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

Static analysis result for SHA-256 f0dcf60e6c9286f1…

MALICIOUS

Office (OLE) / .XLS

844.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 6c6d5e0e62404113f1e8083525c45645 SHA-1: 330992a815066e4bdcdca9c4aeb555ce61cebb4e SHA-256: f0dcf60e6c9286f16a87cb8711f76e1f6c8643483b2c5b0741a2824d7375d6e3
68 Risk Score

Malware Insights

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

The sample is an OLE file that exploits CVE-2017-0199 via a URL moniker to download and execute a remote payload from the URL http://000024726123567/100000000000000000000000000000.php. Although VBA macros were extracted, they contained no executable statements, suggesting the exploit is directly leveraged by the OLE structure itself.

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