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

Static analysis result for SHA-256 b62809eb59d3f4df…

MALICIOUS

Office (OLE) / .XLS

1.53 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: b22d8cd0000f589d6ab037df6f36869c SHA-1: 49520f348a20080a4d79347ca408c047fdc93049 SHA-256: b62809eb59d3f4df912527330b48141ab935841e1a6d0aadc3296ce5d5d4f8a0
68 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 a URL moniker, which is a common technique for remote code execution. The embedded URL 'https://masuk.to/64wdfC' is likely used to download and execute a second-stage payload. Although the VBA macros themselves contain no executable statements, the file structure and the CVE exploit indicate malicious intent.

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

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