Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c74c2868cfb4d7e…

MALICIOUS

PDF

47.1 KB Created: 2020-08-05 23:44:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10874b3306d138b4dd3faec15107de42 SHA-1: e52d774df5a040527455544c144999690861634b SHA-256: 5c74c2868cfb4d7ecc92f70946c016fbc6408c95fda6db8d561afa6070becc0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'hero bike parts price list pdf'. The primary malicious URL identified is https://ttraff.ru/pify?keyword=hero+bike+parts+price+list+pdf, which is flagged as a malicious redirector. The presence of numerous external PDF links also indicates a link farm, likely for SEO manipulation to distribute 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.ru/pify?keyword=hero+bike+parts+price+list+pdf In PDF document text
    • http://files.hillsideswimteam.com/uploads/1/3/0/7/130776661/mirumexafarozelerisu.pdfIn PDF document text
    • http://files.regencyflats.com/uploads/1/3/1/4/131453031/2320508.pdfIn PDF document text
    • http://files.duanebrownlaw.com/uploads/1/3/1/4/131483253/2887604.pdfIn PDF document text
    • http://files.perthbiblechurch.com/uploads/1/3/1/4/131437948/fa016c0f62b226.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/1/0434/3080/5671/files/ragemujof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/letters_from_an_astrophysicist_neil_degrasse_tyson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6455/files/pojusagawanavuwavaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/segeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1672/2331/files/gevedefabemusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/76787552896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2279/0305/files/accounting_and_finance_for_bankers_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97242885008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/duzisimubuxasenebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/liwolefujukejuzanumib.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_off00007055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7055 5316 bytes
SHA-256: 47dae5e1bd21941312908473fae15af85b38eb35ef0b2fa089a3eb3cbb02a516
font_01_sfnt_off0000826b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x826B 14628 bytes
SHA-256: 0eeabf15bec75ab4c405c491fc46fec5e26202eaf010366f16f65c1eeb019a78

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