Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f559fccb3a009a…

MALICIOUS

PDF

68.4 KB Created: 2020-08-07 02:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ded677a63c90601be4bd428bceea70d SHA-1: 5c9a64acccf5d62bf25e62508de8f1eaa6e90bbe SHA-256: 30f559fccb3a009a2b1a9ba7f513f78cc7c5a046b0adf5c0c2e29d1f38620b40
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=journal+bryophytes+pdf'. This URL is embedded within the document's body, disguised as a journal title. The presence of numerous other external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. The ML classifier also strongly flagged this PDF as malicious.

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=journal+bryophytes+pdf In PDF document text
    • http://files.hollygunn.com/uploads/1/3/1/6/131606968/gaxowes.pdfIn PDF document text
    • http://xavulaxi.jasonmeek.com/uploads/1/3/1/4/131483254/tiwanonifapolus_gutet.pdfIn PDF document text
    • http://files.tanooklings.com/uploads/1/3/0/8/130874030/nofujefiludonavog.pdfIn PDF document text
    • http://files.silverstreetlutheranchurch.com/uploads/1/3/1/3/131398268/losot.pdfIn PDF document text
    • http://files.herrimanhighchoirs.org/uploads/1/3/1/3/131398164/63cab2e.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/1/0432/8564/3420/files/74624546989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6756/3418/files/36818099453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/cub_cadet_service_manual_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4425/7442/files/litesurafiwevarotez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/57086410134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3671/0824/files/gipinuxabodoxojoxodikojaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/25026278204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3993/8970/files/56139759288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/sobegidoxagovugebowuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40814320730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/22628839270.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_off0000cd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD84 5360 bytes
SHA-256: 031b1e4fabc3306103d228585a6760264b90e244366b2f1b1bbb52d916892045
font_01_sfnt_off0000dfb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB8 10676 bytes
SHA-256: 5a425531cfd02ca0e855bd170396aa0b7d1b478862179eb3bc3c4c96b96a014f

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