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

Static analysis result for SHA-256 e3f883dc3b401f72…

MALICIOUS

Office (OLE) / .XLS

308.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2024-06-04
MD5: 88e139259d8f081e4ebd5ef7dd54e446 SHA-1: d939694a14f19579ab1d37617d43ca3b54ad3a10 SHA-256: e3f883dc3b401f7232adb797186f47b2d037951afb8cae4f80db0f9cb532b59e
70 Risk Score

Malware Insights

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

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which attempts to download a remote payload from the URL http://ln.run/ycQmY. Although the URL is marked as confirmed benign, the exploit mechanism itself is indicative of malicious intent. The VBA macros are present but do not contain executable statements, suggesting they are not the primary vector for execution in this instance.

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 http://ln.run/ycQmY

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