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

Static analysis result for SHA-256 d717f750ba071576…

MALICIOUS

Office (OLE) / .XLSX

92.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-10-26
MD5: 1a417226fc197eee0041bdf9a163e2d0 SHA-1: 0071e4ae0587b0dc4c8ed8c4854f450e82318cda SHA-256: d717f750ba071576c9643d923297b4436ec9368c5c454bf513619cc72ff70a3a
70 Risk Score

Malware Insights

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

The critical heuristic firing for CVE-2017-0199 indicates that the sample is designed to exploit this vulnerability, likely to download and execute a secondary payload from the provided URL. The VBA project, while not containing directly executable statements, is part of the exploit mechanism. The embedded URL is the primary indicator of the remote resource targeted by this exploit.

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://185.254.37.174/HTMLXLAMieBrowser.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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