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

Static analysis result for SHA-256 fcd70e52a1999d72…

MALICIOUS

Office (OLE) / .XLS

547.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 94a6ad154ce2a06fdd87848c11eee24f SHA-1: feaccec633556123633a1cb180f41400958c34ab SHA-256: fcd70e52a1999d722bf450c56645b083bcf71e104b7610f3322a3de14c70db72
68 Risk Score

Malware Insights

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

The critical heuristic firing for CVE_2017_0199 indicates that the OLE2Link object is configured to load a remote resource from the URL 'https://n9x.co/gpcwJZ'. This is a common technique for delivering secondary payloads. Although VBA macros were extracted, they contained no executable statements, suggesting the exploit is directly leveraged by the OLE object itself.

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