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

Static analysis result for SHA-256 df0151d7a221286b…

MALICIOUS

Office (OLE) / .XLS

245.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-03-29
MD5: 0286cd8b1d38453636fcbe1d3df3e59d SHA-1: bbde88eaf55bc0e3f48e317dbefe6cb1e24736a5 SHA-256: df0151d7a221286b29e80b13cf60e14bd42eef50e389080771eaef782f4a0f18
70 Risk Score

Malware Insights

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

The sample is an Excel file that exploits CVE-2017-0199 via a URL moniker to download and execute a remote payload from the specified URL. Although the VBA project itself contains no executable statements, the OLE structure indicates a remote loader capability. The embedded URL is the primary indicator of compromise.

Heuristics 3

  • 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.
  • 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://KKKKKK2K3K3K3K3K3K3K3KK3K3K3KK3K3K3K3KK3K34K4KK5KK5K5K5K5KK5L5K5K5L5KL5K5L5K5LK5L5K5LK5L5K5ERKLERKRELREKLLERKLRLERK4L4K3L4K4L4@23.95.60.112/83................83........doc

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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