Malicious PDF — malware analysis report

Static analysis result for SHA-256 71e926aaa9709adc…

MALICIOUS

PDF

34.4 KB Created: 2020-08-03 14:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb5fc4d636f18d078979edfad83facb7 SHA-1: 050f7519f5f6c57ec6b4fe539a19c9a607157192 SHA-256: 71e926aaa9709adc945a9f7e1f42fd644d2204174b8d8aa1d767db2fe65f9ee6
194 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many pointing to Shopify-hosted PDFs, suggesting a link farm designed for SEO manipulation. One prominent link, https://ttraff.cc/pify?keyword=cambridge+english+proficiency+2+answers+pdf, is identified as a malicious redirector, likely leading to a phishing or malware download page. The document body, though obfuscated, also contains this URL, reinforcing its malicious intent.

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.cc/pify?keyword=cambridge+english+proficiency+2+answers+pdf In PDF document text
    • http://files.horizondrivereducation.com/uploads/1/3/0/8/130874257/02f8f1fb706e0.pdfIn PDF document text
    • http://files.holisticimpactfoundation.org/uploads/1/3/0/7/130739480/tolosidimamirol.pdfIn PDF document text
    • http://files.enjoylivingabroad.com/uploads/1/3/1/3/131379356/186b78.pdfIn PDF document text
    • http://files.delaneyswiftart.com/uploads/1/3/1/4/131453598/6df31149.pdfIn PDF document text
    • http://files.firstpresperry.org/uploads/1/3/1/4/131407080/2414401.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/1/0432/5277/7128/files/bobugatemirebofojax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/26878471677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0624/5534/files/sujesolanulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1909/2647/files/59010096467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4381/4560/files/25012493861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6834/files/jumetifuwitobiboxijemufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/dafot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/gawozudunimejatiwika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4744/4899/files/ravimimiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/lupekerowowedidugalokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/mijesafepulo.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
🗂 Part of campaign: holisticimpactfoundation.org 5 samples

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_off00004953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4953 5940 bytes
SHA-256: 801b4c9149442285499f0d03d12f5076547af515a65bbfaf4d20336c71dfd8fd
font_01_sfnt_off00005d6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6C 9236 bytes
SHA-256: 8b7215343efb1a6430e1139a05cf3985de3b53946c82889eb40bcbeea6745dec

Open this report in the interactive analyzer, or submit your own file for analysis.