Malicious PDF — malware analysis report

Static analysis result for SHA-256 3684e32616bce927…

MALICIOUS

PDF

47.7 KB Created: 2020-04-19 11:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b0875548377360ab320db8dc6451bb43 SHA-1: 62df1691f5ebc6eccb0a92495ed1063a1bf8e1f3 SHA-256: 3684e32616bce9271e8f49fa9bcdb401552a117bf0bd6869e8d8aa0118db4b06
70 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF file contains a significant number of external links to other PDF documents, a technique often used to create link farms for SEO manipulation or to distribute malicious content. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'business studies past papers'. The presence of a 'Visual download / call-to-action button lure' heuristic further supports the idea that the document is designed to trick users into clicking links that lead to malicious downloads.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://theleawoodfamilydentist.com/uploads/1/3/0/5/130589020/130589020.html#business+studies+past+papers+pdf
    • http://yumianzhanginc.com/uploads/1/3/0/4/130483617/5959152.pdf
    • http://bloomindesign.nl/uploads/1/3/0/5/130588527/584605.pdf
    • http://fscmadison.org/uploads/1/3/0/6/130621355/1e53bc96376.pdf
    • http://ibeautytansalon.com/uploads/1/3/1/4/131437341/ziralomisiju-rakofovaxuraguz.pdf
    • http://szalconsulting.com/uploads/1/3/0/6/130620370/6135081.pdf
    • http://mariomasse.com/uploads/1/3/1/3/131382366/rupanabub.pdf
    • http://tjfevent.com/uploads/1/3/0/4/130490977/e32a91cb56a1.pdf
    • http://mybookwish.org/uploads/1/3/0/6/130621394/4601000.pdf
    • http://profitiimi.fi/uploads/1/3/1/0/131070521/leropapokubegudopax.pdf
    • http://greenelementsmarket.com/uploads/1/3/1/4/131438658/3b455fd20e28a.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ad4.bin
6662b8febda39d68c27804272c4f5f36d8362261c80f5b96429bd6f03f1ba0c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD4 7636 bytes
font_01_sfnt_off0000a894.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA894 1708 bytes

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