Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd24de8346d672bb…

MALICIOUS

PDF

44.6 KB Created: 2020-08-14 03:17:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2446bf97fbe567a7b70f0a56c1ae230c SHA-1: 0cd633f66c33bc458605f7e5decebcd80554aab2 SHA-256: cd24de8346d672bb987871cf6e8070a8de3e91f54c5b8b15a2434f1a786f6ee8
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a link to a known malicious redirector, ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify-hosted PDFs. The document body is heavily obfuscated and contains the malicious redirector URL, suggesting an attempt to lure users to malicious content or for SEO manipulation.

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=transformers+botbots+walmart In PDF document text
    • http://pazobafa.snowstorm-artstudio.com/uploads/1/3/0/7/130776553/6709767.pdfIn PDF document text
    • http://files.lynnkirkham.net/uploads/1/3/2/6/132682829/bidorisonupukix.pdfIn PDF document text
    • http://files.ckperformancemarine.com/uploads/1/3/0/7/130776875/7171010.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/1/0435/7485/3793/files/angular_template_innerhtml.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2002/3970/files/rerele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/application_letter_for_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3020/files/33845955637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/28928422776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/remove_element_from_array_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1677/6862/files/sobatidukaxugoremine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5064/5157/files/23924339192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/clasificacion_de_borrmann_cancer_gastrico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/34463298168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7229/8913/files/27861460384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2056/2077/files/spelling_test_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/vubisadilafiri.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_off00006fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD0 5096 bytes
SHA-256: 2842596fec5c1cdd1dd2c6862797c872fd58809be73b491f5bf3d28c8367781e
font_01_sfnt_off00008118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8118 10504 bytes
SHA-256: 9723667e1c4f755b90de5694f53d8e855261b8cf326ea114ac4c2afd7f4f2a6e

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