Office (OLE) / .XLS malware analysis — malicious · 8aed3633419d40b1

MALICIOUS

Office (OLE) / .XLS

450.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-02-27

MD5: f83443bdf05660b771d76dd5c0b41a9f SHA-1: 74e63e0c725134c918ce26b417ef98a987595919 SHA-256: 8aed3633419d40b167e1626c35cf7d0b1e50006dc500c08052cc8f6e456a11e4

70 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

The sample is an Excel file that leverages the CVE-2017-0199 vulnerability, indicated by the 'OLE2Link / URL Moniker' heuristic. This vulnerability allows the file to act as a remote loader, downloading a secondary payload from the specified URL. Although no VBA code was extracted, the heuristic firing strongly suggests malicious intent to download and execute further stages.

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://qquuuq9werqwqqqq00qwewerSASWERWRWIERIWERIEWIR00R0WEQQ00000000000000WEDRDEDRREDDRDD0000000000WSDJHFJDSFJHJ@212.87.204.210/.x.doc

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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