Analysis

  • max time kernel
    60s
  • max time network
    111s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01/12/2020, 14:19

General

  • Target

    PURCHASE.exe

  • Size

    1.0MB

  • MD5

    9d1cdf69f551af40c1a7751c978cf097

  • SHA1

    bb7e5cd610da1dfe8004ef3bbca45013b502f7bf

  • SHA256

    01b712edb711a5ff50c21720fbca31081e9e376b4abd410f235d6d0e0d043726

  • SHA512

    d88ff5f569071d96589793fc4b693e158fef351f553a5cd189ac10c295b0df9636cce6d3e41d0b70dc318fe86c65e6983f94c861b9e177d06b83cea9341f1e0c

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 4 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.

  • 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sWiACXUvRplzzN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC11D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1072
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
      "{path}"
      2⤵
        PID:632
      • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
        "{path}"
        2⤵
          PID:1484
        • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
          "{path}"
          2⤵
            PID:112
          • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
            "{path}"
            2⤵
              PID:572
            • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
              "{path}"
              2⤵
              • Checks computer location settings
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:880
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe'
                3⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:900

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/880-9-0x0000000000400000-0x0000000000486000-memory.dmp

            Filesize

            536KB

          • memory/880-13-0x0000000073470000-0x0000000073B5E000-memory.dmp

            Filesize

            6.9MB

          • memory/880-11-0x0000000000400000-0x0000000000486000-memory.dmp

            Filesize

            536KB

          • memory/880-12-0x0000000000400000-0x0000000000486000-memory.dmp

            Filesize

            536KB

          • memory/900-17-0x0000000073470000-0x0000000073B5E000-memory.dmp

            Filesize

            6.9MB

          • memory/900-20-0x0000000002580000-0x0000000002581000-memory.dmp

            Filesize

            4KB

          • memory/900-53-0x0000000006310000-0x0000000006311000-memory.dmp

            Filesize

            4KB

          • memory/900-52-0x0000000006300000-0x0000000006301000-memory.dmp

            Filesize

            4KB

          • memory/900-38-0x00000000055D0000-0x00000000055D1000-memory.dmp

            Filesize

            4KB

          • memory/900-37-0x0000000006290000-0x0000000006291000-memory.dmp

            Filesize

            4KB

          • memory/900-18-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

            Filesize

            4KB

          • memory/900-19-0x0000000004840000-0x0000000004841000-memory.dmp

            Filesize

            4KB

          • memory/900-30-0x0000000006130000-0x0000000006131000-memory.dmp

            Filesize

            4KB

          • memory/900-21-0x0000000005280000-0x0000000005281000-memory.dmp

            Filesize

            4KB

          • memory/900-24-0x0000000005710000-0x0000000005711000-memory.dmp

            Filesize

            4KB

          • memory/900-29-0x0000000006100000-0x0000000006101000-memory.dmp

            Filesize

            4KB

          • memory/1680-2-0x00000000741A0000-0x000000007488E000-memory.dmp

            Filesize

            6.9MB

          • memory/1680-3-0x00000000000E0000-0x00000000000E1000-memory.dmp

            Filesize

            4KB

          • memory/1680-5-0x0000000000350000-0x000000000035E000-memory.dmp

            Filesize

            56KB

          • memory/1680-6-0x0000000005C90000-0x0000000005D8E000-memory.dmp

            Filesize

            1016KB