Office (OLE) / .XLS malware analysis — malicious · e3c29ec01ba1b41c

MALICIOUS

Office (OLE) / .XLS

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

MD5: a064fe438f311ba1c878dd8128c21d2c SHA-1: 9c80a9b91e0bcdbfb5da53285c0ec521aefa100f SHA-256: e3c29ec01ba1b41c8af9b4fc05dd4325069f4528cf7ca0c74713e6b0cc4aedc0

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

The critical heuristic firing indicates exploitation of CVE-2017-0199 via a URL moniker, which is designed to download and execute a remote payload from the provided URL. The VBA project was present but contained no executable statements, suggesting the exploit is triggered by the OLE structure itself rather than macro execution. The truncated document body does not provide further context on the lure.

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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