Overview

overview

10

Static

static

106a72ea42...8b.exe

windows7_x64

10

106a72ea42...8b.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    173s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18/04/2022, 12:40

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General

  • Target
    106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b.exe
  • Size 1.1MB
  • Sample220418-pwdbdsbaf2
  • SHA256 106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b
  • MD5 SHA1 SHA512
Score
10/10
massloggercollectionpersistencespywarestealer

Malware Config

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger Main Payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 3 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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 SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b.exe
    "C:\Users\Admin\AppData\Local\Temp\106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v winpro /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Documents\winpro.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v winpro /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Documents\winpro.exe"
        3⤵
        • Adds Run key to start application
        PID:4144
    • C:\Users\Admin\Documents\winpro.exe
      "C:\Users\Admin\Documents\winpro.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3668
      • C:\Users\Admin\Documents\winpro.exe
        "C:\Users\Admin\Documents\winpro.exe"
        3⤵
        • Executes dropped EXE
        • 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:2228

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        winpro.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\winpro.exe.log
        • Size 1KB
        • SHA256 de064c569a5f4edaf2da91d7bcb82bab06a35190b699cede1da0aa616a23d676
        • MD5 SHA1 SHA512
        Submit Download

        AgileDotNetRT.dll
        • Path C:\Users\Admin\AppData\Local\Temp\b35bc50e-fc56-4239-a7d0-bb79118b31c9\AgileDotNetRT.dll
        • Size 94KB
        • SHA256 fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        AgileDotNetRT.dll
        • Path C:\Users\Admin\AppData\Local\Temp\e34dd831-6d57-4d92-81ec-c008864dca6e\AgileDotNetRT.dll
        • Size 94KB
        • SHA256 fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        AgileDotNetRT.dll
        • Path C:\Users\Admin\AppData\Local\Temp\e34dd831-6d57-4d92-81ec-c008864dca6e\AgileDotNetRT.dll
        • Size 94KB
        • SHA256 fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        AgileDotNetRT.dll
        • Path C:\Users\Admin\AppData\Local\Temp\e34dd831-6d57-4d92-81ec-c008864dca6e\AgileDotNetRT.dll
        • Size 94KB
        • SHA256 fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        winpro.exe
        • Path C:\Users\Admin\Documents\winpro.exe
        • Size 1.1MB
        • SHA256 106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        winpro.exe
        • Path C:\Users\Admin\Documents\winpro.exe
        • Size 1.1MB
        • SHA256 106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        winpro.exe
        • Path C:\Users\Admin\Documents\winpro.exe
        • Size 1.1MB
        • SHA256 106a72ea42836e5d06b29fe9f93294b6a14c33ff31669089851666645b176c8b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/2228-145-0x0000000000400000-0x0000000000486000-memory.dmp
        Download

        memory/2228-149-0x0000000007190000-0x00000000071E0000-memory.dmp
        Download

        memory/2228-152-0x0000000002F03000-0x0000000002F05000-memory.dmp
        Download

        memory/2228-151-0x0000000007180000-0x000000000718A000-memory.dmp
        Download

        memory/2228-150-0x0000000007280000-0x000000000731C000-memory.dmp
        Download

        memory/2228-148-0x0000000006960000-0x00000000069C6000-memory.dmp
        Download

        memory/3668-142-0x0000000073620000-0x00000000736A9000-memory.dmp
        Download

        memory/4652-134-0x00000000058E0000-0x0000000005972000-memory.dmp
        Download

        memory/4652-132-0x0000000073620000-0x00000000736A9000-memory.dmp
        Download

        memory/4652-133-0x0000000005DF0000-0x0000000006394000-memory.dmp
        Download

        memory/4652-130-0x0000000000290000-0x00000000003A4000-memory.dmp
        Download