Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae5bc2a0c107e5a…

MALICIOUS

PDF

43.8 KB Created: 2020-08-08 09:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e727e9ac2d223d8835a6372b7f00ef7f SHA-1: ece3c6b84c8b534476842c0bfe1df97d6745e1b2 SHA-256: 5ae5bc2a0c107e5ac1d336d0a02b31f568883abf3e05444a8d1b156e6db5dd4e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as a link farm for free PDF downloads, but the primary link redirects to a malicious URL (ttraff.com) via a pify redirector. This indicates a phishing or scam attempt to trick users into visiting a malicious site under the guise of downloading a free resource. The ML classifier also strongly indicated maliciousness.

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=the+addiction+treatment+planner+free+pdf In PDF document text
    • http://nexikapog.concretegarage.com/uploads/1/3/0/8/130814769/327d10d.pdfIn PDF document text
    • http://files.kallerasinkangas.com/uploads/1/3/0/7/130739131/daforanoxobogeveza.pdfIn PDF document text
    • http://files.wildabouthomefoodtravel.com/uploads/1/3/0/8/130814390/b569b.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/1/0440/3471/9909/files/vigedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/66974270831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2585/7703/files/construction_management_halpin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7873/7302/files/pediatric_anesthesia_books_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/61665727613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9363/files/22361637355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6498/1664/files/thyroid_gland_structure_and_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9406/3770/files/pudiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/fl_studio_free_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/wokosimixaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/regilukusurudiruxipenom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/40495850110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3623/8236/files/83868320877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/28967898311.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 2

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_off00006e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6B 5164 bytes
SHA-256: 55e2df223cfa8518d961fd0a83c13ddd1a343ac5865eb37bdbddb0d3ca8867e4
font_01_sfnt_off00007fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD0 9872 bytes
SHA-256: ac9f2fea33730b40f37a73b477833fe3ade5da0c113becfbc76e266e93b42834

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