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

Static analysis result for SHA-256 5fe24f9e46087777…

MALICIOUS

Office (OLE) / .DOCX

223.2 KB Created: 2020-09-21 04:09:00 Authoring application: Microsoft Office Word
MD5: fb8b474c08d480ae7cfa6b80551d5a38 SHA-1: 93cc781720c038964bf74df82568967ae1f1c03c SHA-256: 5fe24f9e46087777c1109a653e421a0540d844586bdb6163c038a1ccddbeec3f
242 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open auto-execution macro, and triggers heuristics for CreateObject and GetObject calls, indicating malicious intent. The ClamAV detection explicitly identifies it as a dropper, likely associated with the Emotet family, which commonly uses spearphishing attachments to deliver payloads. The VBA script is heavily obfuscated but its structure suggests it is designed to download and execute a secondary stage.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetIOS-9402070-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetIOS-9402070-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
5616715bcc9f37a507701fce0794395b42220e4bc894eb29a7aefa2b3d5ff263		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19230 bytes

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