Overview

overview

10

Static

static

eReceipt.js

windows7_x64

10

eReceipt.js

windows10-2004_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    09/07/2022, 06:41

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    eReceipt.js
  • Size 29KB
  • Sample220709-hf58xafba7
  • SHA256 0a3a6ef611952fbe870b4697a0cb4775a619a4b4599623cf295d6b787d6d43a5
  • MD5 SHA1 SHA512
Score
10/10
vjw0rmpersistencetrojanworm

Malware Config

Extracted

Family

  • vjw0rm

C2

  • http://zeegod.duckdns.org:9004

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

    trojanwormvjw0rm
  • Blocklisted process makes network request 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\eReceipt.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\EoqWadtefP.js"
      2⤵
        PID:3276
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\eReceipt.js
        2⤵
        • Creates scheduled task(s)
        PID:5076

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          EoqWadtefP.js
          • Path C:\Users\Admin\AppData\Roaming\EoqWadtefP.js
          • Size 8KB
          • SHA256 3c3df3cf093e39d0b670b975c61f8c4be41d7362fa488ad8627b40c09a02d3d0
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download