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

Static analysis result for SHA-256 96a609345b7b85ce…

MALICIOUS

Office (OLE) / .XLS

208.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 4d29d91ac568e03bc1522d849adbc9bf SHA-1: 5bbbe27e474af82dd654d2a6e5c0b1c5d65ced31 SHA-256: 96a609345b7b85cefd6b29a9cee1f8d6aa50a67dd316d2d88cd9c38c425fd768
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 explicitly points to a URL that is likely used to download a secondary payload. No VBA macros were found to be executable, but the OLE structure itself is the vector for exploitation.

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