Analysis

  • max time kernel
    105s
  • max time network
    100s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-04-2022 02:14

General

  • Target

    6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d.exe

  • Size

    886KB

  • MD5

    af3e67d0dd587624470d4fcf81955f8f

  • SHA1

    829f8e110291da33cc98cb64e037bb74743c7bde

  • SHA256

    6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d

  • SHA512

    b48c8d205c73d8bfb120d9b3e5d9b31c9215b70bc295da35451b20ba60b2cafaf1bad56dd99d2fddfa9195506dbf6ef15adfba135fa13dd1cdbaadc766c88431

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.

  • Deletes itself 1 IoCs
  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d.exe
    "C:\Users\Admin\AppData\Local\Temp\6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Local\Temp\6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d.exe
      "C:\Users\Admin\AppData\Local\Temp\6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d.exe"
      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:1608
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\6f1276174813e960a88fc24b008d1263b87ef1a6165e8f54883536ae389d736d.exe'
        3⤵
        • Deletes itself
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1172-54-0x00000000011B0000-0x0000000001294000-memory.dmp

    Filesize

    912KB

  • memory/1172-55-0x0000000076191000-0x0000000076193000-memory.dmp

    Filesize

    8KB

  • memory/1172-56-0x00000000004C0000-0x00000000004D0000-memory.dmp

    Filesize

    64KB

  • memory/1172-57-0x0000000005560000-0x0000000005620000-memory.dmp

    Filesize

    768KB

  • memory/1172-58-0x00000000050C0000-0x0000000005148000-memory.dmp

    Filesize

    544KB

  • memory/1568-74-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB

  • memory/1568-72-0x0000000000000000-mapping.dmp

  • memory/1608-63-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1608-62-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1608-64-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1608-65-0x0000000000481B9E-mapping.dmp

  • memory/1608-67-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1608-69-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1608-71-0x0000000001125000-0x0000000001136000-memory.dmp

    Filesize

    68KB

  • memory/1608-60-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1608-59-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB