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

Static analysis result for SHA-256 5b7e376181764484…

MALICIOUS

Office (OLE) / .XLS

1.25 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 9c48edfe66430d7cc3b1511622bb6cf5 SHA-1: 1d3d87ffc88b4fa2ff4c3ac105d007f260abec8c SHA-256: 5b7e3761817644841928aa1d6142e491363db21d7a6526ee4970f109118d96c5
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample leverages the CVE-2017-0199 vulnerability, which is known to facilitate the download and execution of remote payloads. The embedded URL points to a resource that likely serves as the initial stage of a multi-stage attack. No VBA macros were found to be executable, suggesting the exploit is directly triggered by the OLE structure.

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.saja.market/7UwWrWaz9W?&gamma-ray=legal&nest

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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