Malicious PDF — malware analysis report

Static analysis result for SHA-256 74842f1a04eb4aca…

MALICIOUS

PDF

33.9 KB Created: 2020-08-07 08:51:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b42b6e75ea1c1d31ccdf8ae1b887ffd SHA-1: 6a4e38594afd0bd7d7c73959962687fb777ad8a8 SHA-256: 74842f1a04eb4acaa2a7dee2a3605bf0b43fb14883378bd130d9f8bc24a00841
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to a malicious infrastructure. The primary redirector URL is `https://ttraff.ru/pify?keyword=advanced+medical+life+support+pdf+download`, which is flagged as malicious. This pattern suggests a phishing or scam attempt to direct users to harmful content.

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.ru/pify?keyword=advanced+medical+life+support+pdf+download In PDF document text
    • http://files.harrietslaughter.net/uploads/1/3/0/8/130813921/812699.pdfIn PDF document text
    • http://files.jenkinsreidfamily.com/uploads/1/3/1/4/131437308/2b1d987a1e28a8b.pdfIn PDF document text
    • http://files.college-boundcoachesnetwork.com/uploads/1/3/1/3/131383837/5314345.pdfIn PDF document text
    • http://files.lesdamesontario.org/uploads/1/3/1/3/131379343/d82017427a94039.pdfIn PDF document text
    • http://files.americanmelodrama.com/uploads/1/3/2/6/132696274/xiset-pegixa.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/1/0431/1816/6167/files/ligeramente_peligroso_mary_balogh_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0924/files/gujeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/gotamexoxupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/10334474083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/basic_english_tests.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9279/4774/files/archaeologies_of_the_future.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/mizirozobujovojabinada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9605/3662/files/kafamozaduxekuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6310/5953/files/turn_off_avast_notifications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/govelovizipagadisob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/clasificacion_de_los_actos_administrativos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/65223477801.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_off00004640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4640 5440 bytes
SHA-256: fd67635626a0fc7dc9c3e82180f1498db6f9d6f9a30a1a9c9fa5362205e4e49d
font_01_sfnt_off000058c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C7 9472 bytes
SHA-256: 4ed7508aec0a253e54788a93dcc7ea6e3dd50dd17bd6a5de586748937690f3f8

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