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

Static analysis result for SHA-256 7b75ff23cf680717…

MALICIOUS

Office (OLE) / .XLS

1.03 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: d6ad3108a8014d64c39ae1fe463112c5 SHA-1: f5bb7665aa11ad21d9fa117a6e7b270c533a5844 SHA-256: 7b75ff23cf680717091181e61002f59e66a118302af798fc031548aead7a6af4
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing indicates exploitation of CVE-2017-0199, which is used to download and execute a remote loader. The embedded URL points to a suspicious domain, likely serving the second-stage payload. No VBA macros were found to be executable, but the exploit itself is sufficient for initial execution.

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://acesso.run/j2AmN9?&cameo=misty&chador=orange&alto=dark&cloak=domineering&efficacy=deeply&pride=grouchy&affect=acoustic&minute=woozy&neuropathologis

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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