Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/03/2024, 21:43

General

  • Target

    decrypted.xlsx

  • Size

    1.2MB

  • MD5

    93bedaacd8ced0e0ab35eb9f404081da

  • SHA1

    ce350ca7bbdc908679b836bc6dab11d378e54cb2

  • SHA256

    b8dcaaa6f362dc989db1d69d48018ddf36ebb50bd893cd81dd727136c742222e

  • SHA512

    ed3149f2bc9e2c57235ccfc3429958a79e603287f3319a9c402efaf3b377e5b2701c5d565f2cf6ec5cd8ecd7c06c205583105792ff72d05ab5c964b4d38f3ad0

  • SSDEEP

    24576:NaGcCaEIJoa+Pz8hl0Aaf/gGXY7CY+nbEV:PcCaEta+4QwGX9nS

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\decrypted.xlsx
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:1680
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Launches Equation Editor
    PID:1636

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1636-7-0x0000000008FA0000-0x0000000008FA1000-memory.dmp

          Filesize

          4KB

        • memory/1680-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1680-1-0x0000000072DAD000-0x0000000072DB8000-memory.dmp

          Filesize

          44KB

        • memory/1680-6-0x0000000072DAD000-0x0000000072DB8000-memory.dmp

          Filesize

          44KB

        • memory/1680-9-0x0000000006660000-0x0000000006670000-memory.dmp

          Filesize

          64KB

        • memory/1680-8-0x0000000006660000-0x0000000006670000-memory.dmp

          Filesize

          64KB

        • memory/1680-10-0x0000000006660000-0x0000000006670000-memory.dmp

          Filesize

          64KB

        • memory/1680-23-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1680-28-0x0000000072DAD000-0x0000000072DB8000-memory.dmp

          Filesize

          44KB