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

Static analysis result for SHA-256 4fed7419c9b36869…

MALICIOUS

Office (OLE) / .XLS

482.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 769c7764ecf05cab1c70d9a36a9e888c SHA-1: 7bbf4dfd778d5ba9aa3ebb870b36edfcd8c550d7 SHA-256: 4fed7419c9b368691f2901f96b06a0d81a1f5150ffc7d62bd993a93ef62ed8c1
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Click T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to download and execute a remote loader. The embedded URL 'https://cut.onl/VPMFwa' is the primary indicator for the secondary stage payload. Although VBA macros were present, they contained no executable statements, suggesting the exploit relies on the OLE object itself.

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.
  • 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.

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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