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Analysis

  • max time kernel
    133s
  • max time network
    137s
  • 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, 21:23

General

  • Target

    81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc.xls

  • Size

    70KB

  • MD5

    b6f9d29a24d114095cb92c4fb4d2337b

  • SHA1

    f36edd212c76f6be18b6639525ad36b368b86306

  • SHA256

    81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc

  • SHA512

    4b4377132c18f644e14a63581c2ccf0f2d506fcd7865fdb65fba83d35f8a54039077afa462a8cfb60b08fdc0dbeac7e8e578813e7ed545d0283b5de584043b55

  • SSDEEP

    1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8Egk: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\81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc.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:956
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1788
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:892
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1988

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

    1KB

    MD5

    691d18e31d168800948dd8feab2a1662

    SHA1

    62517ebd7e0539f5f31e18f52caa212634acd6cf

    SHA256

    dfad55ebf4d2c32a3392373d47a361ceb6dceea68cb4290fc1134d8a838fc5b1

    SHA512

    c2cbb5cc4d899811cb837d452b4451dcf9b1f86a7676a0529f8d81c1a876f1ee42afdaa26e9bb8b9d9bb040a2ba4c18085281252a59441966a9e178bf0cbc894

  • memory/956-12-0x00007FFDBD370000-0x00007FFDBD380000-memory.dmp

    Filesize

    64KB

  • memory/956-9-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-2-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp

    Filesize

    64KB

  • memory/956-4-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp

    Filesize

    64KB

  • memory/956-6-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-7-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-0-0x00007FFDFF6ED000-0x00007FFDFF6EE000-memory.dmp

    Filesize

    4KB

  • memory/956-10-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-11-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-8-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-3-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp

    Filesize

    64KB

  • memory/956-13-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-16-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-17-0x00007FFDBD370000-0x00007FFDBD380000-memory.dmp

    Filesize

    64KB

  • memory/956-19-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-18-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-14-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-15-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-5-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp

    Filesize

    64KB

  • memory/956-47-0x00007FFDFF6ED000-0x00007FFDFF6EE000-memory.dmp

    Filesize

    4KB

  • memory/956-48-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-49-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-50-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp

    Filesize

    2.0MB

  • memory/956-1-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp

    Filesize

    64KB