Malicious PDF — malware analysis report

Static analysis result for SHA-256 03f3c8180d23db2a…

MALICIOUS

PDF

39.1 KB Created: 2020-08-02 11:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f718a9d8712d6481c76ebc82e787a98a SHA-1: c2ace2d11f8fd55cc81b9fc2b578ccbda89f9732 SHA-256: 03f3c8180d23db2a6724bd7c5115c62af25e22b80b3df0836ca490355307bc89
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL, https://ttraff.ru/pify?keyword=walls+fall+out, is directly referenced in the document body and by heuristics. The document's structure and embedded links suggest an attempt to lure users to external sites, likely for phishing or to download 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.ru/pify?keyword=walls+fall+out In PDF document text
    • http://files.lindseyyok.com/uploads/1/3/2/7/132741535/b4b560c1c5c1aca.pdfIn PDF document text
    • http://files.simplycfood.com/uploads/1/3/1/3/131381679/supapinatopowu.pdfIn PDF document text
    • http://files.templeemanuellongbeach.com/uploads/1/3/0/7/130738883/e7a453102ea88.pdfIn PDF document text
    • http://files.fourthelementparanormal.com/uploads/1/3/1/1/131163969/wexokoliso.pdfIn PDF document text
    • https://lybio.netIn 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/1/0431/4667/4337/files/67017204400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7917/2257/files/13936046861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/kufakifobabine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/3858226895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/fewazixusojokotowugiduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/74160754501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7595/3049/files/23831614985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/51811492636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/6240581052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3287/0037/files/sariduxozufibavureratuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/86799131388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/92709116257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/fawidebanego.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_off0000519c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x519C 4680 bytes
SHA-256: c193118d9917d0c9aa4acc95bd81a933d515d7168988c0a963fee90a9d0bc43e
font_01_sfnt_off000061aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AA 14188 bytes
SHA-256: 1bf0cb0eab4d78280ad03f6a7c8713d48cb304a7b4fabc0c55ff660ae1dae50c

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