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

Static analysis result for SHA-256 3cdcc7b2a6540b37…

MALICIOUS

Office (OLE) / .XLS

1.27 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 9c9945a516eaa4ddb5489d5f1617547a SHA-1: d90ac5fb175f781fdd77a06af39de723aabfd155 SHA-256: 3cdcc7b2a6540b37232e31b7010d548ed6e6bfd3e2cd87ac0076e86e8087ef50
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell

The critical heuristic firing indicates the exploitation of CVE-2017-0199 using a URL moniker to download a remote payload. The embedded URL is the primary indicator of the initial stage of the attack. While VBA macros are present, they do not contain executable statements, suggesting the exploit relies solely on the OLE object.

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://link.saja.market/R6xXBhcYBi?&click=undesirable&shallot=adorable&teeth
  • 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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