Malicious PDF — malware analysis report

Static analysis result for SHA-256 e35a64c0a5f2b486…

MALICIOUS

PDF

16.6 KB Created: 2020-10-24 02:11:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a9a8c560a2298f14f4d7f2756b2e5c6d SHA-1: cf0d7af540858c67ba23928865d26c6c4857edb4 SHA-256: e35a64c0a5f2b486aff5b294d4368d3f88cadf4036a63b1c0b295158dc455793
212 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs an image-based lure, presenting itself as a 'Certificado medico dif formato pdf' to entice users. It contains a critical malicious redirector link to 'https://ttraff.club/aws?keyword=certificado+medico+dif+formato+pdf', which is likely used to deliver a secondary payload or phish for credentials. The document also features a link farm of 23 external PDF links, many pointing to Shopify, suggesting an attempt to manipulate search engine results or distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 16 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.club/aws?keyword=certificado+medico+dif+formato+pdf In PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4045700.pdfIn PDF document text
    • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/muruwuximusovid.pdfIn PDF document text
    • https://terarawuterojuz.weebly.com/uploads/1/3/0/7/130739827/63d8addbf5c776.pdfIn PDF document text
    • https://nudopimiga.weebly.com/uploads/1/3/1/0/131070212/zobofixumal.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sezebe.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/pogobigodeloxilipoza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373788/normal_5f91977a3d60a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384048/normal_5f8e50c6069a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373240/normal_5f8aa020eff1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377379/normal_5f8ffd92d65c0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8980/5983/files/how_to_use_minion_dematerializer_ahri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4018/files/79130085707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/9852/7638/files/vonau_flash_4mg_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/glycopyrrolate_davis_drug_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8050/6773/files/12598028708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1819/0489/files/nisemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/23305093437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/8523/2811/files/45384628813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9479/files/xopefuxilefapojuzadelux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4922/1286/files/wps_wpa_tester_android_app.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/41911910605.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/alternative_investment_real_estate.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/bhagavad_gita_english_archive.pdfIn PDF document text

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