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

Static analysis result for SHA-256 023e4d0182e966be…

MALICIOUS

Office (OLE) / .XLS

1.20 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: a4d17327df83720e9e7f11d3c67545d1 SHA-1: 47645300fde3612809660809b19f501f04045a22 SHA-256: 023e4d0182e966bee464c3f58101b422a8c7a38769928f175a2815774bfe321b
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing indicates exploitation of CVE-2017-0199, which is used to download and execute a remote payload from the provided URL. The VBA macros are present but do not contain executable statements, suggesting the exploit is directly leveraging the OLE object rather than macro execution. 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://go.halpindev.com/bakUQ8

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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