Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a85919865c7096…

MALICIOUS

PDF

43.7 KB Created: 2020-08-15 14:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b067052066936b3762b1660b06ce67ea SHA-1: d727904191b4b40db7cb7cfee193e2f73a63b71e SHA-256: 74a85919865c70960302b47a3bfb8b5d5c6c3b980b88f4326e8c6e0bbf044775
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to an SEO redirector infrastructure. The primary redirector URL, 'https://ttraff.com/pify?keyword=the+day+after+tomorrow+questions+worksheet', is identified as malicious. The document body, though heavily obfuscated, contains this URL and other links, suggesting an attempt to drive traffic to malicious sites through a deceptive lure.

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=the+day+after+tomorrow+questions+worksheet In PDF document text
    • http://files.thedailydiplomat.com/uploads/1/3/2/6/132695698/zolobu.pdfIn PDF document text
    • http://files.thcofe.org/uploads/1/3/1/8/131856757/5215631.pdfIn PDF document text
    • http://files.ausdart.com/uploads/1/3/0/7/130739004/5123419.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/1/0431/6702/3253/files/how_to_get_coordinates_in_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/bylaws_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/xawadune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1917/2000/files/define_business_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8351/3499/files/51780840786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/wiwobukunimibowiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/best_to_word_converter_software_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/fopepavofa.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_off00006bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD6 5448 bytes
SHA-256: ff9290b52d5e3a8bb97cbbfafa13dcf0e8e847e87371e96cc56fd158369e5a52
font_01_sfnt_off00007e57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E57 10472 bytes
SHA-256: dfd639adc5aba15984f364f0dd1c6876b31733ee9dc3b8015b66554c99acbfd7

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