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Analysis

  • max time kernel
    133s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/11/2024, 21:22

General

  • Target

    af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952.xls

  • Size

    70KB

  • MD5

    59ea30384b2bce2b2c1e8eb98603e517

  • SHA1

    cbe9c01093e6aafc08be8ad1e901a7e299bd3aa8

  • SHA256

    af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952

  • SHA512

    beecaa0af23b566cf7c93296d5585dde298af721cdfd356436c60dcfe50e7c1f6c092b380461d0070c10e5ed4b5ea6e1eaf34388b390dd1b0c166878d108403b

  • SSDEEP

    1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8EgE:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMx

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://strachanclark.com/images/3gc4qCpSFYbBMDEC/

xlm40.dropper

https://synapse-archive.com/images/bKaMr/

xlm40.dropper

https://sumuvesa.com/wp-includes/rgL/

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • 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 use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 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\af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952.xls"
    1⤵
    • 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:868
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4708
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3828
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

    Filesize

    3KB

    MD5

    44a30fd4564e754f62e54e6e7acee9c3

    SHA1

    9911fde9f502fb1a8f572e53af49ac588394484b

    SHA256

    80681ab0c0137ec6c5be1af133286d4746571741917e9d1409321da08731dd64

    SHA512

    d023f590147f63b4878523b9a65ffe3e885932220e54cdcfaa02c7042f439757c87d6af1348f6739b4fadd4eb10d659ec8b346fe0d8a652a4b0268356b338ff9

  • memory/868-12-0x00007FF854450000-0x00007FF854460000-memory.dmp

    Filesize

    64KB

  • memory/868-10-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-4-0x00007FF856DB0000-0x00007FF856DC0000-memory.dmp

    Filesize

    64KB

  • memory/868-5-0x00007FF856DB0000-0x00007FF856DC0000-memory.dmp

    Filesize

    64KB

  • memory/868-3-0x00007FF856DB0000-0x00007FF856DC0000-memory.dmp

    Filesize

    64KB

  • memory/868-6-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-0-0x00007FF856DB0000-0x00007FF856DC0000-memory.dmp

    Filesize

    64KB

  • memory/868-8-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-11-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-7-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-2-0x00007FF856DB0000-0x00007FF856DC0000-memory.dmp

    Filesize

    64KB

  • memory/868-13-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-19-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-9-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-17-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-16-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-14-0x00007FF854450000-0x00007FF854460000-memory.dmp

    Filesize

    64KB

  • memory/868-18-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-15-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-47-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-48-0x00007FF896DCD000-0x00007FF896DCE000-memory.dmp

    Filesize

    4KB

  • memory/868-49-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-53-0x00007FF896D30000-0x00007FF896F25000-memory.dmp

    Filesize

    2.0MB

  • memory/868-1-0x00007FF896DCD000-0x00007FF896DCE000-memory.dmp

    Filesize

    4KB