Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3dd1477916492d…

MALICIOUS

PDF

33.7 KB Created: 2020-08-13 16:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0de233e31a69dc16455d03a741e7c1a4 SHA-1: 7a00af5e96f488bea9f02d98bd1287dee928bfc4 SHA-256: 7e3dd1477916492dfd2fe426d210ef25861becb92c73b9a5740114bcd34ef5d4
234 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to redirectors and potentially malicious content, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though partially obfuscated, contains a URL that is also present in the heuristics, suggesting a phishing or scam attempt to lure users to download further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.cc/pify?keyword=causal+analysis+with+panel+data+pdf In PDF document text
    • http://files.dynamicwellnesstherapy.com/uploads/1/3/1/8/131871414/6999769.pdfIn PDF document text
    • http://files.naturalhealthhealinginstituteusa.com/uploads/1/3/0/7/130738870/naguf.pdfIn PDF document text
    • http://feroza.jaysconyers.com/uploads/1/3/1/4/131407815/nazelipop.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/1/0429/7719/8229/files/dizenajegikidoruvix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7519/0430/files/9374694738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/beauty_and_the_beast_2020_movie_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4649/2565/files/52356449093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0981/0327/files/catalogo_vimar_plana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/california_life_science_7th_grade_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4538/8437/files/9763540358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3464/7451/files/puper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/xazopavinajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1703/6198/files/37229761586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2026/3322/files/58666948038.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 4

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_off000045e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E2 5132 bytes
SHA-256: ae33547c22b6a39052690988e792f92ee5dda77c3919c37257f7bca1d6c66a44
font_01_sfnt_off00005771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5771 10156 bytes
SHA-256: e7536cacef009dfc3dae1a1e1e4865d4291422cd65b704692d98e9b54f5fe4fd

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