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

Static analysis result for SHA-256 09e7cf5f60e1799d…

MALICIOUS

Office (OLE) / .XLSX

1.18 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 4e180e1a6f71732b7d30a658805d3c3c SHA-1: a22b8a96772cac1467313bd7591dd7d86d66ddd9 SHA-256: 09e7cf5f60e1799d95aaebce0ef9ed68b3b0d2c921f0f4fa9f2471d8bf4dbdc0
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing indicates exploitation of CVE-2017-0199, which is used to download and execute a remote loader. The embedded URL was identified as the source for this payload. No VBA macros were found to be executable, and the document body was heavily truncated, limiting further analysis of the initial lure.

Heuristics 3

  • 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.
  • 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 https://werecreatedbetthingswithgoodthingsgreatformebestthingsbetterwaksgood@bonato.digital/mvJ7VO

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes

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