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

Static analysis result for SHA-256 46955c52b439de22…

MALICIOUS

Office (OLE) / .XLS

707.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 139909bd4fd16db71beab2a20bb02f45 SHA-1: 87131c57af7408a1513cc02e4d7cf252bed129a2 SHA-256: 46955c52b439de22c0e3896496c00e27c2b9e653eac91901c2ddafbebf924b0e
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.005 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. The embedded URL 'https://strmr.co/pNnPtW' is the primary indicator for this payload delivery. No VBA macros were found to contain executable statements, but the OLE structure itself is the vector for exploitation.

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