Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a3406f59acf5944…

MALICIOUS

PDF

44.7 KB Created: 2020-08-12 12:41:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b666b1f766dc969157335722e0edf754 SHA-1: 3c7ef014805f5da2f16593f88ba11fe3c25a6041 SHA-256: 3a3406f59acf59444b20ff701b7d2c99bb0f026f8596e3190cf1960d8ba3db32
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 'ttraff.ru'. This URL is embedded within the document body, disguised as a search query for 'good books to read during pregnancy pdf'. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=good+books+to+read+during+pregnancy+pdf In PDF document text
    • http://files.joanletourneau.com/uploads/1/3/0/8/130813827/varovipulofu_gajixir_jigamakutiseg.pdfIn PDF document text
    • http://files.lgstewardship.ca/uploads/1/3/1/3/131380305/9a799113.pdfIn PDF document text
    • http://files.oakcreekzc.org/uploads/1/3/0/7/130739039/jopunukinaj-ranapoxomilan-pupatisifuwap.pdfIn PDF document text
    • http://luriwak.yourlakeforestpark.com/uploads/1/3/1/1/131164250/titufusosagadedad.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/1/0432/4166/8775/files/pitojur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6179/files/editorial_cartooning_tips.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/90307517782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boruxunijutaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4718/9670/files/bambuterapia_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/xekigogopaxidanaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3771/2806/files/amiga_assembly_language_programming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2294/8251/files/zoxutusareto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0214/9540/files/auroville_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1954/files/xuruxipake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5229/3541/files/pharmacy_policy_and_procedure_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lurexemip.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 4

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_off00007086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7086 5628 bytes
SHA-256: 4252409e4d5cacac3652d3dbf40489a83d1caddb62020d62658e947be640b0fc
font_01_sfnt_off000083d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D4 9824 bytes
SHA-256: a201cb2c70403703dc0db40a1cea4458d795b35bac2c750bc475194ef99ac458

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