Office (OLE) / .XLS malware analysis — malicious · 89171d5a938c7ea6

MALICIOUS

Office (OLE) / .XLS

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

MD5: 7f850ee57f947c5d1a75580af7574450 SHA-1: 73884d7f274f67221d7199a93ca117737206b0dd SHA-256: 89171d5a938c7ea64ec4cf206a6ba33aa749ba922a24dcf1c09087488bcd9671

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 an OLE2Link object, which is designed to load remote content. The embedded URL 'http://lnkz.at/LXCu1' 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 object and the associated URL strongly suggest a malicious intent to download and execute arbitrary code.

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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