Malicious PDF — malware analysis report

Static analysis result for SHA-256 742a3e4b855afa48…

MALICIOUS

PDF

87.0 KB Created: 2020-08-05 18:26:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b35c9f7bced9c2f7d9c4d82dda638d53 SHA-1: 2e414ae95e4c1557fd3490606915b2f9c08cb769 SHA-256: 742a3e4b855afa483c7fb6f57fa839ea27ac2909bfcdce1b2f4b78197c05b81e
194 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and a link that redirects to a known malicious URL, indicating a phishing or scam attempt. The presence of numerous external PDF links, many pointing to benign Shopify URLs but originating from a redirector, suggests a link farm designed to manipulate search engine results for malicious purposes. The ML classifier strongly flagged this PDF as malicious.

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=mecanismo+de+a%25C3%25A7%25C3%25A3o+da+ceftriaxona+pdf In PDF document text
    • http://files.lionheart-graphics.com/uploads/1/3/1/4/131406491/tedobekizam.pdfIn PDF document text
    • http://files.itswhereyoubelong.com/uploads/1/3/2/6/132695258/besowinufezelejo.pdfIn PDF document text
    • http://files.theseaba.com/uploads/1/3/1/3/131383575/5147432.pdfIn PDF document text
    • http://files.pofarmersmarket.com/uploads/1/3/0/7/130776887/pupaz.pdfIn PDF document text
    • http://files.faithsphoto.com/uploads/1/3/1/1/131164488/savinuwizu.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/1/0428/3393/6547/files/78894021788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/pueblo_de_puerto_rico_orden_alfabetico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/14419762511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/wezadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/eu4_force_limit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/wubaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonixalekena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2405/1358/files/matplotlib_remove_frame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9279/4774/files/15060419352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/18270618854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0152/0023/files/wisuseredinona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/xafefaterero.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 5

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_off000111b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111B6 5840 bytes
SHA-256: 991695da6e59243ab3490b342fd2effcccadaeb372a0632e4995ec7ed3640c37
font_01_sfnt_off000124b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124B7 13416 bytes
SHA-256: 54a64f48a761079e7604ace7faeddc718b33fbe510abdb531075e3d978569d3c

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