Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6863e9f7a82d5e…

MALICIOUS

PDF

39.7 KB Created: 2020-03-29 05:41:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 67247c7518a480652eaa6e9a1ead7643 SHA-1: 486017770aec79bcc5da50b0c713e94c1d490361 SHA-256: be6863e9f7a82d5ee1ad9debc34fec6f01baba474f5d28775ddb2e8b5480bb21
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting it is part of a link farm or SEO manipulation scheme. The document body, though partially corrupted, contains text related to 'Poemas cortos de amor para jovenes' and references wkhtmltopdf, indicating a deceptive lure. The primary attack pattern involves redirecting users to a network of external websites, likely for malicious advertising or to host further malicious content.

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://74-123-79-231.mgwnet.com/uploads/1/3/0/7/130775871/130775871.html#poemas+cortos+de+amor+para+jovenes
    • http://stealthlaptops.com/uploads/1/3/0/2/130270958/f44ef83.pdf
    • http://usedcarsfortrade.com/uploads/1/3/0/5/130551445/mufuzavezegitigewav.pdf
    • http://www.myclarendonhills.com/uploads/1/3/0/2/130289592/kezareziv_jobegowot_sufupe_ragaxaf.pdf
    • http://axedideelyingent.space/uploads/1/3/0/4/130483986/1992238.pdf
    • http://skincredible.net/uploads/1/3/0/5/130590180/6358494.pdf
    • http://integrityinsadvisors.com/uploads/1/3/0/5/130588625/4ba209a67dc4.pdf
    • http://tm-llp.co.uk/uploads/1/3/0/9/130969052/806ddbb188.pdf
    • http://savagetattoos-ak.com/uploads/1/3/0/9/130969865/voditepipefawafog.pdf
    • http://alternativesforlife.org/uploads/1/3/0/7/130739656/werokije.pdf
    • http://desatascosmartorell.com/uploads/1/3/0/6/130640132/memajirox.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eeb.bin
2e23139559c7bfbcd0ac1383aa3eeab4d04e58edc99125d14f0a42007d8faf7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEB 9276 bytes

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