Analysis

  • max time kernel
    131s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23/08/2022, 01:56

General

  • Target

    cLAskPOVmATadexax2223.js

  • Size

    22KB

  • MD5

    4d13e3eb8679c9a8a1a95ee8c363e707

  • SHA1

    2762322525e6205038d8514deaab9bd24ac2a9e9

  • SHA256

    036046d5ad198798908412fb75cb37ddc9dba5bbf7397b397a7d75ab3e7f7956

  • SHA512

    5ee2bf606ecd1b9bfe646338bd083e2caaf9b681ebee84c158ec2c2711401dc23c4f34567bb56ae2708eabfe9c2d3f2b97a39b5b3a9b241774983cdd5738993b

Score
10/10

Malware Config

Extracted

Family

vjw0rm

C2

http://185.157.162.75:2223

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 1 IoCs
  • Drops startup file 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\cLAskPOVmATadexax2223.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\tekCJjaePX.js"
      2⤵
        PID:1900

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Roaming\tekCJjaePX.js

            Filesize

            6KB

            MD5

            03e3c601fbb227e986a13bd98d98493a

            SHA1

            fe2f78aa29c17ad88506ce667b493bc507fe1884

            SHA256

            6b641a01433c2ce557e6682bdc431f1558499520132336317c8ff6aed54614e0

            SHA512

            9ccfb7edeffdf67555a9475960c365dce0a99caa58ead2422354c5c201e0b7cc7fa22b2975b97cf75273be2bce2ce66013db4617d9cc29ca2a1d5fd1b20e0870

          • memory/1732-54-0x000007FEFB871000-0x000007FEFB873000-memory.dmp

            Filesize

            8KB