Overview

overview

10

Static

static

6b6fcd64e7...08.exe

windows7_x64

10

6b6fcd64e7...08.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    20/07/2020, 07:33

Sharing

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General

  • Target
    6b6fcd64e7392f852c4e460c7cca2b08.exe
  • Size 842KB
  • Sample200720-b4exmyql12
  • SHA256 0af72ca3fe6668a143d9fcb21ff59cc4629ee4e82feb79e9d566f19f0db77eb5
  • MD5 SHA1 SHA512
Score
10/10
ransomwareupxspywarestealermasslogger

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\480F96756F\Log.txt

  • masslogger

Ransom Note
  • <|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Persocon Processor 2.5+ GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/20/2020 7:33:17 AM MassLogger Started: 7/20/2020 7:33:14 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Downloader ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

  • Suspicious behavior: EnumeratesProcesses 2648 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • NTFS ADS 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of WriteProcessMemory 14 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    stealerspywaremasslogger
  • Drops startup file 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b6fcd64e7392f852c4e460c7cca2b08.exe
    "C:\Users\Admin\AppData\Local\Temp\6b6fcd64e7392f852c4e460c7cca2b08.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      • Drops startup file
      PID:2304
      • C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe
        "C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetThreadContext
        PID:3088
        • C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe
          "C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          • Suspicious behavior: AddClipboardFormatListener
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:3740
        • C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe
          "C:\Users\Admin\AppData\Roaming\appdata\jsdhdh.exe" 2 3740 60843
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Executes dropped EXE
          PID:3880

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3740-4-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/3740-8-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/3740-9-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/3740-11-0x0000000002370000-0x000000000240A000-memory.dmp
        Download

        memory/3740-12-0x0000000002422000-0x0000000002423000-memory.dmp
        Download