Malicious PDF — malware analysis report

Static analysis result for SHA-256 222da1d15561c1ca…

MALICIOUS

PDF

43.9 KB Created: 2020-08-18 23:23:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f2a9d6db7734744be3b946e495bba9b SHA-1: 192c9d7c8fc8ab6d39020457049705d782900eea SHA-256: 222da1d15561c1cadab795613717e61b478cf2e62bcc184939963abd84d24084
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One of the embedded URLs, https://ttraff.ru/pify?keyword=les+aliments+riches+en+fibres+pdf, is identified as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to disguise the malicious intent. No scripts were extracted, but the primary attack vector appears to be the malicious redirection via embedded links.

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=les+aliments+riches+en+fibres+pdf In PDF document text
    • http://files.tilleyrent.com/uploads/1/3/1/3/131379110/448810.pdfIn PDF document text
    • http://soxotataw.bulldogsread.com.au/uploads/1/3/1/6/131636813/50c17.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/1/0433/9063/2101/files/anchor_bolt_standard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5480/7717/files/the_jaunt_stephen_king.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9979/0237/files/ielts_academic_writing_task_1_samples_with_answers_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/68104550676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9649/6544/files/pronunciation_tips_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3215/6059/files/83126035612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/physiology_of_pregnancy_and_lactation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/43797202167.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 2

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_off000069aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69AA 5476 bytes
SHA-256: b890bc2b662513c2aa479c32aff2f82e264ca42e636944af814c1baf25816eb1
font_01_sfnt_off00007c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0D 11876 bytes
SHA-256: 54674998cc1aacea6dd485f646870ad797f656a8e257894c8ec40d55d707b990

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