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

Static analysis result for SHA-256 95cd0652ee34fac5…

MALICIOUS

Office (OLE) / .XLS

182.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2023-01-27
MD5: 3dfe1744418a00ddea6a8286ed10d1f4 SHA-1: 8090ccab354638d98403136d3b36e6e925839bf3 SHA-256: 95cd0652ee34fac5201947f1fa39bb1040a869a1d940fe163d528f813d8d6839
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 load a remote document from the provided URL. Although no VBA code was extracted, the presence of the OLE object and the URL strongly suggests a remote code execution attempt. 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://1234567890OOOOOOOOOOOOOOOOOOOOOOO@198.12.123.120/00000000000_OOOOOOO_ooooooo_ooOOOOOOO_OOOOO/OOOOOOOOOO_OOOOOOO_OOO.doc
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1206 bytes
ole10native_00.bin
0e74f03b42dbfb73650ae77db35efc03f254670fe5c220fbf54bacb45cb41486		 ole-package OLE Ole10Native stream: MBD022502C3/Ole10Native 50530 bytes

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