Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9c21f22250fb5c…

MALICIOUS

PDF

42.3 KB Created: 2020-08-11 04:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ae5acedcc6c53fed0602b9cd7378805 SHA-1: 10cfbfcee50910da5aae669069a71e10ed6b6ea0 SHA-256: ed9c21f22250fb5c5e2bf303358074fc1daf99f9437cb27daa5516ffec368812
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to potentially malicious redirectors or unknown PDF files. The primary malicious link, https://ttraff.cc/pify?keyword=building+self+confidence+worksheets+pdf, is identified as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other links, suggesting a lure to download further malicious content or visit malicious sites under the guise of helpful resources.

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.cc/pify?keyword=building+self+confidence+worksheets+pdf In PDF document text
    • http://xitin.bankshotpockets.com/uploads/1/3/0/7/130775997/vaxej.pdfIn PDF document text
    • http://files.leedstriathloncentre.co.uk/uploads/1/3/1/4/131406453/6874189.pdfIn PDF document text
    • http://files.peninsularoofing.com/uploads/1/3/1/4/131411762/suzuvaba.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/1/0433/4023/4902/files/pepusejaxigezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/memitojubewuvoweva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9079/5934/files/basic_english_conversation_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/26433148270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/jozap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9412/files/kimora_sosha_cozart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6975/8874/files/tajugenozexewavibof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9124/7779/files/business_model_canvas_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0782/3259/files/boarding_pass_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5877/3662/files/4165611657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/54367760002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4156/8421/files/kuboraxojamomuxadel.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 6

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_off0000675a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675A 5412 bytes
SHA-256: 65e05e28c144f88349872d3e427789799b0dfa232cf8dae7a52e8a3e4f69a3f4
font_01_sfnt_off000079d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79D2 10112 bytes
SHA-256: da80b87d5739a41bede55f0cc2d40e8d5de3c45fed196e33ec32f988746ed67f

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