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

Static analysis result for SHA-256 13fc341d09e4a7f4…

MALICIOUS

Office (OLE) / .XLS

1.23 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 7907112169f986d5727eca0dfea3605f SHA-1: 701e0c9e1b0abaea4ca9bcb2d70bee8d2a25f90a SHA-256: 13fc341d09e4a7f48cb8b617eb05a0f9105e1017e347b977684a93c1ad652907
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.005 Visual Basic

The critical heuristic firing indicates exploitation of CVE-2017-0199, which is used to download and execute a remote payload from the embedded URL. The VBA macro, while not containing executable statements, is present and associated with the document. The embedded URL is the primary indicator for the second-stage payload.

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://link.orai.io/deSNIZ

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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