Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2361dbc219cb2ca…

MALICIOUS

PDF

59.1 KB Created: 2020-08-06 05:38:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0abe2caff187314614bc306198f36f9 SHA-1: 17c4067e6bbdb85f882d1a748acf17b21eff5bc3 SHA-256: c2361dbc219cb2ca7079fce36b86d640cedcc1194689941e7002557fca69a038
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=a+level+physical+chemistry+notes+pdf'. This URL is presented within the document body, suggesting a social engineering lure. The presence of a PDF link farm heuristic further indicates malicious intent to distribute links. The ML classifier also strongly flagged this PDF as malicious.

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=a+level+physical+chemistry+notes+pdf In PDF document text
    • http://files.claytonguy.com/uploads/1/3/0/7/130739517/1de1fd00a.pdfIn PDF document text
    • http://files.transcend-ed.com/uploads/1/3/0/9/130968926/turir-dekabojov-jexiv-rexajuxe.pdfIn PDF document text
    • http://files.laurasbeadedtreasures.com/uploads/1/3/1/1/131164424/2391580.pdfIn PDF document text
    • http://zikoxupu.httymd.com/uploads/1/3/1/8/131857920/rijelupirewipake.pdfIn PDF document text
    • http://files.tuscanrenaissanceacademy.com/uploads/1/3/2/8/132815298/1899633.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/1/0432/2135/2606/files/bavodejodov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0497/7564/files/sarowazubari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/lefumakamosuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8018/8058/files/pokemon_trainer_sprite_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/98080959494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5185/0647/files/calibration_of_pressure_gauge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/27603791633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67641838088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0803/1893/files/buronikulomevijanowof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0862/0701/files/zagixifofepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8341/4169/files/rutivizavuzonazukira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7932/0223/files/jspdf_autotable_columnstyles_width.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7D2 5548 bytes
SHA-256: f7682804db6bc00abc5030f4f421dd9e80ea611255ce4e29cea7e6beff5f877c
font_01_sfnt_off0000ba93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA93 10668 bytes
SHA-256: f4327c937b09a548ecd6cba00c4699c7f745c195b34f0f8937e85ad3fdd77896

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