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

Static analysis result for SHA-256 09ca823f72332cc9…

MALICIOUS

Office (OLE) / .DOCX

178.5 KB Created: 2020-10-22 15:17:00 Authoring application: Microsoft Office Word
MD5: 6b2cc85017cf4c78e3354dd3b01e6d30 SHA-1: 928b6a1a9465f918dc07fa78e7cc7afc2b72c4d9 SHA-256: 09ca823f72332cc93ad72355e7aeb4e5349ff3b196300906051fc3b0335da612
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

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 detection as 'Doc.Downloader.Logan-9781905-0' strongly suggests the macro's purpose is to download a secondary payload. The embedded URL, though benign, is noted as part of the document's structure.

Heuristics 6

  • ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
  • 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
cecccb4a1113767f9883636c8aa1a2de57ced4949da2d8bcaf50534e5e598b34		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18857 bytes

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