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

Static analysis result for SHA-256 3a07e9e62566beb8…

MALICIOUS

Office (OLE) / .XLSX

1.23 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 87f42dcc122d26f08cd225997dfbccab SHA-1: 73796bd0286d70802455fa410598e0a9f1ad436b SHA-256: 3a07e9e62566beb8be9c2b444b7b16debd391464111023c440f0b793b8a1ac92
68 Risk Score

Malware Insights

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

The file contains a critical heuristic firing for CVE-2017-0199, indicating it exploits a vulnerability in OLE2Link to load remote content. The extracted URL, https://url.terryspace.io/8Iy5la?&lead=drab&heyday, is likely used to download and execute a second-stage payload. Although the VBA project contains no executable statements, the exploit itself is sufficient to classify the attack pattern.

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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