Malicious PDF — malware analysis report

Static analysis result for SHA-256 217309a014b9dcdb…

MALICIOUS

PDF

61.5 KB Created: 2020-07-30 12:48:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5caedddac2f44723bcc11bbfcf783c45 SHA-1: f9c9c20dddae8c25d1f7de12699d890351349b95 SHA-256: 217309a014b9dcdb108b812a3526d0c509f4aa1e9ee7be5700aec978817cb05c
194 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through a link farm, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary malicious URL identified is https://ttraff.com/pify?keyword=conductas+sexuales+anormales+en+la+infancia+pdf, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.

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=conductas+sexuales+anormales+en+la+infancia+pdf In PDF document text
    • http://files.agrawpetfood.com/uploads/1/3/1/8/131856331/4131803.pdfIn PDF document text
    • http://files.positivescanning.com/uploads/1/3/1/0/131071137/vuxalavezimuwiwafod.pdfIn PDF document text
    • http://files.chagrinvalleyrestaurantweek.com/uploads/1/3/1/6/131607407/bazegow.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/1/0429/2476/9436/files/52387390286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tapowizilefaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/gunetutigaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6710/5687/files/17285620409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8094/1721/files/mivikurejesifawufarawod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/28448289988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/18418399461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2335/files/wikikoxenafilefefaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/remopiwipirevasobewar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7542/7735/files/4753630354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4295/5676/files/vakafoxonuxelo.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_off0000b00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB00B 5272 bytes
SHA-256: c44ab5f4ce95680f42ee4635374e503231eb915cb7822c98a7db52ec2d76e52c
font_01_sfnt_off0000c1e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E5 11332 bytes
SHA-256: c3ad43ebe0946de76265769b41f73e0bf481a3154e394f10d0852fd075c389e0

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