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

Static analysis result for SHA-256 4003a47d414bd258…

MALICIOUS

Office (OLE) / .XLS

28.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: f85da172827df071fcbfa27fd2d32190 SHA-1: 2744105721196326a051f30a8f1dfa4f82511903 SHA-256: 4003a47d414bd258886346b0ea5eefd6515a129ec4ec011e6c1f46ebedbe31c7
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell T1204 User Execution

The sample is a weaponized Microsoft Excel file exploiting CVE-2017-0199 via an OLE2Link object. It contains an embedded URL that points to a malicious HTA file, indicating a downloader or initial access vector. The VBA project is present but contains no executable statements, suggesting the exploit relies on the OLE object rather than macro execution.

Heuristics 3

  • OLE2Link / URL Moniker weaponized URL — CVE-2017-0199 critical CVE exact CVE_2017_0199_WEAPONIZED_URL
    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.
  • 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://----------------______________@1613537156/200/IMG__Pict00900300000200340000050000600950000004959000000004900.hta

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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