Malicious PDF — malware analysis report

Static analysis result for SHA-256 29407bc338c5e686…

MALICIOUS

PDF

69.8 KB Created: 2020-08-10 10:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a4bb599d5a6f974c99e6d0602662896 SHA-1: ff82bf6bab95d01c8e2732cc36d907e8c65e16a6 SHA-256: 29407bc338c5e686ec7b37becf35ea795dd7b3524979f2b44e47458eef38a2ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aristotle+nicomachean+ethics+book+8+pdf'. This indicates the document's primary purpose is to trick the user into visiting this malicious URL. The PDF also contains a link farm heuristic, suggesting it's part of a larger SEO poisoning or spam campaign. No scripts were extracted, and the document body is heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.cc/pify?keyword=aristotle+nicomachean+ethics+book+8+pdf In PDF document text
    • http://files.spiritualgypsysoul.com/uploads/1/3/2/6/132681617/rarexared-supiwe.pdfIn PDF document text
    • http://files.madart-studios.com/uploads/1/3/2/6/132680852/353034.pdfIn PDF document text
    • http://files.cedarscapesllc.com/uploads/1/3/1/4/131409794/xararene-tolijopugo-kefokesifef-xevevutipa.pdfIn PDF document text
    • http://files.bluebirchoutfitters.com/uploads/1/3/1/3/131379439/tekelepiroragamek.pdfIn PDF document text
    • http://files.tomdangofficial.com/uploads/1/3/0/7/130775429/xawanomonije_lijal_dunafudidok.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/gizizositapafaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6392/7206/files/nobijuwuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5766/7487/files/skf_thrust_ball_bearing_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/waxewowidapaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1909/8522/files/11996108321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0421/3917/files/the_canterville_ghost.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1276/3298/files/adobe_flash_professional_cs6_serial_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nisej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2266/0263/files/mini_budget_2020_19_pakistan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/curriculum_and_material_development_in_english_language_teaching.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9108/6750/files/affairs_cloud_current_affairs_march_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/blood_knot_athol_fugard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1026/9085/files/99296278304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1080/9256/files/55473035090.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41D 5780 bytes
SHA-256: 9f3a827b34d8c424e4406cab78d8aac542b604868545fc0b951c97a6a75c82a2
font_01_sfnt_off0000e79a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE79A 9868 bytes
SHA-256: 939c3fdb5f6b292ba60fc3c3efc1af6538f0a25d118512fe0c086ed83cceb0de