Analysis

  • max time kernel
    4294180s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    26-03-2022 02:47

General

  • Target

    827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.exe

  • Size

    821KB

  • MD5

    9b5980d4c58ba4d01a977e2b971f132d

  • SHA1

    35b68f76bfcd55b845092448e5e02d246e8f1376

  • SHA256

    827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba

  • SHA512

    6dc5a02865a563035a07bfb178db224a0c60aeb144da6f3c230f097114c91b67b3ba5ac5f4a9ba7a5672f5ef59c37f3c5c737160c5c058310e68feb2cf8d93a2

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.

  • 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.exe
    "C:\Users\Admin\AppData\Local\Temp\827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:284
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\9d77f4a40ffa452f8c1e2fdd2b545943.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\9d77f4a40ffa452f8c1e2fdd2b545943.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1988
    • C:\Users\Admin\AppData\Local\Temp\827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.exe
      "C:\Users\Admin\AppData\Local\Temp\827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.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:1992
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1480
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\827e8e185e6dbd858403ee9230186e8c9ac081508e1eaa6a3e0b4c87b1c925ba.exe'
        3⤵
        • Deletes itself
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:912

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/284-54-0x0000000075471000-0x0000000075473000-memory.dmp

    Filesize

    8KB

  • memory/912-71-0x000000006EEF0000-0x000000006F49B000-memory.dmp

    Filesize

    5.7MB

  • memory/912-72-0x0000000002510000-0x000000000315A000-memory.dmp

    Filesize

    12.3MB

  • memory/1480-66-0x000000006EEF0000-0x000000006F49B000-memory.dmp

    Filesize

    5.7MB

  • memory/1480-67-0x0000000002350000-0x0000000002F9A000-memory.dmp

    Filesize

    12.3MB

  • memory/1992-60-0x0000000004880000-0x000000000490C000-memory.dmp

    Filesize

    560KB

  • memory/1992-63-0x00000000011F0000-0x000000000122E000-memory.dmp

    Filesize

    248KB

  • memory/1992-64-0x0000000005DF0000-0x0000000005E80000-memory.dmp

    Filesize

    576KB

  • memory/1992-65-0x0000000004989000-0x000000000499A000-memory.dmp

    Filesize

    68KB