Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d24a20be1cf209a…

MALICIOUS

PDF

48.3 KB Created: 2020-08-11 07:46:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6cd55a915678dbb7245d17490e9ec000 SHA-1: 031cf0ebb7449ad6e1a911da006e114d651ee565 SHA-256: 7d24a20be1cf209ae58759e8448c34b3b507409d9824b604323b495ad4441ef7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The document body contains numerous links, many pointing to Shopify-hosted PDFs, likely part of an SEO link farm designed to attract users searching for specific documents. The primary redirector URL is https://ttraff.cc/pify?keyword=deontology+philosophy+pdf, which serves as a lure for a free download phishing scheme.

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=deontology+philosophy+pdf In PDF document text
    • http://files.decision-camp.com/uploads/1/3/2/6/132681294/4ffc00a1c3.pdfIn PDF document text
    • http://files.clearpathemployer.com/uploads/1/3/1/3/131383544/01eb14ca502.pdfIn PDF document text
    • http://files.bcsgrubbox.com/uploads/1/3/0/8/130813601/8bb0c.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/1/0429/9977/5381/files/51555274997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7347/files/vimopexibijujupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0597/files/86662105008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/lefatoxuseputedowanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/retencion_placentaria_humana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/70921477828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9494/0573/files/assistant_system_engineer_tnpsc_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4169/2570/files/al_final_mueren_los_dos_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/60550569959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/vusuwasidinotapaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/wigejovi.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 3

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_off00007cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB4 5100 bytes
SHA-256: b498b219679b9cf6f0f3b96d45577694aa802e0e84323f246a981817f2500550
font_01_sfnt_off00008e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1C 11344 bytes
SHA-256: f6a6a8612fd1d2b8612c86bea7557814829ccd310a6945c952f1bbc37c655a55

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