Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57380f72b650087…

MALICIOUS

PDF

41.0 KB Created: 2020-08-09 03:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b3bc6ca35913ed71e649816b5718176 SHA-1: 76567a2d5ebb1b9306595df7e963bffd5569a01a SHA-256: d57380f72b650087139f76976734c0f84150116e06c15671ecf646a45da3bbce
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. It also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is https://ttraff.com/pify?keyword=bollard+pull+test+procedure+pdf, which is likely used to redirect the user to a secondary malicious site for further payload delivery. No scripts were extracted, but the PDF structure and link analysis strongly suggest a malicious intent.

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=bollard+pull+test+procedure+pdf In PDF document text
    • http://files.becorefit.com/uploads/1/3/0/9/130969936/gegexagibemebu-vijip-zorenisef-wulixiwoxup.pdfIn PDF document text
    • http://files.blainesworld.net/uploads/1/3/0/8/130873718/fuluzaxuzedisu.pdfIn PDF document text
    • http://files.8720coop.com/uploads/1/3/0/8/130874104/6654053.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/1/0439/5424/1694/files/core_java_quiz_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/identities_equations_and_inequalities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3851/5098/files/linfoma_burkitt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/tigowadigego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/offensive_minecraft_skins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/introduction_to_fourier_optics_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9534/9666/files/exploring_psychology_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8001/5262/files/wowebusivugifowapipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/1017138876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54341666742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/41757473166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.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_off000061f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F8 5200 bytes
SHA-256: f3e77fb53d844527893872b8e0b9bf7f267faa50774a0729a002bb878d7f1702
font_01_sfnt_off000073b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B8 10404 bytes
SHA-256: 74ee8898a6e480ad5e92c5162b67d453e56ce10bcd5a865707db28aeff593fc6

Open this report in the interactive analyzer, or submit your own file for analysis.