Analysis

  • max time kernel
    4294180s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    14-04-2022 13:33

General

  • Target

    e177f99c7648be1a0a5ca7e0a172be95a17d076010d4d0c9518c70afe14bea45.exe

  • Size

    1.3MB

  • MD5

    391b89413b88a84c838eb8e2449a8e49

  • SHA1

    8187057f01e793b3b42fa32d94d7fca41980aa50

  • SHA256

    e177f99c7648be1a0a5ca7e0a172be95a17d076010d4d0c9518c70afe14bea45

  • SHA512

    ddb209207faed938bbcb6a1847b027405828bccc91b8479ac17cbb45066350e9d8d26670e854d7da275060141cbf0a77a8d6b656267877aeb2a33aef961f56bb

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 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 behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e177f99c7648be1a0a5ca7e0a172be95a17d076010d4d0c9518c70afe14bea45.exe
    "C:\Users\Admin\AppData\Local\Temp\e177f99c7648be1a0a5ca7e0a172be95a17d076010d4d0c9518c70afe14bea45.exe"
    1⤵
    • 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:1152
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e177f99c7648be1a0a5ca7e0a172be95a17d076010d4d0c9518c70afe14bea45.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1640

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1152-54-0x00000000001D0000-0x000000000032C000-memory.dmp

    Filesize

    1.4MB

  • memory/1152-55-0x0000000004910000-0x0000000004978000-memory.dmp

    Filesize

    416KB

  • memory/1152-56-0x0000000004E60000-0x0000000004EE6000-memory.dmp

    Filesize

    536KB

  • memory/1152-59-0x0000000004E25000-0x0000000004E36000-memory.dmp

    Filesize

    68KB

  • memory/1640-58-0x0000000076AC1000-0x0000000076AC3000-memory.dmp

    Filesize

    8KB

  • memory/1640-60-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1640-61-0x00000000025D0000-0x000000000321A000-memory.dmp

    Filesize

    12.3MB