Overview

overview

10

Static

static

f174abf25a...ee.exe

windows7_x64

10

f174abf25a...ee.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    21/07/2020, 07:06

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General

  • Target
    f174abf25aa8d3485cc545c5e3f4c0ee.exe
  • Size 980KB
  • Sample200721-jvm1xb7van
  • SHA256 b6425efa950d3d45e01f94cf2ea732148a6454a9ebd8b253d18e6f08ebc724e8
  • 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: 7/21/2020 7:06:20 AM MassLogger Started: 7/21/2020 7:06:17 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.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 2682 IoCs
  • Executes dropped EXE 3 IoCs
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f174abf25aa8d3485cc545c5e3f4c0ee.exe
    "C:\Users\Admin\AppData\Local\Temp\f174abf25aa8d3485cc545c5e3f4c0ee.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      • NTFS ADS
      PID:4024
      • C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.exe
        "C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetThreadContext
        PID:744
        • C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.exe
          "C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of SetWindowsHookEx
          PID:776
        • C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.exe
          "C:\Users\Admin\AppData\Roaming\appdata\sjsjnfjgk.exe" 2 776 61062
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Executes dropped EXE
          PID:500

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/776-4-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/776-8-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/776-9-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/776-11-0x00000000023D0000-0x000000000246A000-memory.dmp
        Download

        memory/776-12-0x0000000002282000-0x0000000002283000-memory.dmp
        Download