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

Static analysis result for SHA-256 6282aa1d2e7146aa…

MALICIOUS

Office (OLE) / .DOCX

182.0 KB Created: 2020-10-22 07:03:00 Authoring application: Microsoft Office Word
MD5: c41f6f035d15e1b4faf59e9207136758 SHA-1: a3c8924d948c1925656268c7c1218b07a67397b7 SHA-256: 6282aa1d2e7146aa1e39d997d72fcc66aa1a40b93267fdbba0118831add1b022
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The file contains a VBA macro that is automatically executed upon opening the document, as indicated by the Document_Open macro and CreateObject heuristic firings. The ClamAV detection name 'Doc.Downloader.Logan-9781905-0' strongly suggests the macro's purpose is to download and execute a secondary payload. The VBA code itself is heavily obfuscated, making it difficult to determine the exact download URL or execution method.

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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