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

Static analysis result for SHA-256 84287b09091a09e9…

MALICIOUS

Office (OLE) / .XLS

1.26 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 29c13d974ed015efd9d527d89c9d37bf SHA-1: 5ff1e32fbb85b7f2435b9e8fb9faeb2506f9f6b9 SHA-256: 84287b09091a09e901a88045d1c0e58c97640f3e5d07b7caa2a5acb73017a186
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is an Excel file that leverages the OLE2Link vulnerability (CVE-2017-0199) to download and execute a remote payload from a provided URL. Although VBA macros are present, they do not contain executable statements, indicating the exploit is likely achieved through the OLE object itself. The embedded URL is the primary indicator of the malicious payload's origin.

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/b9HUkFJa2D?&norse=woozy&account=petite&ape

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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