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

Static analysis result for SHA-256 c67ce6898f90489f…

MALICIOUS

Office (OLE) / .XLS

726.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 8f15afafae5cf74c26c73f3b0610fb82 SHA-1: 83f237a6448c37285ace789e866bc520a18c8960 SHA-256: c67ce6898f90489f1e8421048337d3ebcaaade1e2ff855ff1fb0ac602f9aa90b
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.005 Visual Basic

The sample is an OLE2Link file that exploits CVE-2017-0199, a known vulnerability for remote code execution. The heuristic firing indicates it attempts to load a remote resource from the provided URL. No VBA macros were found to be executable, but the core vulnerability is sufficient for malicious intent. The extracted URL is the primary indicator of compromise.

Heuristics 2

  • 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.

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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