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

Static analysis result for SHA-256 d953a22fde417e47…

MALICIOUS

Office (OLE) / .XLSX

1.26 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 1dddb43ea2764868a1e34099ed8f089c SHA-1: 942d93f1c8efbc23ececf413cd8435cd3873fc90 SHA-256: d953a22fde417e47794d2b587d733d4bdae36c71d9a800d1cefbae39b0a76922
68 Risk Score

Malware Insights

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

The sample is an OLE2 file that exploits CVE-2017-0199 via a URL moniker to download and execute a remote payload from the URL https://link.saja.market/yGzuQC0R2I?&wealth=rare&suitcase. Although the VBA project itself contains no executable statements, the exploit mechanism is clearly identified. The file is therefore acting as a loader for a secondary malicious payload.

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