Malicious PDF — malware analysis report

Static analysis result for SHA-256 051aa645b03517fa…

MALICIOUS

PDF

40.5 KB Created: 2020-08-15 07:18:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f88a700fa90bef2108c182ec80f40196 SHA-1: 91e58be81b85e235d965e368fd8274e9e005c353 SHA-256: 051aa645b03517fae8d4fd1fcb0587f066b20c0b6c1f67bb513a7ff85478aa11
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same lure URL. This suggests a phishing or scam attempt designed to redirect users to malicious content. The presence of many links to Shopify-hosted PDFs, some of which are benign, indicates a potential SEO poisoning or link farm tactic to obscure the malicious redirector.

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/wb?keyword=periodic%20trends%20activity%20pdf In PDF document text
    • http://files.rockypointboatdock.com/uploads/1/3/1/8/131871480/pijoramozaniguf.pdfIn PDF document text
    • http://files.amenfordesign.com/uploads/1/3/1/3/131384713/xozizulokasarabe.pdfIn PDF document text
    • http://pesileb.joereneequest.com/uploads/1/3/2/6/132682587/tovaravegimefo.pdfIn PDF document text
    • http://files.shadyblueamstaffs.com/uploads/1/3/0/7/130740033/penavinifezotewin.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/1/0432/2243/3953/files/guvufedam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6146/8571/files/98747604556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/map_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2161/files/80185381920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/microelectronic_circuits_7th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0884/2152/files/gosutisunifojimivowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/pdf_with_bleed_and_crop_marks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/43219116160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/14607341293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/63572469489.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_off00005fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD0 5280 bytes
SHA-256: 1644493a351e402321129e339b84f798b8bd6a6cd1c15baddbefdbb254ed7722
font_01_sfnt_off000071dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DC 10364 bytes
SHA-256: 44ebc540a6ef2c016c7b75eff851991c68c429818ce6ed3b128fb22a7264cd4f

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