Malicious PDF — malware analysis report

Static analysis result for SHA-256 27de4b97ffc7f6ff…

MALICIOUS

PDF

36.7 KB Created: 2020-08-24 11:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c1d3ec2ab7389478ea40326c61fb56a SHA-1: 7a2a99cb4a24becd3a29c74ca4f772cde403673d SHA-256: 27de4b97ffc7f6ff732c8b2c99aec25a193e398448cde2c6e7e47f30bd696861
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.com/pify?keyword=bed+bath+and+beyond+sheets+nz'. This URL is designed to redirect users to potentially harmful content. The document also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. 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.com/pify?keyword=bed+bath+and+beyond+sheets+nz In PDF document text
    • http://files.claytonbrowneortho.com/uploads/1/3/1/4/131410662/dufitarobodupivagoru.pdfIn PDF document text
    • http://files.ladydragonslax.com/uploads/1/3/0/8/130873833/8db5618aa5.pdfIn PDF document text
    • http://files.robynstarfield.com/uploads/1/3/0/7/130738615/bumajiberusiw_xebedupu_nosejutojox_sopevaliwus.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/1/0434/8972/2534/files/alligation_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6004/3682/files/3431422264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9815/2866/files/aws_elb_vs_alb_performance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/68357421793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/adding_and_subtracting_fractions_interactive_notebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3097/files/80848856323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/3684822355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/zoboresumasabiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/fejaxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6503/0309/files/hollywood_thriller_movies_tamil_dubbed.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 5

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_off0000513d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513D 5124 bytes
SHA-256: e8bde0806d7670b99c3da0f0d55bb4d1ef4f30b578c38268b54842c0099560c1
font_01_sfnt_off000062b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B2 10548 bytes
SHA-256: 7203abfc30b4bb000384d2e8db0fad8773d50e5af6e8741b383406557977b868

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