a30fec95.exe
    "C:\Users\Admin\AppData\Local\Temp\1c5f8bf708bacefd644c4462a30fec95.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:3592
    • C:\Users\Admin\baulaf.exe
      "C:\Users\Admin\baulaf.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:440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\baulaf.exe

    Filesize

    192KB

    MD5

    73fd882402f849a5756653561c9337a6

    SHA1

    4e3ac481abe5b739dbb5cf0a7cc96720afbc8e27

    SHA256

    2fe20aff299d8e5ddf1f763ed180480575b3e2d95016fbccd831791e7c358660

    SHA512

    aab73b80f6a2e743605c713e5dac6a69415cf762695b0ee77ba8c49327d51334a40298f0ad36308487f8c006c223b2102f395c6de1d9f5d1b5cce91f3e13b5ad