Malicious PDF — malware analysis report

Static analysis result for SHA-256 714c0d36503ce3a6…

MALICIOUS

PDF

40.1 KB Created: 2020-08-09 20:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00c9afad2cd6bccb5236c60744c73082 SHA-1: 9e17d5207e9e003f572c28a15fd97919308a83b4 SHA-256: 714c0d36503ce3a6b61d782280597988abc27f1b79dca5bf15e5ce409494b7a9
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The primary redirector URL, https://ttraff.com/pify?keyword=active+passive+voice+exercises+pdf+with+answers, is used to lure victims with the promise of educational content. The ML classifier strongly indicates maliciousness, and the PDF structure suggests a link farm for SEO manipulation, likely to distribute malware or phishing 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=active+passive+voice+exercises+pdf+with+answers In PDF document text
    • http://files.jacquilhershberger.com/uploads/1/3/0/7/130739202/1819899.pdfIn PDF document text
    • http://files.elainedodgecopy.com/uploads/1/3/1/4/131438111/koxega_xudanozi_kivafopobif_rosawuk.pdfIn PDF document text
    • http://files.rachellynncory.com/uploads/1/3/1/4/131453302/4b5f806790a92e.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/1/0430/6649/1042/files/likovijejuvupirezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9085/files/nadabedinumad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9141/8518/files/rezesiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuwizesovipijekugufex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/annus_mirabilis_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2759/3376/files/manual_de_robotica_para_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/nupexurimipudasev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/logical_interview_questions_and_answers_for_freshers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/axiology_in_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/17381654590.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 1

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_off00005dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCC 5420 bytes
SHA-256: 28a6af19ff7d21cd53a0b66decb6f3a938c1f0b533a2b7c54e1236f993dc98e0
font_01_sfnt_off00007052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7052 10392 bytes
SHA-256: fb7baf7699a53623e20cbf4cc95081ddd08b38dc2154c915c78b9edf36b8c11b

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