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

Static analysis result for SHA-256 1b218ec08a60ed1d…

MALICIOUS

Office (OLE) / .XLS

486.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-03-03
MD5: 9cb5e3703c05e7529a5e48977028ff1b SHA-1: 765dd983d92284607e07de70d801abbf4bfccdad SHA-256: 1b218ec08a60ed1dfa64cb87efbe2e1f46d98c729fa8211f7f040039ec9f9fab
70 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution 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 load a remote resource from the provided URL. The embedded URL `http://OIWEROFSDFOOWROOSDFODFOWESODFGDOFGOSDFOIOFSODOXCVVODOO00FOF00F0DF0FFSDF0SDF00SDF0DF0SDF00SDF0S0DF00DF@45.72.78.6/p3.p3.p3.doc` is the primary indicator of compromise. Although VBA macros were extracted, they contain no executable statements, suggesting the exploit relies solely on the OLE vulnerability.

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://OIWEROFSDFOOWROOSDFODFOWESODFGDOFGOSDFOIOFSODOXCVVODOO00FOF00F0DF0FFSDF0SDF00SDF0DF0SDF00SDF0S0DF00DF@45.72.78.6/p3.p3.p3.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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