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

Static analysis result for SHA-256 660aaef6f6a3f9e1…

MALICIOUS

Office (OLE) / .XLS

1.50 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 2ddcb927d9262253b6a2b4dfe344030d SHA-1: 08ea81a92c1f954cd92ddde8602eea541cbcb405 SHA-256: 660aaef6f6a3f9e1be311a5cb89c208d60c5f9eb28b793bf478d01704ffa1b25
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.005 Visual Basic

The sample is an Excel file that exploits CVE-2017-0199 via an OLE2Link object to download a remote payload from the URL https://zo.cm/5sg0k?&@url. Although the VBA project contains no executable statements, the critical heuristic firing indicates the exploit mechanism is present and active. 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 https://zo.cm/5sg0k?&@url

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

Open this report in the interactive analyzer, or submit your own file for analysis.