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

Static analysis result for SHA-256 6cec9dcf805421d9…

MALICIOUS

Office (OLE) / .XLS

1.10 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 5390756ec66fa51aa3d16410e36cf27d SHA-1: bef461fc8c7a099b1b0a4451a52720da708315bc SHA-256: 6cec9dcf805421d9303e0d3fc688e8e8269f35eabfeafe9b25b5f7375f135035
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is an Excel file that exploits CVE-2017-0199, a known vulnerability for remote code execution. It attempts to download a second-stage payload from the URL https://url.terryspace.io/oUMZQY?&peak=ablaze&lycra=cynical&helmet. The VBA macros are present but do not contain executable statements, indicating the exploit is likely delivered through the OLE object itself.

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://url.terryspace.io/oUMZQY?&peak=ablaze&lycra=cynical&helmet

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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