Malicious PDF — malware analysis report

Static analysis result for SHA-256 73bd929adbd3f641…

MALICIOUS

PDF

42.6 KB Created: 2020-08-09 07:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e07ea783bd1e4631c3e9a5bf0e05764 SHA-1: f7fcee44e8053b0dc2a884d4c13750f81e8d684a SHA-256: 73bd929adbd3f6413fc7b0b9745513c94005365e86d2ecd7904aeadfc62b8774
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious SEO link farm. The primary redirector URL is https://ttraff.com/pify?keyword=wordly+wise+3000+book+5+lesson+pdf, which is a known malicious redirector. The document body itself is heavily obfuscated and contains embedded URLs, suggesting an attempt to trick users into downloading further 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=wordly+wise+3000+book+5+lesson+pdf In PDF document text
    • http://files.riversidetroutfishing.net/uploads/1/3/1/0/131070051/8e75188b31b1ca7.pdfIn PDF document text
    • http://files.manillashowsociety.net/uploads/1/3/1/1/131163684/5709582.pdfIn PDF document text
    • http://files.cyfairbrigade.net/uploads/1/3/0/7/130775506/679255.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/1/0431/5004/9448/files/33817016155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1254/6975/files/2004_polaris_sportsman_500_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/kadidad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/turbo_cleaner_boost_clean.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7329/7814/files/jubepudirategew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/kopujilaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8535/3380/files/jspdf_autotable_horizontal_headers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7508/3167/files/benefits_of_budgetary_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/9872372014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/likuwav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6543/0431/files/dipleurula_concept_of_origin_of_chordates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3846/files/fubozivexavawujotojimi.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 4

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_off00006684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6684 5664 bytes
SHA-256: 6ff57509442fc05d1f53d026e1d52e30d92123f98e09d8e1ed39fd5d34b03100
font_01_sfnt_off000079fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FE 10508 bytes
SHA-256: ba34b237f1027cca889c515ee9a2ba94c1c3f5182014495f119fe526316cdbf5

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