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Analysis

  • max time kernel
    90s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30/04/2024, 20:12

General

  • Target

    Seven.exe

  • Size

    139KB

  • MD5

    350273e0d2e8a9ba5e37b791016112a0

  • SHA1

    5bfb616dd46f67d1dcbbff55ca5917ffc1ec8b71

  • SHA256

    27297bf8139bea755e9297e7e1489d827d1ee09a8e1d94a3ef96a2edb2de61ba

  • SHA512

    b1e768524b4e840bd5f4163205122dd1725583245d8bfd5cbd89eb21a5fb9d33aff1b7b0ca42132b7dae469e025068ae663b3b02ad59927a558dc340141ec91b

  • SSDEEP

    3072:miS4omp03WQthI/9S3BZi08iRQ1G78IVn27bSfcJd8ltw:miS4ompB9S3BZi0a1G78IVhcTct

Score
10/10

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Blocks application from running via registry modification 1 IoCs

    Adds application to list of disallowed applications.

  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Disables cmd.exe use via registry modification 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Drops file in System32 directory 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Seven.exe
    "C:\Users\Admin\AppData\Local\Temp\Seven.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • UAC bypass
    • Blocks application from running via registry modification
    • Disables RegEdit via registry modification
    • Disables cmd.exe use via registry modification
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:900
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4964
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Windows\System32\Desktop
      2⤵
      • Drops file in System32 directory
      PID:760
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Users\Public\Documents\Desktop
      2⤵
        PID:3260
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /C attrib +h C:\Windows\System32\Desktop
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3296
        • C:\Windows\system32\attrib.exe
          attrib +h C:\Windows\System32\Desktop
          3⤵
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:1900
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /C attrib +h C:\Users\Public\Documents\Desktop
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:488
        • C:\Windows\system32\attrib.exe
          attrib +h C:\Users\Public\Documents\Desktop
          3⤵
          • Views/modifies file attributes
          PID:2476
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Windows\System32\Desktop
        2⤵
        • Drops file in System32 directory
        PID:2912
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Users\Public\Documents\Desktop
        2⤵
          PID:4344
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Windows\System32\Desktop
          2⤵
          • Drops file in System32 directory
          PID:3104
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Users\Public\Documents\Desktop
          2⤵
            PID:1448
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /C attrib +h C:\Windows\System32\Desktop
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1760
            • C:\Windows\system32\attrib.exe
              attrib +h C:\Windows\System32\Desktop
              3⤵
              • Drops file in System32 directory
              • Views/modifies file attributes
              PID:4180
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /C attrib +h C:\Windows\System32\Desktop
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2244
            • C:\Windows\system32\attrib.exe
              attrib +h C:\Windows\System32\Desktop
              3⤵
              • Drops file in System32 directory
              • Views/modifies file attributes
              PID:1612
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /C attrib +h C:\Users\Public\Documents\Desktop
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4812
            • C:\Windows\system32\attrib.exe
              attrib +h C:\Users\Public\Documents\Desktop
              3⤵
              • Views/modifies file attributes
              PID:1020
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /C attrib +h C:\Users\Public\Documents\Desktop
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1408
            • C:\Windows\system32\attrib.exe
              attrib +h C:\Users\Public\Documents\Desktop
              3⤵
              • Views/modifies file attributes
              PID:2452

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wbufcayk.fnn.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Public\Documents\Desktop

          Filesize

          875B

          MD5

          524f2dae44dd43fcb81135a6fc679544

          SHA1

          2002231da96911e340244ddeaf716ff22f2a246a

          SHA256

          af409862a7467d99b68d44362366ebb59e906e031b394cd5bcc6b3df9c670909

          SHA512

          c50f5174e3d711d18b6e0ad2cbeb576aa6e0452c79bff596849ea47115b64ffbd53fa158a3e48b2e3d7f957e9dfef39715bb50e6605e841eae6bb70d82b3cf99

        • C:\Windows\System32\Desktop

          Filesize

          1KB

          MD5

          4a441628cea84da81114fa1ef32c671f

          SHA1

          3bb4934f85f443f5286fbd6ad8bb844869995ee7

          SHA256

          e61fe53593f5fb72aedfcae336b328241faf096c10fc4b2fd2d5d3fbcf87c3bb

          SHA512

          12fd71e24235b71d566dd3de065fe35037d0d7ca74168bee01cdcf88caee804ec7bf88f09ed885a2b954dc0b13448cac84377fbc15e291b26cad37a2675e919a

        • memory/4964-10-0x000001C520430000-0x000001C520452000-memory.dmp

          Filesize

          136KB

        • memory/4964-11-0x00007FFF40F50000-0x00007FFF41A12000-memory.dmp

          Filesize

          10.8MB

        • memory/4964-13-0x000001C5202B0000-0x000001C5202C0000-memory.dmp

          Filesize

          64KB

        • memory/4964-12-0x000001C5202B0000-0x000001C5202C0000-memory.dmp

          Filesize

          64KB

        • memory/4964-16-0x00007FFF40F50000-0x00007FFF41A12000-memory.dmp

          Filesize

          10.8MB