Malicious PDF — malware analysis report

Static analysis result for SHA-256 7826f29410719af2…

MALICIOUS

PDF

41.6 KB Created: 2020-08-05 01:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 360b8f2f4e45e4d083702aaf3f8c95f6 SHA-1: 5319d75dcd21858c6e1382ef96c93bb58e74fc33 SHA-256: 7826f29410719af2d34fa75b8a0cc2ac4c66b1806c08322e9f3ded96880552f7
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically `https://ttraff.com/pify?keyword=tipos+de+cancer+de+mama+pdf+2020`. The document body and heuristics indicate a lure to download further content, likely a payload, disguised as a legitimate PDF. The presence of numerous external links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious 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.com/pify?keyword=tipos+de+cancer+de+mama+pdf+2020 In PDF document text
    • http://files.resonant-bodywork.com/uploads/1/3/1/6/131606260/745258.pdfIn PDF document text
    • http://files.newelhunterart.com/uploads/1/3/0/7/130775033/dofosupiri_dejareviferos.pdfIn PDF document text
    • http://files.tcmattsandsons.com/uploads/1/3/1/6/131606453/wutukopapi-delasukuwavej-woxavebuwa-xazosomitu.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/1/0428/3092/1894/files/57861807904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/bajap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/70925052636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/human_body_systems_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/45938478517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/66277685211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6662/2105/files/pokepilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/tenokilukoxupazigurusubuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3302/files/80583010626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/mejubenanobed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5848/6678/files/xiverobasipumuf.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_off00006258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6258 5492 bytes
SHA-256: 4e7aad2037bf61df27835fed0c2248133802e1c5eb93c41ec343f00a81ba4235
font_01_sfnt_off000074ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EE 10852 bytes
SHA-256: a2f901d993aeb95914da245cbf3bd3bc41b2021827e85a96b7ce8e47bdeefffa

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