Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ee8664471d5803…

MALICIOUS

PDF

42.5 KB Created: 2020-08-11 21:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 317c5b7fe88de8abe29ed5eac5d83107 SHA-1: 6e131c7bb9d2e5be1ea8172e1aa2f9558c63c4a6 SHA-256: 97ee8664471d5803b0e0aba825ab50c0f60a1b65dfbf05c152efdd756a411984
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF SEO link farm, embedding numerous external links. The primary malicious URL identified is https://ttraff.com/pify?keyword=fafsa+en+espa%25C3%25B1ol+pdf, which is likely used to redirect users to further 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=fafsa+en+espa%25C3%25B1ol+pdf In PDF document text
    • http://files.medgaming.com/uploads/1/3/2/3/132303151/pekanaxobitiloz.pdfIn PDF document text
    • http://files.brookesummers.blog/uploads/1/3/0/9/130968996/zolanax.pdfIn PDF document text
    • http://files.ethanhamby.com/uploads/1/3/1/0/131070604/e400607bf54e4f.pdfIn PDF document text
    • http://nuniv.charlestonteacheralliance.com/uploads/1/3/1/3/131381464/waxap-kunexofupubuke-kuliterejajuvem.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/1/0436/5592/1822/files/zunowibupigakuwej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/cadences_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2324/files/utero_bicorne_unicervical.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/32581568349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5108/files/cengage_physics_for_neet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4463/3756/files/53568845559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/majobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/cahiers_pour_l_analyse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/xuvitalaniburikaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6190/7351/files/breaking_into_wall_street_private_equity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/kuvewavetazikuziri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0846/5828/files/60776719047.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_off00006653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 5104 bytes
SHA-256: fa8b937436f4fcbc7062ef48011c8cffd0fc4d55327423dfec631db311e8d1ce
font_01_sfnt_off00007780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7780 10828 bytes
SHA-256: 0120bbaae5e0f3fdff71e6eb5354c0c3888c5938243f09a3fd469552f0f4cbeb

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