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

Static analysis result for SHA-256 d6f8b172b85c53f2…

MALICIOUS

Office (OLE) / .XLS

721.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 39a2363dd232a12cb3f6c39e36ab63f8 SHA-1: dba4580d754eb611a81de0915944856f3405d5bd SHA-256: d6f8b172b85c53f227305324e0f5e4b6b4226c23fe9be8361ecb57e659f69f83
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 a remote payload. The embedded URL points to a suspicious domain, indicating a likely download and execution chain. Although VBA macros were present, 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