Malicious PDF — malware analysis report

Static analysis result for SHA-256 696a2c3e0801f5e1…

MALICIOUS

PDF

36.3 KB Created: 2020-08-24 13:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd8465307b03e4173f66180320505713 SHA-1: f731b51e6d3bc4b530a750dadc42b85f3a3b20cf SHA-256: 696a2c3e0801f5e1fb91990ae595ce59ecb005ab7f98d027d8972d752dc9c0dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The ML classifier strongly indicated maliciousness. The embedded URL 'https://ttraff.ru/pify?keyword=marvel+avengers+alliance+redux+alpha+5' is a primary indicator of the malicious redirection attempt.

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.ru/pify?keyword=marvel+avengers+alliance+redux+alpha+5 In PDF document text
    • http://files.seanbeaudoin.com/uploads/1/3/0/8/130815213/1017829.pdfIn PDF document text
    • http://redom.ipksportsbetting.com/uploads/1/3/1/8/131857252/xulubafude_fowiwu_sowelorujigeb_kamagigo.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/1/0438/6160/6550/files/punavudewadaxozegarikutob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/34945464334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mipubafuminidumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/distributive_property_algebra_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2076/3804/files/sipebori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6357/2635/files/ririxigazuzajulejivesupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7331/5740/files/86602782623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/disney_blockbusters_flute_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/chowka_kannada_full_movie_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5062/3385/files/perimeter_and_area_worksheets_grade_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3650/6272/files/pokemon_x_and_y_pokedex_book.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 7

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_off00004f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3F 5592 bytes
SHA-256: 62c26495a9fdb803c367a6b4527965b7cb9225319c29df924a8b3d1e4b242c8e
font_01_sfnt_off0000624c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624C 9888 bytes
SHA-256: af8803d3efcd4b94afbba35b57df9d1320a421288e2f7a749bfe6ab03a663a05

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