Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3cfc1719fdea8b1…

MALICIOUS

PDF

38.4 KB Created: 2020-08-14 11:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07d3553b6e8a9510b9995d0e8fa2f21b SHA-1: 2afcefa7d9cb7a451f4cb63d48970309fad8b6c7 SHA-256: b3cfc1719fdea8b184846326b2e5a92d8e32f8e2d3aad30f1e364c744c565b9c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of embedded links, with a critical heuristic firing indicating it is a PDF link farm. One of the primary links points to a known malicious redirector, ttraff.com, which likely serves to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=pioneer+2+din+android In PDF document text
    • http://files.vanmcminn.com/uploads/1/3/0/9/130969551/5589790.pdfIn PDF document text
    • http://jigude.jerryandwen.com/uploads/1/3/1/0/131069991/9697319.pdfIn PDF document text
    • http://files.portclintonattorney.com/uploads/1/3/0/7/130776158/dcddfa5.pdfIn PDF document text
    • http://files.jameskallembach.com/uploads/1/3/0/7/130739340/nejalenodeluwez.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/1/0437/2067/1400/files/assertive_communication_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8047/4014/files/suwenudagun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4072/2331/files/good_and_bad_leadership_qualities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0141/1744/files/north_easton_savings_bank_routing_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/pidomuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2282/7165/files/xeramawewiwerawipotox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/61701608964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/xotemogokizubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/tuvikajijozujidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9730/6776/files/lexedepijesafimob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/tagabeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0314/0506/files/4894393646.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_off00005a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A75 4744 bytes
SHA-256: 829915888b18dc76a9b83b400e28f6ac6c5aad003f94f4effec41b4de619d055
font_01_sfnt_off00006a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A98 10012 bytes
SHA-256: 6ae6e4f2fcee607a71987a2c7e7299697cbd34f05abfbfda88a2a627ef78c29a

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