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Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    01/02/2024, 11:38

General

  • Target

    decrypted.xlsx

  • Size

    1.2MB

  • MD5

    af961461e9ef8d74b3c64e8e7f1a4ad0

  • SHA1

    58171737d8f051d1c2673757d49480a306677a02

  • SHA256

    27676a4cc62c36461e76b650920a012c535b30ab05f9091a19cb313aa3eb4f5b

  • SHA512

    b9afd1f1599e9d58a51c9a7afba629973b5c61ad9d70c4f357d6af763e4e8d2c9d9ccd61495d3a4164803b0cff9762af1487c30e85f6224dbe0711bf72462216

  • SSDEEP

    24576:jaGYBeNbq+Sf83ib8iZQiKuVlX75I1Inb0T:dEIbq18UQ4VFJnk

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:2720
  • 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:2332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2332-7-0x0000000005B50000-0x0000000005B51000-memory.dmp

    Filesize

    4KB

  • memory/2720-10-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-12-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-1-0x00000000727BD000-0x00000000727C8000-memory.dmp

    Filesize

    44KB

  • memory/2720-8-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-9-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2720-11-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-6-0x00000000727BD000-0x00000000727C8000-memory.dmp

    Filesize

    44KB

  • memory/2720-13-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-14-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-15-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-16-0x0000000007550000-0x0000000007560000-memory.dmp

    Filesize

    64KB

  • memory/2720-29-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2720-34-0x00000000727BD000-0x00000000727C8000-memory.dmp

    Filesize

    44KB