Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 06:42

General

  • Target

    28092023-7984558.xlam

  • Size

    597KB

  • MD5

    51cb52e90364510a29a30a49763a3580

  • SHA1

    bee76d9aff0be7f787e9a1121be500434503ffcf

  • SHA256

    28b8cffcdb66f2059003365c5acb5cdad53a037e8a8e0cc5f942b2e1826d34c9

  • SHA512

    421ffd3570f1260815ab6e8ce7326109bd52fa1f2e9ab4be99683c8b36a1be05f43d0a4f962ca022b42a7b7a177e33659e1a77e51405238b638d4887fe3ab9be

  • SSDEEP

    12288:bYnWy6ouz7b67xITyOmG1Oh+3HVOmddmTHnjQtxuLwafR6jgT3z:sezf6mTdpOg31OmaHAxu0a56jgT3z

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 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\28092023-7984558.xlam
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2412
  • 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
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\OPD.vbs"
      2⤵
        PID:2752

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\OPD.vbs

      Filesize

      1KB

      MD5

      5343c1a8b203c162a3bf3870d9f50fd4

      SHA1

      04b5b886c20d88b57eea6d8ff882624a4ac1e51d

      SHA256

      dc1d54dab6ec8c00f70137927504e4f222c8395f10760b6beecfcfa94e08249f

      SHA512

      e0f50acb6061744e825a4051765cebf23e8c489b55b190739409d8a79bb08dac8f919247a4e5f65a015ea9c57d326bbef7ea045163915129e01f316c4958d949

    • memory/2412-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2412-1-0x0000000072A5D000-0x0000000072A68000-memory.dmp

      Filesize

      44KB

    • memory/2412-6-0x0000000072A5D000-0x0000000072A68000-memory.dmp

      Filesize

      44KB

    • memory/2412-8-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2412-9-0x0000000072A5D000-0x0000000072A68000-memory.dmp

      Filesize

      44KB