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

Static analysis result for SHA-256 9a1822f8d2cd1d3a…

MALICIOUS

Office (OLE) / .XLS

520.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-02-03
MD5: 7a657141ba917bf9c24cebf1617f068d SHA-1: 260a9dae4e9b63381cb1f104e60b3b03ee638e61 SHA-256: 9a1822f8d2cd1d3a14ebeeaa4cb188cde2b36446e7f5a189aefd91d0a86db8ee
70 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 attempts to download a remote document from the specified URL. Although no VBA code was extracted, the presence of the OLE2Link object and the embedded URL strongly suggests a remote code execution attempt. The file is an Excel spreadsheet, likely used as a lure to trigger the exploit.

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://dgdfgh000fjfg0000hfghf00000ghgfh0000fghf000gsdgf000ggdfg000dfgert000dfg000dfgdfg@192.210.175.124/c/c/a.doc
    • http://schemas.openxmlformats.org/drawingml/2006/main
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/

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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