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

Static analysis result for SHA-256 69c21379fa74f853…

MALICIOUS

Office (OLE) / .XLS

1.63 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: a59ea912f9ccd4098d6307977c3859a4 SHA-1: e1841c449a88acead18d439589ecdeb56369749f SHA-256: 69c21379fa74f85347b0a396feeeebe3bd3b07f5b93799f1932ecd81bab49dc0
70 Risk Score

Malware Insights

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

The sample leverages the CVE-2017-0199 vulnerability, which is known to facilitate the download of remote code. The embedded URL, 'https://creambunmusttryitemswithgreathappinessgivngforbetterhappinestoevery.business@acessaurl.com/iklUv8o', is indicative of a payload delivery mechanism. Although VBA macros are present, they do not contain executable statements, suggesting the exploit relies on the OLE vulnerability itself.

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://creambunmusttryitemswithgreathappinessgivngforbetterhappinestoevery.business@acessaurl.com/iklUv8o

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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