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

Static analysis result for SHA-256 c92c761a4c5c3f44…

MALICIOUS

Office (OLE) / .XLS

1.63 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 15cc16763e16a1239eac4f78d5e4f316 SHA-1: 601c9f4ab0fe48eea3f852ea9418eb3f0b3d8f99 SHA-256: c92c761a4c5c3f44e914d6654a678953d56d4d3a2329433afe1710b59c9acd3a
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, which is a known vulnerability used to download and execute remote code. The extracted URL is likely the source of the secondary payload. Although VBA macros were present, they contained no executable statements, suggesting the exploit is directly embedded within the OLE structure.

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.
    URL https://agoodaccountowneretryingtokeepingbestventurewithgreatnessgoodforme.business@acessaurl.com/V2i71on
  • 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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