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

Static analysis result for SHA-256 44a2387595ca4430…

MALICIOUS

Office (OLE) / .XLSX

840.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 6033281818e9b84be89a3c83373fd0fb SHA-1: 15bb3af3d53f34b4cc51a105fd59c1f63b2e07e5 SHA-256: 44a2387595ca4430b8c30e4f227f1888dda94b890554f09603f2caeab5642b49
68 Risk Score

Malware Insights

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

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to load remote content. The embedded URL 'https://getabre.com/O1pw7y' is the source for this malicious payload. Although VBA macros were present, they contained no executable statements, suggesting the primary infection vector is the OLE vulnerability.

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

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