Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2782785fe4e2b4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-28 08:30:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3243773680c4a3e70d8b08ee21c50797 SHA-1: 57db1f1d25b5eea062794189e1b0bf8fca2f2cf2 SHA-256: 6f2782785fe4e2b4bdf8112bbb79ec3876bb814f6340fbba348a5eab12c81100
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. This suggests a phishing or scam attempt to trick users into downloading potentially harmful files or visiting malicious sites. The presence of many links to external PDFs, some benign and some unknown, indicates a link farm or SEO poisoning tactic to improve search engine ranking for malicious content.

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=ordinal+numbers+dates+exercises+pdf In PDF document text
    • http://files.paqu.org/uploads/1/3/1/8/131871894/vibofukupu_ruzererijolibij.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/1/0428/4186/6403/files/comptia_security_certification_guide_ian_neil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5703/5929/files/awesome_desktop_wallpapers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2042/5115/files/chevrolet_impala_2015_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/acca_membership_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0438/7750/files/risc_architecture_merits_and_demerits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/materi_biologi_sma_kelas_xii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/47219079096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8289/0918/files/90782648261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3636/8283/files/96752053924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/xelelizafogibaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/54490952217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0719/1701/files/lspdfr_callouts_crash.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_off000062ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BA 5536 bytes
SHA-256: b62f4be62094f9be27f69ff0ad1e2c95fc36ec9f609048239264da1d19780f80
font_01_sfnt_off00007572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7572 14412 bytes
SHA-256: 7d9d5bf684d25435d495af3f8b6960917e100d3f0f156a3325ecdcfd0ee7d55b

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