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

Static analysis result for SHA-256 768e6d291827c0a7…

MALICIOUS

Office (OLE) / .DOCX

182.0 KB Created: 2020-10-22 07:03:00 Authoring application: Microsoft Office Word
MD5: 42bf72db34e820c93619da08c296d3f2 SHA-1: c6d2fe4151f88c14e3697ca37e72327e3f08ed92 SHA-256: 768e6d291827c0a75bdafb995ee050735e1d0b71f154baf042ec0bf464fa9b21
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, with a specific 'Document_Open' macro detected. The presence of 'CreateObject' and p-code execution within the auto-executing macro strongly suggests the execution of arbitrary code. The ClamAV detection 'Doc.Downloader.Logan-9781905-0' further indicates a downloader functionality. The VBA script itself is heavily obfuscated, making it difficult to determine the exact payload or destination, but the overall pattern points to a malicious downloader.

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
9eefe8f6ffcba14d0b71c6151e5387d8f5be4d801ca642a4cdf376fd6353abf9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19020 bytes

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