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

Static analysis result for SHA-256 34954100e490a773…

MALICIOUS

Office (OLE) / .XLSX

1.12 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 9d0c7d82a1c18e1006e6075584652e83 SHA-1: 68f97d343b3419df1b2d25c50c0d72d6af4fd59e SHA-256: 34954100e490a77310918573e56868e651855b54ddb0cc0dd334f55e8e195f14
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.005 Visual Basic

The critical heuristic firing indicates that this OLE file is weaponized with a URL that exploits CVE-2017-0199. The embedded URL, http://198.12.89.24/xampp/kvrmot/kvrm/greatcomebackdoingforeverwithgreat.hta, is likely used to download and execute a second-stage payload. Although the VBA project contains no executable statements, the presence of the weaponized URL is sufficient evidence for malicious intent.

Heuristics 2

  • OLE2Link / URL Moniker weaponized URL — CVE-2017-0199 critical CVE exact CVE_2017_0199_WEAPONIZED_URL
    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

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