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

Static analysis result for SHA-256 3f7e8a794c180d47…

MALICIOUS

Office (OLE) / .XLSX

1.01 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 36650db509a2b5ad75f9c5fe9ef09bb9 SHA-1: 6c737b600fedcda1372d5eed36dce64c4d3f0dca SHA-256: 3f7e8a794c180d47b56d0fc0a9a8fe1be851f51a2ef2301b5f27bee20f26115c
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File T1059.005 Command and Scripting Interpreter: Visual Basic

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to download and execute a remote loader from the provided URL. Although the VBA macros themselves contain no executable statements, the presence of the OLE vulnerability strongly suggests a malicious intent to compromise the system through a remote resource. The extracted URL is the primary indicator of compromise.

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

Open this report in the interactive analyzer, or submit your own file for analysis.