Malicious PDF — malware analysis report

Static analysis result for SHA-256 040ee0cc5b42941f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-11 05:32:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8413421037d7504fdd2c4e1f7528b90 SHA-1: 3f39156a0cd5530200d176d3a6ccae255b3ede02 SHA-256: 040ee0cc5b42941faa88460d44d162e990cb52beef1c2dc334025aee579740f2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to an SEO redirector service (ttraff.ru) that is flagged as malicious. The document body, though obfuscated, also contains the primary malicious URL. This indicates a likely phishing or scam attempt using a link farm to distribute malicious content, masquerading as legitimate downloads.

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/wb?keyword=conventional%20energy%20and%20non%20conventional%20energy%20pdf In PDF document text
    • http://files.flyhiluv.com/uploads/1/3/0/7/130776791/725074.pdfIn PDF document text
    • http://files.amcbride.org/uploads/1/3/1/3/131398338/7edae374ab1bd.pdfIn PDF document text
    • http://tufudogu.tymprojects.site/uploads/1/3/1/8/131871478/sukomiwevabosuropa.pdfIn PDF document text
    • http://lekodo.michiganburgerboys.com/uploads/1/3/0/8/130814161/poxup.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/1/0435/3651/5224/files/obesidad_bulimia_y_anorexia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3415/4907/files/como_fazer_referencia_bibliografica_de_site_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/panera_bread_catering_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5384/files/alimentation_saine_recette.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2118/4674/files/41109427117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/fipetenatelekivudupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/losewubolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kekiwimuzavenomudajelibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/kananinevegos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/vocabulary_words_english_learn_with_meaning_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/zinakinege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2801/3471/files/el_atravesado_andres_caicedo_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/74861801861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9471/9131/files/40877073798.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_off000065a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A6 5212 bytes
SHA-256: 9e54c2b28eaf9e754e99ac6cff5a1fb3dfaa085a8f11ef5e06a22c028cfabb08
font_01_sfnt_off00007780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7780 10468 bytes
SHA-256: 8ea625adc9fb11523684129480fdd41ea40f5663a26e5792cfaaf1f01f8ceaf9

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