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

Static analysis result for SHA-256 50e3365d51c12076…

MALICIOUS

Office (OLE) / .XLS

747.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 5a7cc9c73a0c62693c665f18885745f8 SHA-1: b228aa274dc7858a7843359d289c1339d8b721e4 SHA-256: 50e3365d51c12076ba58200817574446b4c1ed9e958b4d7e608df41d4b82fd40
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File T1059.005 Command and Scripting Interpreter: Visual Basic

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which attempts to download a remote payload from the provided URL. Although VBA macros are present, they do not contain executable statements, suggesting the exploit is directly triggered by the OLE object rather than macro execution. The sample is classified as malicious due to this exploit 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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