Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd10080a8345ef23…

MALICIOUS

PDF

46.6 KB Created: 2020-08-04 14:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3306c9a38031cf876776d648e6066b2 SHA-1: cb4ef004f04ce2e156c3659ba2395243ef916f1a SHA-256: bd10080a8345ef23e1852461da1bc3aecbd9512630b8b6854183fb9869e6b85c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bridge+to+terabithia+vocabulary+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF also exhibits characteristics of a link farm, with numerous external links, suggesting an attempt to manipulate search engine results or distribute further malicious content. The ML classifier strongly flagged this PDF as malicious.

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=bridge+to+terabithia+vocabulary+pdf In PDF document text
    • http://files.noon.rs/uploads/1/3/0/9/130969494/fbf29b7b.pdfIn PDF document text
    • http://files.artbylucymott.studio/uploads/1/3/0/8/130873872/ab769db3e.pdfIn PDF document text
    • http://files.breathingspacecounsellingpractice.com/uploads/1/3/2/7/132712040/6a56c9649c6.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/1/0428/9835/8432/files/20424522606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2525/0974/files/ginikesokinonavaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7354/9974/files/60784285289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/vusorisivis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/mcmlxxviii_roman_numerals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/73590393656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/tovud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/20392794163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/wigupotumujovivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/ball_badminton_new_rules_and_regulations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/67734007353.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D8 5592 bytes
SHA-256: fe70a576dfa010660c7952b41ab67c41dae5ad1da54d654d79cc182eedcd8182
font_01_sfnt_off000073e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E8 10540 bytes
SHA-256: 46f82e1ae6a33a29e790654c0cfabaa10efaa969e8a709cfaaf31579da0c5265
font_02_sfnt_off00009831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9831 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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