Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c29ab6c70f1497e…

MALICIOUS

PDF

51.6 KB Created: 2020-08-20 13:27:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9eb2f41f0829750f7f04ec0c9072908 SHA-1: 3962abcd4f348398f6588a244fe5f0ab84b06d78 SHA-256: 0c29ab6c70f1497e2203e848154dbeab3579e3f139994a379b86994323963427
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. This suggests a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites. The ML classifier strongly supports the malicious verdict.

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=jung+dreams+memories+and+reflections+pdf In PDF document text
    • http://files.rmpcg.org/uploads/1/3/0/8/130813108/borinofuj.pdfIn PDF document text
    • http://files.jessica-elainephotography.com/uploads/1/3/0/7/130776791/kenopefutijive.pdfIn PDF document text
    • http://files.nbptwedding.com/uploads/1/3/0/8/130813546/tetuz-rewiwowut.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/1/0434/3955/4727/files/93002638758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6605/files/les_limites_des_institutions_de_bretton_woods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7509/2132/files/sipolituxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9575/files/algebra_2_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1687/0296/files/14673279767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1975/3879/files/english_test_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/83413573209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/zumikazefetowoserafijewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/50955366378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23281911610.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 1

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_off00008c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C5B 5464 bytes
SHA-256: 8113eaef1451abb7d17e7a5f1fb62e466bc90b0bcd132be440d497137186bc80
font_01_sfnt_off00009ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ED5 10120 bytes
SHA-256: 59e172c1f83ab194a87939277469acdf2ddf6034ee7cace05da546cb2c765298

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