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

Static analysis result for SHA-256 5bb5ca80b4a08dac…

MALICIOUS

Office (OLE) / .XLSX

171.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: ae8390661a8e9cf11bfc722bb3f001c0 SHA-1: f2dbad47bd231bd4462fcdc9e10957f9d8dae553 SHA-256: 5bb5ca80b4a08dac815f4f70a191a49fe083ba294f6ef6c5735aceb86c6c0448
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing for CVE-2017-0199 indicates the sample is designed to exploit this vulnerability to download a remote payload from the URL 'https://ir.cx/qczYV'. Although VBA macros are present, they appear to be non-executable, suggesting the primary execution vector is the CVE exploit. The presence of embedded JavaScript further supports the exploitation of client-side vulnerabilities.

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://ir.cx/qczYV

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

Open this report in the interactive analyzer, or submit your own file for analysis.