Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b6cc8030f3061f…

MALICIOUS

PDF

48.7 KB Created: 2020-08-19 00:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b94546a5f946b3b68a539aec993f77dd SHA-1: 8ce534417f5442a72d25039bc8050c2ff8e4de40 SHA-256: 49b6cc8030f3061fe8688f795f8c1766af8be276dbbb73b0ccfa1aff3e15b43c
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with SEO link farms. One prominent link directs to a known malicious redirector, 'ttraff.com', with a keyword suggesting a lure related to medical analysis. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links indicates a potential attempt to distribute further malicious content or engage in SEO abuse for traffic redirection.

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.com/pify?keyword=arterial+blood+pressure+waveform+analysis In PDF document text
    • http://files.radarresearch.com/uploads/1/3/1/6/131606859/vobuju.pdfIn PDF document text
    • http://files.summerlaneborzoi.com/uploads/1/3/0/7/130776218/nulufurotopor.pdfIn PDF document text
    • http://files.aerialmediavisions.com/uploads/1/3/1/0/131070476/xelalopixorugawi.pdfIn PDF document text
    • http://tugowow.restaurantcleaning.org/uploads/1/3/1/3/131384226/a1337.pdfIn PDF document text
    • http://files.bensawyermusic.co.uk/uploads/1/3/2/7/132740218/kelupotamevivok.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/1/0432/8521/7436/files/carbothane_134_hg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/2806616916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3624/4118/files/black_desert_mobile_sea.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9741/files/cablevision_altice_information_channel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4170/8437/files/wewevajijuxani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/cambridge_pet_writing_part_1_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/71799463472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9990/5429/files/zovigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wofizafadunemewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6867/files/install_sierra_on_virtualbox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.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_off000080f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80F3 5572 bytes
SHA-256: 3c5599cc8508f41aa77e21c650800c52705ce713b6085ce0681f9a120b2bb8f8
font_01_sfnt_off000093d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D6 9860 bytes
SHA-256: db438eaf4e89238e9746a9e58c3db3b24b5ba377f0ddfcfcd17d6155766e0f32

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