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

Static analysis result for SHA-256 c29a4862b812d278…

MALICIOUS

Office (OLE) / .XLS

670.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-03-15
MD5: ca82f32db713de30559789ffe7d7ff83 SHA-1: 7fe9be118587b023aa3a2bd88f00cc86ab21ac01 SHA-256: c29a4862b812d2783cc19fb09073220a9d32313e366629ba0ee7ce9ad1bf2aa1
70 Risk Score

Malware Insights

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

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which attempts to download a remote payload from the provided URL. Although the VBA project contains no executable statements, the presence of the exploit and the embedded URL strongly suggest a downloader or initial access mechanism. The URL itself is highly suspicious and likely points to the secondary 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 http://ZZZ0000SDFDS0F0000000Z0Z00000000ZZ000000000000W0WW0W0W0W0W0W0W00W0W0W0W00Z0Z0Z0Z0Z0Z00Z0Z0Z00W0W0W00W@154.22.40.229/89...............89.............doc

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