Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-03-2024 22:08

General

  • Target

    b5c6efb7aee82fcc0d2e60b31e339d14.xls

  • Size

    36KB

  • MD5

    b5c6efb7aee82fcc0d2e60b31e339d14

  • SHA1

    ff3491f209c1a2eee5f3eced2c72adfa94015830

  • SHA256

    2eca87606545ad7477f97570095549ce010803a56301708fe424edc2f405eb13

  • SHA512

    973b7163f21374b3d76a74a78260e2bb1ebd32318533f246d567e331122ddd070b04e2d9256ba166d4a4e2ff17f268c886af3ca598f955ff46a730f7ba84017d

  • SSDEEP

    768:0PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJbOQlgDMlNdZ:wok3hbdlylKsgqopeJBWhZFGkE+cL2NE

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 4 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\b5c6efb7aee82fcc0d2e60b31e339d14.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:3896
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\p1C.vbs
      2⤵
      • Process spawned unexpected child process
      PID:4784
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\p1C.vbs"
      2⤵
        PID:464

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Documents\p1C.vbs

      Filesize

      566B

      MD5

      80aea70135ff73751c7f0f91d165a3f6

      SHA1

      ec08f6a32bec3723ff21ec569c30be1005d8afe9

      SHA256

      93f5e5b09806ddfa9557c5cd3fa877f73d7a9e6771101aca48314daed2c4873f

      SHA512

      f659fa279076073ceabb73b30580a4668add08f0a1939cbd216bc779be9c1c7b32b20d3db1211a61f24ab71b997b3f38812e9ce2e571510fab84a85457072445

    • memory/3896-10-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-18-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-3-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-4-0x00007FFED07D0000-0x00007FFED07E0000-memory.dmp

      Filesize

      64KB

    • memory/3896-5-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-7-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-8-0x00007FFED07D0000-0x00007FFED07E0000-memory.dmp

      Filesize

      64KB

    • memory/3896-11-0x00007FFECE560000-0x00007FFECE570000-memory.dmp

      Filesize

      64KB

    • memory/3896-30-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-2-0x00007FFED07D0000-0x00007FFED07E0000-memory.dmp

      Filesize

      64KB

    • memory/3896-6-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-12-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-14-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-13-0x00007FFECE560000-0x00007FFECE570000-memory.dmp

      Filesize

      64KB

    • memory/3896-15-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-16-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-17-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB

    • memory/3896-0-0x00007FFED07D0000-0x00007FFED07E0000-memory.dmp

      Filesize

      64KB

    • memory/3896-1-0x00007FFED07D0000-0x00007FFED07E0000-memory.dmp

      Filesize

      64KB

    • memory/3896-9-0x00007FFF10750000-0x00007FFF10945000-memory.dmp

      Filesize

      2.0MB