Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c9d0f362156369b…

MALICIOUS

PDF

71.9 KB Created: 2020-08-21 12:33:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc5a1a6c2fa3010807ab27fb0edebb5b SHA-1: 52842517de5a4dd64baf7f2c11f2c826faa1091e SHA-256: 6c9d0f362156369b52379a6506f52a837066a9d0137704ea352bb6dad304744f
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as free study materials, but they redirect to a malicious domain (ttraff.com). This indicates a phishing or scam attempt, likely using a spearphishing attachment vector. The ML classifier strongly supports the malicious nature of the PDF.

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=nclex+midwifery+questions+and+answers+pdf In PDF document text
    • http://files.runningfatchef.com/uploads/1/3/0/7/130776277/fufojune.pdfIn PDF document text
    • http://toronifot.beautifuljourneybirthservices.com/uploads/1/3/1/4/131407552/gebakuv-bajepigexovut.pdfIn PDF document text
    • http://vipufibuw.nicolejamesphoto.com/uploads/1/3/0/7/130738943/vujaluwarimubu_jusov_kefixoxeja.pdfIn PDF document text
    • http://fokopirab.65rosesracing.org/uploads/1/3/1/4/131482992/3121625.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/1/0436/3314/8062/files/56507654126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1376/6293/files/95560464513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7881/8715/files/faxebunazapigasisitij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/35834534489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/player_owned_ports_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4429/5076/files/knee_meniscus_tear_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/beatless_light_novel_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/beechcraft_king_air_200_poh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0960/5541/files/61784264767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0446/0188/files/green_belt_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/49616941626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8472/files/jaradisodixukogiduga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3511/files/59442973560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8512/2984/files/meeseva_sc_caste_application_form.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 3

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_off0000d7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E4 5656 bytes
SHA-256: cadb9660ce4ea5c11918a50cd401e5db93bc79c7666ab5b66dd717eadf891c52
font_01_sfnt_off0000eb27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB27 12000 bytes
SHA-256: 8f0ef89256e52a4c3ec32666581093989fc0c1cecce676808a4f01e2467a29d0

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