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

Static analysis result for SHA-256 e0851354601c6287…

MALICIOUS

Office (OLE) / .XLS

1.08 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-10-05
MD5: 2743f7c049fd03e05e55b0476a537822 SHA-1: f9e59765f8c56d6f37b51e4395903dcb4565474e SHA-256: e0851354601c6287a673d0a7a0580efc6884f32d841637aea3f7661f6fe13ab3
70 Risk Score

Malware Insights

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

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which attempts to download a secondary payload from the provided URL. Although the VBA macros themselves do not contain executable statements, the exploit mechanism is clearly defined by the heuristic. The embedded URL is the primary indicator of compromise.

Heuristics 3

  • 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.
  • 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://94.156.253.128/2144/io0Ioi0IOIOOIOi0i00ioioii0ioi0oiOII0OIO0OIOI0I0000%23%23%23%23%23%23%23%23%23%23%23%23%23%230000000%23%23%23%23%23%23%23%23%23%23%23%23%23%2300000000.dOC

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

Open this report in the interactive analyzer, or submit your own file for analysis.