Overview

overview

10

Static

static

1

81a0010758...118.js

windows7-x64

10

81a0010758...118.js

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/04/2024, 02:53

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General

  • Target

    81a0010758bb3da2796a7506bfd4aab3_JaffaCakes118.js

  • Size

    22KB

  • MD5

    81a0010758bb3da2796a7506bfd4aab3

  • SHA1

    ffc61c27e1a58878878e7b2b44c97ec23c0e09d2

  • SHA256

    3f82447c548d6d623ddc3f9965363df07f52cdf8eda955c55332196ee409e4c6

  • SHA512

    9521ed85e7a83eb890f706add3da9c29d29bd5c5b4a535541df9eb4072f4944fff34643289955ddf37be16f3cf815a8f77392cc656c0bb85506211ec28680779

  • SSDEEP

    384:hPm3uw3AWOAAc5zdEXinFZpPVGfIwwOLPkOxvNVivyJ0h/D5He8hfB31rFa3N7D:h+lwW7xJZptGfLPlvNe5HeaBfa97D

Score
10/10
vjw0rmpersistencetrojanworm

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

    trojanwormvjw0rm
  • 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.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\81a0010758bb3da2796a7506bfd4aab3_JaffaCakes118.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3552
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\dkzxEsqUMq.js"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      PID:2936

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\dkzxEsqUMq.js
          Filesize

          8KB

          MD5

          518e6b1ff0aa8ceb28ec463e15dbe880

          SHA1

          7ec70e887b02f1fe669c7611324e24f3869aee55

          SHA256

          f65e6b154131aed1c0d1a380a85b77829f57243e659a1eeffc67efd2b5640704

          SHA512

          30048b1575e91bb92b432989ab7d3ec18844fc43c5549f828d93c3250aae429fd238f8daf2c45605363a5a38b7b31403e574c442b64c44e470df10deb876d3e6

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