Analysis

  • max time kernel
    88s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    01-05-2022 23:23

General

  • Target

    5670b4d812cd81ee0fcfb393c62bb992e1b0a5feaa471910c4416ef28877c567.exe

  • Size

    725KB

  • MD5

    f8adfc9f81ce2af0951b7c98d90d266a

  • SHA1

    7d956f1ea408792d072b59cc4c3509445807cd9a

  • SHA256

    5670b4d812cd81ee0fcfb393c62bb992e1b0a5feaa471910c4416ef28877c567

  • SHA512

    e202eb75a89384d66738567ff049a11bb7aaccc9262c70771837f15d77f98c99b6f283a1aa23301f78eea9fce52d3749d740760bc14aad25e58fc6f4f6d993dd

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 6 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 35 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: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5670b4d812cd81ee0fcfb393c62bb992e1b0a5feaa471910c4416ef28877c567.exe
    "C:\Users\Admin\AppData\Local\Temp\5670b4d812cd81ee0fcfb393c62bb992e1b0a5feaa471910c4416ef28877c567.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Users\Admin\AppData\Local\Temp\5670b4d812cd81ee0fcfb393c62bb992e1b0a5feaa471910c4416ef28877c567.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:112
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\5670b4d812cd81ee0fcfb393c62bb992e1b0a5feaa471910c4416ef28877c567.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1248

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/112-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/112-64-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/112-56-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/112-57-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/112-59-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/112-60-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/112-68-0x00000000021D5000-0x00000000021E6000-memory.dmp

    Filesize

    68KB

  • memory/112-67-0x0000000076811000-0x0000000076813000-memory.dmp

    Filesize

    8KB

  • memory/112-66-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1040-54-0x0000000000950000-0x0000000000A0E000-memory.dmp

    Filesize

    760KB

  • memory/1040-55-0x0000000001FA0000-0x0000000002058000-memory.dmp

    Filesize

    736KB

  • memory/1248-71-0x000000006EFE0000-0x000000006F58B000-memory.dmp

    Filesize

    5.7MB