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

Static analysis result for SHA-256 a6f90028e29788b7…

MALICIOUS

Office (OLE) / .XLS

1.01 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: acd0a213959806b51ef1c8989bbed22c SHA-1: a245b39f48dcfc9e8788e47a96248e31eab50a61 SHA-256: a6f90028e29788b7d51add6115ff0684c0ffde9fc25bea653b25b3a976bfba00
70 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 attempts to load a remote resource from http://tny.wtf/Dl. Although the VBA project contains no executable statements, the presence of the OLE2Link object and the associated URL strongly suggest a malicious intent to download and execute a second-stage payload. The file is an Excel spreadsheet, and the creation date is old, suggesting it might be part of a long-running campaign.

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.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.