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

Static analysis result for SHA-256 33ac27d5d62b88cd…

MALICIOUS

Office (OLE) / .XLSX

536.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 4d86c48b5d9f043b6e0b1ef3d2c7bdd4 SHA-1: 9206cc3a88ac7f737bdac86649905a9978443109 SHA-256: 33ac27d5d62b88cda7ee122abcd3209306e9527ab0b9dea5633572d8f3908bdd
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 URL https://zhort.de/UlEYs1. Although the VBA project contains no executable statements, the presence of the OLE2Link object and the embedded URL strongly suggest a malicious intent to compromise the user's system.

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://zhort.de/UlEYs1f�!����i�3~��l&

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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