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

Static analysis result for SHA-256 e97898ef54a25189…

MALICIOUS

Office (OLE) / .XLSX

817.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: d6da1d8d063a86a5ce970cba8c6d4c10 SHA-1: add92e4615e668d1d6f5091fcfa44bad956fdc3a SHA-256: e97898ef54a25189c12965e5e0ecf9c504957706899237759ca1e919c74fef90
68 Risk Score

Malware Insights

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

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to download and execute a remote payload from the provided URL. The VBA project is present but contains no executable statements, suggesting the exploit is delivered through the OLE object itself rather than macro code. The extracted URL is the primary indicator of compromise.

Heuristics 2

  • 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.

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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