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

Static analysis result for SHA-256 3bf778e4f4cfc41d…

MALICIOUS

Office (OLE) / .XLS

395.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2026-04-15
MD5: 3fc830e15532816cbdfb87201d7f9c0e SHA-1: e47a9af295978e7c50396f195a341f7d96b27c00 SHA-256: 3bf778e4f4cfc41decdbadc4f5d91cbca3696be47b554b61f12fb6c6d5a34770
110 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.005 Visual Basic

The sample is a Microsoft Excel file that exploits CVE-2017-0199 via an OLE2Link object. This vulnerability allows it to load a remote resource from the URL http://0010217725011/httpswww.adobe.comincreativecloud.htmlsdid=PTYTPT9K&mv=search&mv2=paidsearch&ef_id=6a13031cba641d23f6606ac134b48b60G.php, which is presented as a lure for Adobe Creative Cloud downloads. The embedded VBA macros are present but appear to contain no executable statements, suggesting the primary malicious functionality is driven by the CVE-2017-0199 exploit itself. A secondary embedded PDF was also found with suspicious static findings.

Heuristics 4

  • OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199
    Document contains an embedded OLE link object whose URL Moniker points to a remote URL. When the host file is opened, Office follows the link, downloads the URL, and processes the response based on its Content-Type (HTA -> mshta.exe, RTF → Word, etc.) — the documented CVE-2017-0199 primitive. The URL extension is not a reliable filter; servers can return different payloads to Office's user agent.
  • Secondary embedded PDF body has suspicious static findings high POLYGLOT_CHILD_PDF_STATIC_TRIAGE
    A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
  • VBA project contains no executable statements low OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
  • 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://0010217725011/httpswww.adobe.comincreativecloud.htmlsdid=PTYTPT9K&mv=search&mv2=paidsearch&ef_id=6a13031cba641d23f6606ac134b48b60G.php
    • http://evertype.comhttp://tulrich.comCopyright
    • http://scripts.sil.org/OFL
    • http://scripts.sil.org/OFLRupakaraRegularRupakara

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes
font_00_sfnt_off00000fe3.bin
41c2901ebda5b5d79d4a68e71278578ac4fe004bea942385b0ed0c502c07b584		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3 88240 bytes
polyglot_child_pdf_off00001000.pdf
42bb85b95321f6d5457e9b6a7ea5ee17b6654be3b7b92677a1a8de4cdf75fccf		 polyglot-child-pdf Secondary PDF body inside ole container at offset 0x1000 400896 bytes

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