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

Static analysis result for SHA-256 c820fe8beaeac2e5…

MALICIOUS

Office (OLE) / .XLSX

1.33 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: eefc4cd92e00876ea8019187f658fe72 SHA-1: 18fda772abf91edbe407296472efc77e49f1dde5 SHA-256: c820fe8beaeac2e5a01253b17463cecee17bcf447a0e8c0d9d49b6e71b325b88
128 Risk Score

Malware Insights

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

The sample exploits CVE-2017-0199, a known vulnerability in OLE2Link, to download and execute a remote payload from the URL 'https://feelingbestwithherlifetobegoodforbestmovingthingsihaveonwithhisfriendswith.busins@wedew.link/EdkcgI'. Additionally, it contains an OLE Package with an executable payload, indicating exploitation of CVE-2014-4114. No VBA macros were found to be executable, but the presence of these exploits strongly suggests a malicious intent to compromise the system.

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.
  • CVE-2014-4114 — OLE Package with executable payload critical CVE likely CVE_2014_4114
    OLE Package CLSID found alongside executable file references — a strong CVE-2014-4114/Sandworm-style package-dropper indicator.
  • 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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