Malicious PDF — malware analysis report

Static analysis result for SHA-256 60adebcdc3cde9a6…

MALICIOUS

PDF

51.9 KB Created: 2020-08-11 23:07:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 933dc30579b1e14123637cbd9ea21f29 SHA-1: df176d98f8e4e2860aea8216977409e95c2352c7 SHA-256: 60adebcdc3cde9a6c4f4840b51a2b77bf834de41b875deaa4a5a4f834b7f3361
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the same URL, suggesting an intent to trick users into clicking it. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.com/pify?keyword=teori+pluralisme+pdf
    • http://files.limelitextreme.com/uploads/1/3/0/8/130814258/kuzusatajukit.pdf
    • http://files.rogerckellygroup.com/uploads/1/3/1/3/131383480/jirova.pdf
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdf
    • http://files.awarechoices.com/uploads/1/3/1/3/131384771/4938061.pdf
    • http://noreni.centraleastwoodrugby.com/uploads/1/3/1/4/131407995/bagok.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/puneberun.pdf
    • https://cdn.shopify.com/s/files/1/0429/3630/3782/files/27650415544.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/dulikaxewonali.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/sportsline_stop_watch.pdf
    • https://cdn.shopify.com/s/files/1/0429/4751/0435/files/guwixegemaveri.pdf
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/rider_waite_tarot_card_meanings.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kipisoluni.pdf
    • https://cdn.shopify.com/s/files/1/0435/3081/3592/files/31278810687.pdf
    • https://cdn.shopify.com/s/files/1/0430/6698/2561/files/gaxijov.pdf
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/90625586193.pdf
    • https://cdn.shopify.com/s/files/1/0435/8995/9839/files/66713734100.pdf
    • https://cdn.shopify.com/s/files/1/0438/5089/1424/files/79859340166.pdf
    • https://cdn.shopify.com/s/files/1/0440/9176/8984/files/rogif.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e78.bin
ca3d1caf10192259b5bcec196ca8f39c71c79f82e2eb48e1be23903dce96c81e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E78 5136 bytes
font_01_sfnt_off00009fd3.bin
5897a4623d2776d0b8bc3c246e7eb91edcbf0f7a8573ad44fa93b566e44aded0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FD3 10188 bytes

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