Malicious PDF — malware analysis report

Static analysis result for SHA-256 8709426cb49532c2…

MALICIOUS

PDF

75.0 KB Created: 2020-04-01 12:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8fa6e8791bc11aac04f4196624f93b23 SHA-1: a344e2eda049cc0a34d48179067e247f8933958f SHA-256: 8709426cb49532c2b266b3197ae55c5f4be9a73a2d26df8f95d11e2f2592623e
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to various domains, a technique often used for SEO link farming or to distribute malicious content. The document body itself is heavily obfuscated but contains references to the URLs. The primary attack pattern involves directing users to a network of PDF files hosted on these domains, likely to generate traffic or serve as a landing page for further malicious activity. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 3

  • 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.
  • 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://leadinglegalservice.com/uploads/1/3/1/4/131454396/131454396.html#como+hacer+figuras+con+caracteres+del+teclado
    • http://mychicagorides.com/uploads/1/3/0/7/130738956/pebizewe.pdf
    • http://liftmeup.gallery/uploads/1/3/1/0/131071277/buwaruda_babokoduk_bikagokewi_dotuj.pdf
    • http://tommigirlsellsjax.com/uploads/1/3/0/6/130621654/lemepi.pdf
    • http://mountainairdance.org/uploads/1/3/1/4/131438876/4432462.pdf
    • http://nchonorflight.org/uploads/1/3/1/3/131398386/729918.pdf
    • http://postandquiet.com/uploads/1/3/0/6/130604032/betodafa.pdf
    • http://drakebettis.com/uploads/1/3/0/7/130775831/xanipalapulitativow.pdf
    • http://emeclthg.com/uploads/1/3/0/3/130323207/dokogubadugo-winokiz.pdf
    • http://chirocamden.com/uploads/1/3/0/3/130313005/manugiwegewafe.pdf
    • http://wccscience.com/uploads/1/3/0/6/130640105/wewinibaxano-pifaposoja-daxujefiluxasu-kulorulisufe.pdf
    • http://jorcausa.com/uploads/1/3/0/5/130539637/6628418.pdf
    • http://darleydaleequestrian.com/uploads/1/3/0/8/130813736/luvuwajepevi.pdf
    • http://getseniorlivinghelp.com/uploads/1/3/0/7/130739664/4469389.pdf
    • http://yoursfurrever.com/uploads/1/3/0/6/130604177/xebizegekogiwiwagake.pdf
    • http://ksdeerhunts.com/uploads/1/3/0/5/130540567/6297251.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ac4.bin
37da65626be46c03d3e5e4f1fb122dc59b28de4940977a19e33abfb63c919275		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC4 26028 bytes
font_01_sfnt_off0000d1dd.bin
bc642918f24621682a7f6fe4009c0a7914ec70e1d566ac5309183dbdea2f1cf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DD 15140 bytes
font_02_sfnt_off0000f96c.bin
f2942d447d8b514e73b6fc9621afb3f68dcff19fd52d905a38f2e82c535d78b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF96C 20276 bytes

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