Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 5ce0046c606a280f…

MALICIOUS

Office (OLE) / .DOCX

219.2 KB Created: 2020-10-28 16:03:00 Authoring application: Microsoft Office Word
MD5: 0172247b83896236f397acefaa7eceac SHA-1: bcd6b786ce28b372945bafd227a3cbe07d5dd8dd SHA-256: 5ce0046c606a280f8d74e5263eaa3e9912f6f232c7508ed71f50e8a4972b47a8
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates an attempt to execute code upon opening. The ClamAV heuristic also flags it as a downloader. While the VBA code is heavily obfuscated, the presence of the Document_Open macro and CreateObject points to a malicious downloader attempting to fetch and execute a secondary payload. The embedded URL is benign, but the overall behavior is consistent with a macro-based downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
432b4517275395423e4145d722d6a456d77df175cda38550f4e26528858e8adb
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18870 bytes