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

Static analysis result for SHA-256 f72e4cc0eef0ec48…

MALICIOUS

Office (OLE) / .XLS

635.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 8bb23c70321a50ccae1047cb639b816e SHA-1: 79358c1f386045803c6941fa3f3cf22bf6116876 SHA-256: f72e4cc0eef0ec4857e235dd3f92cace525b1edc104feda10ccdbc22ca3609bf
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The sample is an OLE2Link file that exploits CVE-2017-0199, a known vulnerability for remote code execution. The heuristic firing indicates it attempts to load a remote resource from the URL http://sini.la/mgz8n. This suggests the file acts as a downloader for a second-stage 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 http://sini.la/mgz8n�Ǘy5����