Analysis

  • max time kernel
    92s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-03-2024 23:24

General

  • Target

    MicrosoftWindowsServicesEtc/CallFunc.vbs

  • Size

    388B

  • MD5

    5f9737f03289963a6d7a71efab0813c4

  • SHA1

    ba22dfae8d365cbf8014a630f23f1d8574b5cf85

  • SHA256

    a767894a68ebc490cb5ab2b7b04dd12b7465553ce7ba7e41e1ea45f1eaef5275

  • SHA512

    5f4fb691e6da90e8e0872378a7b78cbd1acbf2bd75d19d65f17bf5b1cea95047d66b79fd1173703fcfef42cfc116ca629b9b37e355e44155e8f3b98f2d916a2a

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\MicrosoftWindowsServicesEtc\CallFunc.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Users\Admin\AppData\Local\Temp\MicrosoftWindowsServicesEtc\majorlist.exe
      "C:\Users\Admin\AppData\Local\Temp\MicrosoftWindowsServicesEtc\majorlist.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\system32\cmd.exe
        "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\1\3DC4.bat C:\Users\Admin\AppData\Local\Temp\MicrosoftWindowsServicesEtc\majorlist.exe"
        3⤵
          PID:3936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1\3DC4.bat

      Filesize

      116B

      MD5

      0db153eefb4d51d0f0b699ea1d97b98d

      SHA1

      abd0cc67716a9a3e6b0838638011d0594d329935

      SHA256

      f695721ea49576dc9b10b2d3c6ba89e8880b9a330b471e89800d014cb45de210

      SHA512

      057edee55b797b2349b8f59e89c819ad868d773f7f58a4b1c26aac5bb04f783708127cd18af51f074f838498a3e3d96d143ad285c2cc7e4e4ad5e6973d9a4a10