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
    29/03/2024, 08:00

General

  • Target

    decrypted.xlsx

  • Size

    320KB

  • MD5

    0b07da30180c2a7ce3d6ce631bfdf09b

  • SHA1

    5f6f6330baaaeaaefb5201690102f6bcc0557bce

  • SHA256

    2639bba13a7d4cfb1e72e70c0a8d62b35463618d8dd0120a4e51ed4c6b25decf

  • SHA512

    f2e13b086f097433dceef86b31ea3df6f9c22f999d569e1eca824cbbf2159f342dd4610ea7b744f0236d6d59b96e9889ea2485121803601bbdb6e7cec3659c82

  • SSDEEP

    6144:nSbjrjNifjBC4usZnh6VSQyhsffSqCkienoa+Hz5rhdCVeRcRrRxh:nSfnAdC4BnhISjCf3AenojhYlth

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:2672
  • 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:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2648-5-0x00000000095E0000-0x00000000095E1000-memory.dmp

    Filesize

    4KB

  • memory/2672-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2672-1-0x0000000071F9D000-0x0000000071FA8000-memory.dmp

    Filesize

    44KB

  • memory/2672-4-0x0000000071F9D000-0x0000000071FA8000-memory.dmp

    Filesize

    44KB

  • memory/2672-11-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2672-14-0x0000000071F9D000-0x0000000071FA8000-memory.dmp

    Filesize

    44KB