Overview

overview

10

Static

static

75531efbfe...d9.exe

windows7-x64

10

75531efbfe...d9.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    163s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 12:51

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General

  • Target

    75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe

  • Size

    97KB

  • MD5

    5383675e7dee2bad06115abaa5a59b4b

  • SHA1

    5350db1e955b919d3e220cc37c48fb58a8e7b6ab

  • SHA256

    75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9

  • SHA512

    e7ac2e7693620321db0a1f7c984f0d874a064978e6ea609bccd52209eab49d593b9ac77bfa174d813f4871e00bb2565a7c471d8fde6ecaeaad782b146a4edbfd

  • SSDEEP

    1536:MZpgvMIvRvwHMWhY7ZXaXJyi5aVwCDOA7yEYkeZ3p4wZJKvcXO:MnbI5vwHMWhYwJyi5wwC35QT4mXO

Score
10/10
persistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe
    "C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe
      "C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe"
      2⤵
        PID:5088
      • C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe
        "C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe"
        2⤵
          PID:5048
        • C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe
          "C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe"
          2⤵
            PID:5096
          • C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe
            "C:\Users\Admin\AppData\Local\Temp\75531efbfefba9508bf57c600906b84136b2ea08cbaaebfd7ef76c870be6bad9.exe"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4244
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d explorer.exe,"C:\Users\Admin\AppData\Roaming\SunJava\JavaUpdata.exe"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3152
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d explorer.exe,"C:\Users\Admin\AppData\Roaming\SunJava\JavaUpdata.exe"
              3⤵
              • Modifies WinLogon for persistence
              PID:2036

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/2036-145-0x0000000000000000-mapping.dmp

          Download

        • memory/2872-132-0x0000000074B10000-0x00000000750C1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/2872-133-0x0000000074B10000-0x00000000750C1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/2872-146-0x0000000074B10000-0x00000000750C1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3152-144-0x0000000000000000-mapping.dmp

          Download

        • memory/4244-142-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/4244-138-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/4244-140-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/4244-141-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/4244-137-0x0000000000000000-mapping.dmp

          Download

        • memory/4244-143-0x0000000000403000-0x0000000000406000-memory.dmp

          Filesize

          12KB

          Download

        • memory/5048-135-0x0000000000000000-mapping.dmp

          Download

        • memory/5088-134-0x0000000000000000-mapping.dmp

          Download

        • memory/5096-136-0x0000000000000000-mapping.dmp

          Download