Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2022 06:41

General

  • Target

    wynwormi (1).js

  • Size

    6KB

  • MD5

    7edcf771a2b13ab36e1e785d750d2748

  • SHA1

    f5e52a0b4e4d8ea14d63f55a15996ecc5043e3b3

  • SHA256

    0eda80c7f56ee8ebbefcaebaf92f9bd4374249076cce2db1361b8292c7537ff2

  • SHA512

    7bb655b07088512dd721221924b4055c6891c58b3e66432b6744eff773d10d73d75229bee205820393fb557aa1e92648cfc9f777f8e1eb55067484cec0132625

  • SSDEEP

    192:3sIwVBBUBALLDz4kFFZAAb02nSOBzwk2sTRvBz7v/jvBD8WqkMjLRvBzwV:8IEBBaOFXZKgpQ2V

Malware Config

Extracted

Family

vjw0rm

C2

http://45.139.105.174:6605

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 1 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\wynwormi (1).js"
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:4824

Network

MITRE ATT&CK Enterprise v6

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Downloads