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

Static analysis result for SHA-256 6b706516aa4a6c84…

MALICIOUS

Office (OLE) / .DOC

206.2 KB Created: 2019-04-03 06:22:00 Authoring application: Microsoft Office Word
MD5: 94a31e1059d0ae235d05dbde15893e58 SHA-1: b417f041c796ddcf4049f1601a797668e0204f50 SHA-256: 6b706516aa4a6c84d7288790bd311b5ff46812d716913cdb7e2868b7502eb5f5
202 Risk Score

Malware Insights

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

The file is a Microsoft Word document with a high-confidence detection for VBA macros, specifically an AutoOpen macro that uses GetObject. The ClamAV detection name 'Doc.Downloader.00536d-6922084-0' strongly suggests a downloader functionality. The VBA script, although heavily obfuscated, is structured to likely execute a payload, aligning with the downloader pattern.

Heuristics 6

  • ClamAV: Doc.Downloader.00536d-6922084-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.00536d-6922084-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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
e7988c7bf10c181c2dbc8265b88d7fb77c0a95f0bc43e2c053c362fd98e52aee		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 22178 bytes

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