Malicious PDF — malware analysis report

Static analysis result for SHA-256 1430478f9d6bdbf0…

MALICIOUS

PDF

43.4 KB Created: 2020-08-06 20:26:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42c1bc6f40f707942b607eda85d3c8a9 SHA-1: 29717de69f0cc18227a5872301da01b97a697058 SHA-256: 1430478f9d6bdbf0a3f5c597a4050ba8842d98756e07d36a5c7e87a735c1e932
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract users searching for educational materials. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring users to malicious sites via deceptive links.

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=literary+devices+pdf+high+school In PDF document text
    • http://tazivox.yashbangera.com/uploads/1/3/1/6/131637649/pafasipifufola_zivuziben.pdfIn PDF document text
    • http://files.authenticatex.com/uploads/1/3/0/9/130969172/91ebffe673.pdfIn PDF document text
    • http://gesivov.lflplatform.net/uploads/1/3/0/7/130776262/berebigowub.pdfIn PDF document text
    • http://geseda.heatonfeetfootwear.net/uploads/1/3/0/7/130738732/fubigu.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/1/0433/2794/6904/files/wapeniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/87530861362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/kajepitog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6731/files/raninidonikeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/76253880283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9041/0658/files/bokelupuzonavimedove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/alimentos_transgenicos_ventajas_y_desventajas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/16893071437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6187/0746/files/fusurezobusegiwapituk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66491839223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/67509118494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1741/files/center_in_markdown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9030/files/eleemosynary_play_script.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_off00006bce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCE 5520 bytes
SHA-256: d9ab8a1b4ebd24f6f42442f3965f16b71632ac1314d4e1254f0dd5ea6c763e2d
font_01_sfnt_off00007ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA0 9932 bytes
SHA-256: 756258b2cdcf5ac01c2111111b590aa4ff96d3876c5b03e8bf77c561e9480091

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