Overview

overview

10

Static

static

parcel_info-pdf.exe

windows7_x64

10

parcel_info-pdf.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21/05/2022, 03:39

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General

  • Target
    parcel_info-pdf.exe
  • Size 773KB
  • Sample220521-d76arscabr
  • SHA256 553ee875b3fc39e67daff6b7ace6590da149818f31bc7f84bc115858d10ab4f9
  • MD5 SHA1 SHA512
Score
10/10
massloggercollectionevasionransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\0F48153F20\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: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 5:24:25 AM MassLogger Started: 5/21/2022 5:24:22 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> 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

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger Main Payload 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
    collection
  • Looks up external IP address via web service 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EHrUflJwi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F85.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3464
    • C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\parcel_info-pdf.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3724

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        tmp3F85.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\tmp3F85.tmp
        • Size 1KB
        • SHA256 80a6309396c87c80f8559c73ddde9852228a65148f0da719d87a9a7ecfad6843
        • MD5 SHA1 SHA512
        Submit Download

        memory/2476-130-0x0000000000110000-0x00000000001D8000-memory.dmp
        Download

        memory/2476-131-0x0000000004C80000-0x0000000004D12000-memory.dmp
        Download

        memory/2476-132-0x0000000005300000-0x000000000539C000-memory.dmp
        Download

        memory/2476-133-0x0000000005A50000-0x0000000005FF4000-memory.dmp
        Download

        memory/2476-134-0x0000000000930000-0x0000000000996000-memory.dmp
        Download

        memory/3724-138-0x0000000000400000-0x000000000049A000-memory.dmp
        Download

        memory/3724-139-0x0000000006EE0000-0x0000000006EEA000-memory.dmp
        Download

        memory/3724-140-0x00000000081C0000-0x0000000008210000-memory.dmp
        Download