Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e7d400e41f9aa4…

MALICIOUS

PDF

49.7 KB Created: 2020-08-05 02:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 53bb9b67067e6cd7b79c236380798fa5 SHA-1: 34f3268f40fa180d454a40dfe4d3621e8d4ac320 SHA-256: 67e7d400e41f9aa447c1ade6292d91c9528bfe5d832280c84d1d02fb1e348bb0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that appears to be part of a link farm or phishing operation. The ML classifier strongly indicates maliciousness. The embedded URL and the heuristic firings suggest the primary goal is to redirect the user to malicious content, likely for phishing or malware distribution.

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=causes+effects+and+solutions+of+land+pollution+pdf In PDF document text
    • http://files.jessicabaylisswrites.com/uploads/1/3/2/7/132741334/zemuxokerixizix.pdfIn PDF document text
    • http://files.learnfrombarrymaterials.com/uploads/1/3/0/9/130969306/64767183d3cc.pdfIn PDF document text
    • http://files.ebrahimkhanilab.com/uploads/1/3/1/3/131381802/1b2759dd.pdfIn PDF document text
    • http://files.taylorsvilagboutique.com/uploads/1/3/1/8/131856160/a4de1cb7.pdfIn PDF document text
    • http://files.torbayvts.com/uploads/1/3/2/6/132681479/661489.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/1/0434/5190/8249/files/gumaxajesemifubap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/xebivenifoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4504/3880/files/english_grammar_course_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/52_states_of_america.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5880/7455/files/ximinakamom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6513/files/12285802150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8764/1241/files/5965365107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7201/files/escape_double_quotes_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/ecg_lectura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/75743291762.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_off000084ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84AB 4960 bytes
SHA-256: a0995082f814f76d5cf15ec52d22cf278755ba12dd2dfedcbd5efa57ed871738
font_01_sfnt_off0000959f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x959F 10364 bytes
SHA-256: 768ca5e9d2787c83590614a85ea02537c105ee3e997457795ca41368f786d2cd

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