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

Static analysis result for SHA-256 80a5003312673420…

MALICIOUS

Office (OLE) / .XLSX

1.24 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 560de4a8debc0d6375c082d8ac710f2b SHA-1: cea5122e49eea9d5828131ad44668f1e7f2abb27 SHA-256: 80a5003312673420f18356b8cf721a9e4fdeb705c6a9bedf516356dad29b92a5
70 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing indicates the sample is weaponized with a URL that exploits CVE-2017-0199. This URL points to a remote HTA file hosted on an IP address, which is likely a second-stage payload. No VBA macros were found to be executable, but the presence of the exploit and the embedded URL strongly suggest a malicious intent to download and execute arbitrary code.

Heuristics 3

  • OLE2Link / URL Moniker weaponized URL — CVE-2017-0199 critical CVE exact CVE_2017_0199_WEAPONIZED_URL
    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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://greatentrywithgreathappinessofanytime.doc@188.127.231.170/xampp/kbnc/greatdaynicedayeverydaygoodday.hta

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