Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 20:13

General

  • Target

    file.exe

  • Size

    3.8MB

  • MD5

    f5d31bef57f4d69af9f1b44a6f8f8d5e

  • SHA1

    2ffa0bb9f123f6e8cda8ef398d33c1c71a01961e

  • SHA256

    88dbbdcc10e16ae14103f8a0cbcd2d692668fc78efcc36a406880ff1e6b5fac0

  • SHA512

    c07729ab676d6db44b0176fd64d0ec79936bbdba2f2526f7b2f24e4e407e8100372329195018d661e2d79536cd02b9046acf739cebee0607aacbfa3331d9395a

  • SSDEEP

    49152:oyXV/ctnAqeOjKiPPDWw9OmzBo4H0yr+334/PYWsRtQ4vEphxd+ykCSMpt4xYhp0:rcO2RPP8mlH0yr+0W/5vEpnYmuxY7HET

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

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

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1232
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\file.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4852
    • C:\Program Files\Windows Media Player\wmplayer.exe
      "C:\Program Files\Windows Media Player\wmplayer.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "$ws = New-Object -ComObject WScript.Shell; $s = $ws.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nexus.lnk'); $s.TargetPath = 'C:\Program Files\Windows Media Player\wmplayer.exe'; $s.Save()"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Drops startup file
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5012
    • C:\Program Files\Windows Media Player\wmplayer.exe
      "C:\Program Files\Windows Media Player\wmplayer.exe"
      2⤵
        PID:1460

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

            Filesize

            2KB

            MD5

            440cb38dbee06645cc8b74d51f6e5f71

            SHA1

            d7e61da91dc4502e9ae83281b88c1e48584edb7c

            SHA256

            8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

            SHA512

            3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

            Filesize

            1KB

            MD5

            08f9f3eb63ff567d1ee2a25e9bbf18f0

            SHA1

            6bf06056d1bb14c183490caf950e29ac9d73643a

            SHA256

            82147660dc8d3259f87906470e055ae572c1681201f74989b08789298511e5f0

            SHA512

            425a4a8babbc11664d9bac3232b42c45ce8430b3f0b2ae3d9c8e12ad665cd4b4cbae98280084ee77cf463b852309d02ca43e5742a46c842c6b00431fc047d512

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3uih0cuu.ed1.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • memory/1232-0-0x00007FF8563B3000-0x00007FF8563B5000-memory.dmp

            Filesize

            8KB

          • memory/1232-2-0x00007FF8563B0000-0x00007FF856E71000-memory.dmp

            Filesize

            10.8MB

          • memory/1232-3-0x000001A621880000-0x000001A621BF2000-memory.dmp

            Filesize

            3.4MB

          • memory/1232-41-0x00007FF8563B0000-0x00007FF856E71000-memory.dmp

            Filesize

            10.8MB

          • memory/1232-1-0x000001A607370000-0x000001A607378000-memory.dmp

            Filesize

            32KB

          • memory/2648-8-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-9-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-4-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-6-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-10-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-40-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-7-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/2648-42-0x0000000000400000-0x00000000007AA000-memory.dmp

            Filesize

            3.7MB

          • memory/5012-11-0x00007FF8563B3000-0x00007FF8563B5000-memory.dmp

            Filesize

            8KB

          • memory/5012-19-0x000002B9CD7C0000-0x000002B9CD7E2000-memory.dmp

            Filesize

            136KB

          • memory/5012-12-0x00007FF8563B0000-0x00007FF856E71000-memory.dmp

            Filesize

            10.8MB

          • memory/5012-32-0x00007FF8563B0000-0x00007FF856E71000-memory.dmp

            Filesize

            10.8MB

          • memory/5012-39-0x00007FF8563B0000-0x00007FF856E71000-memory.dmp

            Filesize

            10.8MB