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

Static analysis result for SHA-256 652a9a5d3f05b0c6…

MALICIOUS

Office (OLE) / .XLS

715.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 325a1c14baeec53d2e6fe7fed72427f9 SHA-1: 4c6603c9abe428fe2f09a889aa42ad4f888ca390 SHA-256: 652a9a5d3f05b0c6285f0c25415e248c55f502735d0f5d94f122fc597bb27915
62 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is an OLE file that triggers the CVE-2017-0199 vulnerability. This vulnerability is known to be used by attackers to download and execute arbitrary code from a remote URL. The embedded URL 'https://ccurl.xyz/48Ef' is highly suspicious and likely serves as the initial stage for a secondary payload.

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.
  • 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://ccurl.xyz/48Ef

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