Overview

overview

10

Static

static

a4e5aac24c...06.exe

windows7_x64

10

a4e5aac24c...06.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    102s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    18/07/2020, 08:51

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General

  • Target
    a4e5aac24c36ad5bcf0d935f07232006.exe
  • Size 917KB
  • Sample200718-dglbv75ccs
  • SHA256 3e24bc0f9fdba289c0ab90cd86709b32eb6903abc8f3843c07ca74d1af36a6a9
  • MD5 SHA1 SHA512
Score
10/10
ransomwareupxstealerspywaremasslogger

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\C8A579F880\Log.txt

  • masslogger

Ransom Note
  • <|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/18/2020 10:50:47 AM MassLogger Started: 7/18/2020 10:50:39 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> 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: AddClipboardFormatListener 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Looks up external IP address via web service 1 IoCs

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

  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Loads dropped DLL 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Suspicious behavior: EnumeratesProcesses 1351 IoCs
  • MassLogger

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

    stealerspywaremasslogger
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • UPX packed file 3 IoCs

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

    upx
  • NTFS ADS 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4e5aac24c36ad5bcf0d935f07232006.exe
    "C:\Users\Admin\AppData\Local\Temp\a4e5aac24c36ad5bcf0d935f07232006.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    PID:880
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      • NTFS ADS
      PID:1272
      • C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe
        "C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:1380
        • C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe
          "C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe"
          4⤵
          • Suspicious behavior: AddClipboardFormatListener
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1448
        • C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe
          "C:\Users\Admin\AppData\Roaming\appdata\ggsgjr.exe" 2 1448 100745
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1016

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1272-1-0x0000000000090000-0x0000000000091000-memory.dmp
        Download

        memory/1448-10-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/1448-12-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/1448-7-0x0000000000400000-0x0000000000541000-memory.dmp
        Download

        memory/1448-14-0x0000000000590000-0x000000000062A000-memory.dmp
        Download

        memory/1448-15-0x0000000002192000-0x0000000002193000-memory.dmp
        Download

        memory/1448-16-0x0000000000220000-0x00000000002B4000-memory.dmp
        Download