Overview

overview

10

Static

static

A3D61C5167...80.exe

windows7_x64

10

A3D61C5167...80.exe

windows10_x64

10

Analysis

  • max time kernel
    139s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    02/08/2021, 04:46

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General

  • Target
    A3D61C51677550BCAB428E66D5AE3080.exe
  • Size 2.1MB
  • Sample210802-7cc9397dps
  • SHA256 ec2ff3ea783304168e8acdf7e60a3c4d97efa75bf922c10ee1b947d1b87a7cc2
  • MD5 SHA1 SHA512
Score
10/10
vjw0rmpersistencetrojanworm

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

    trojanwormvjw0rm
  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 1 IoCs
  • 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.

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\A3D61C51677550BCAB428E66D5AE3080.exe
    "C:\Users\Admin\AppData\Local\Temp\A3D61C51677550BCAB428E66D5AE3080.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4800
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\info.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3300
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn anydesk /tr "C:\Users\Admin\AppData\Roaming\info.js
        3⤵
        • Creates scheduled task(s)
        PID:1212
    • C:\Users\Admin\AppData\Local\Temp\setup.exe
      "C:\Users\Admin\AppData\Local\Temp\setup.exe"
      2⤵
      • Executes dropped EXE
      PID:3900
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3900 -s 592
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:636

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        memory/3900-121-0x000001F1CF430000-0x000001F1CF431000-memory.dmp
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