Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb6f48fe04a38594…

MALICIOUS

PDF

55.1 KB Created: 2020-06-14 16:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50666e45f627aa5195f7be8eff4daeca SHA-1: 8a2053efba04effece0968ea045769f50cca3c11 SHA-256: bb6f48fe04a38594e28c45148dca26367ece4383c6d98da5628dcb734a2102ce
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named, indicating a link farm for SEO purposes. The document body, though partially corrupted, contains text related to 'Greek mythology short stories pdf' and the authoring application 'wkhtmltopdf', suggesting a lure to attract clicks. The primary heuristic 'PDF_SEO_LINK_FARM' confirms the malicious intent of generating traffic through a mass of external links.

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://jaffarius.com/uploads/1/3/1/3/131384173/131384173.html#greek+mythology+short+stories+pdf
    • http://jbgerlach.com/uploads/1/3/0/5/130551046/putewijuvalupabebusa.pdf
    • http://clashingmonkey.com/uploads/1/3/0/7/130740522/1333960.pdf
    • http://seislagos.net/uploads/1/3/0/5/130589080/pisuj-mawomobusab-nexaluri-kusuxufibir.pdf
    • http://mx.forebridge.com/uploads/1/3/0/5/130551198/6010900.pdf
    • http://lebanoncheese.store/uploads/1/3/0/6/130621429/gosefufunupef_vakujo_wazoxokiluzajep_wenelawojo.pdf
    • http://roofersinc.com/uploads/1/3/1/8/131856772/mekokumorezoduzunexo.pdf
    • http://keralaexpress.org/uploads/1/3/0/6/130605325/tuvelolu-zuzuzaboraf.pdf
    • http://stephromanoart.com/uploads/1/3/0/2/130288875/673209.pdf
    • http://talking-2.com/uploads/1/3/1/4/131406717/lifuserukupazibu.pdf
    • http://resistefilm.com/uploads/1/3/0/7/130739686/8706780.pdf
    • http://74-123-73-66.mgwnet.com/uploads/1/3/0/7/130775293/6451392.pdf
    • http://stuartolivermusic.com/uploads/1/3/0/9/130969905/881188.pdf
    • https://julaxotetelu73207895.files.wordpress.com/2020/06/wasuf.pdf
    • https://tolalanesizu.files.wordpress.com/2020/06/81596899861.pdf
    • https://lixotudus.files.wordpress.com/2020/06/rarag.pdf
    • https://tojojawexixu.files.wordpress.com/2020/06/19640884516.pdf
    • https://gunusubupele.files.wordpress.com/2020/06/xaxolifexuv.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_off0000aab8.bin
1f74199d4fe1b0e1194a63eff9cba5a871acad1daa84b1a163e40119c46825e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB8 11196 bytes

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