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

Static analysis result for SHA-256 cd9474c543fa4764…

MALICIOUS

Office (OLE) / .XLSX

1.19 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 516c47c2a64d08d20ee29d3a82734367 SHA-1: ca57eee16b6f79d9d94dba5d9d53b4677328f25f SHA-256: cd9474c543fa476436f42f69dcfb5c174a951594dedd65afe693ba58b9ca2654
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.005 Visual Basic

The sample exploits CVE-2017-0199 using an OLE2Link object to load a remote resource. The embedded URL 'https://url.terryspace.io/hnsuwp' is highly suspicious and likely serves as a loader for a second-stage payload. Although the VBA project itself contains no executable statements, the OLE object's behavior is indicative of a remote code execution attempt.

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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