Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecaaeb1af6b019eb…

MALICIOUS

PDF

41.1 KB Created: 2020-08-10 22:41:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72554b860fad3ccaff581b596f6bb548 SHA-1: faa5dd5737b7a00b95503b46aad5f344e2af9476 SHA-256: ecaaeb1af6b019ebf6f10aa3ce00338a5804825386d308d03996ac41a51062d1
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=printer+brother+mfc+j2330dw+pdf'. This URL is embedded within the document body, suggesting an attempt to lure the user into clicking it. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the primary malicious activity appears to be redirection via the embedded URL.

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=printer+brother+mfc+j2330dw+pdf In PDF document text
    • http://files.jaredjaggers.com/uploads/1/3/2/7/132740214/05636.pdfIn PDF document text
    • http://files.rubbosaltshop.com/uploads/1/3/2/6/132682585/jetafajedidodid_bevidotedajeki_nalisitaw_tekajelejezul.pdfIn PDF document text
    • http://files.longosfinancialmarket.com/uploads/1/3/1/3/131398338/boboku.pdfIn PDF document text
    • http://files.redcoaching.co.uk/uploads/1/3/0/8/130874160/dopofurapozusi_nalodogezin.pdfIn PDF document text
    • http://ritovipi.toriseabovepoverty.com/uploads/1/3/1/3/131380480/sozoz.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/1/0431/0591/0935/files/rise_of_the_guardians_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6385/9617/files/nomenclature_of_alcohols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/papuwiramedurugopuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5180/3033/files/6617235000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/47099084905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/5928443033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/aptitude_topics_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/78511438640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3170/5238/files/12_fruits_of_the_holy_spirit_and_their_meanings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3761/3461/files/38168602172.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_off00005be6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE6 5720 bytes
SHA-256: e558b07bd69c54cf5d099721cc6d191974fd873f3592dcc21e5b582660113468
font_01_sfnt_off00006f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3E 12612 bytes
SHA-256: c5141cd694d083cbfee7f389c7c181c08f72522af63400bd22d53d1b5481ef80

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