Analysis

  • max time kernel
    71s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-04-2022 04:09

General

  • Target

    1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7.exe

  • Size

    1.1MB

  • MD5

    7830bfc8bd4c8808b5ec4a4aba750928

  • SHA1

    5877758e958176eb0aef8d3c09d541cb36ef2031

  • SHA256

    1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7

  • SHA512

    e07fdbec494b083cb8dad2b7f79497c4717fc7d3763d5480cf996c25923c81aeec83a192a6112e5bdd256a0aa095129cd9dd3c347910515a4d923999fdeb05bc

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 42 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 SetThreadContext 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 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\1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7.exe
    "C:\Users\Admin\AppData\Local\Temp\1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3660
    • C:\Users\Admin\AppData\Local\Temp\1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1976
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4736

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1865ca137e5325420288c092cd84605f0f90515340773264ebda18201e3603f7.exe.log

    Filesize

    1KB

    MD5

    6f8f3a9a57cb30e686d3355e656031e0

    SHA1

    acccd6befb1a2f40e662280bc5182e086a0d079b

    SHA256

    283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea

    SHA512

    8f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54

  • memory/1976-144-0x00000000055F3000-0x00000000055F5000-memory.dmp

    Filesize

    8KB

  • memory/1976-136-0x0000000000000000-mapping.dmp

  • memory/1976-137-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1976-139-0x0000000006900000-0x0000000006966000-memory.dmp

    Filesize

    408KB

  • memory/1976-141-0x0000000007260000-0x00000000072B0000-memory.dmp

    Filesize

    320KB

  • memory/3660-132-0x00000000056F0000-0x0000000005782000-memory.dmp

    Filesize

    584KB

  • memory/3660-133-0x0000000005680000-0x000000000568A000-memory.dmp

    Filesize

    40KB

  • memory/3660-134-0x00000000066E0000-0x0000000006C0C000-memory.dmp

    Filesize

    5.2MB

  • memory/3660-135-0x00000000071D0000-0x000000000726C000-memory.dmp

    Filesize

    624KB

  • memory/3660-131-0x0000000005C00000-0x00000000061A4000-memory.dmp

    Filesize

    5.6MB

  • memory/3660-130-0x0000000000BA0000-0x0000000000CCA000-memory.dmp

    Filesize

    1.2MB

  • memory/4736-156-0x0000000007C40000-0x0000000007C4E000-memory.dmp

    Filesize

    56KB

  • memory/4736-151-0x0000000006CA0000-0x0000000006CBE000-memory.dmp

    Filesize

    120KB

  • memory/4736-142-0x0000000002D40000-0x0000000002D76000-memory.dmp

    Filesize

    216KB

  • memory/4736-149-0x0000000006CC0000-0x0000000006CF2000-memory.dmp

    Filesize

    200KB

  • memory/4736-146-0x0000000005F30000-0x0000000005F96000-memory.dmp

    Filesize

    408KB

  • memory/4736-147-0x0000000006700000-0x000000000671E000-memory.dmp

    Filesize

    120KB

  • memory/4736-148-0x0000000002EF5000-0x0000000002EF7000-memory.dmp

    Filesize

    8KB

  • memory/4736-145-0x00000000057B0000-0x00000000057D2000-memory.dmp

    Filesize

    136KB

  • memory/4736-150-0x000000006FA80000-0x000000006FACC000-memory.dmp

    Filesize

    304KB

  • memory/4736-158-0x0000000007D30000-0x0000000007D38000-memory.dmp

    Filesize

    32KB

  • memory/4736-152-0x0000000008050000-0x00000000086CA000-memory.dmp

    Filesize

    6.5MB

  • memory/4736-153-0x0000000007A00000-0x0000000007A1A000-memory.dmp

    Filesize

    104KB

  • memory/4736-154-0x0000000007A70000-0x0000000007A7A000-memory.dmp

    Filesize

    40KB

  • memory/4736-155-0x0000000007C60000-0x0000000007CF6000-memory.dmp

    Filesize

    600KB

  • memory/4736-140-0x0000000000000000-mapping.dmp

  • memory/4736-157-0x0000000007D40000-0x0000000007D5A000-memory.dmp

    Filesize

    104KB

  • memory/4736-143-0x0000000005900000-0x0000000005F28000-memory.dmp

    Filesize

    6.2MB