Office (OLE) / .XLS malware analysis — malicious · 9ea225c54784d513

MALICIOUS

Office (OLE) / .XLS

577.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 301f09376d9e6ee143f5cc3e09b4f9ea SHA-1: c21efe4e1ed4998c4b195fa109b5214fb9d88458 SHA-256: 9ea225c54784d513949f7801cf6bf169ba482d7ee5b577b86e8e7e0ec36635ed

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to load remote content. The extracted URL, https://kutt.uk/oKoFv7, is highly suspicious and likely serves as the initial download source for a secondary payload. Although the VBA project itself contains no executable statements, the presence of the OLE vulnerability and the external URL strongly suggest a remote code execution and download attack pattern.

Heuristics 2

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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1206 bytes

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