Malicious PDF — malware analysis report

Static analysis result for SHA-256 6632146acad6d858…

MALICIOUS

PDF

57.8 KB Created: 2020-08-19 21:25:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aadb45c21887eeeea5547f27e9675c18 SHA-1: 17308dbe7e2ecd6e74adea9e6db53b9d0033f850 SHA-256: 6632146acad6d858176f7ab19d510fed64fb5d7b4b1b4ab14e0d52744302bb55
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.com). The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a large number of links designed to lead users to potentially malicious sites. The embedded URL in the document body also points to the same redirector, suggesting a phishing or malware distribution attempt.

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=mexican+king+snake+care+sheet In PDF document text
    • http://files.julialetters.com/uploads/1/3/1/4/131453498/peduwili-jeretefuwufuji-nilemizemupowe.pdfIn PDF document text
    • http://files.katebond.org/uploads/1/3/2/3/132302732/lisozifo.pdfIn PDF document text
    • http://files.joannawhiteflute.com/uploads/1/3/2/7/132740692/5552278.pdfIn PDF document text
    • http://rigijade.kkylambdapsi.com/uploads/1/3/1/0/131071157/67af9f.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/1/0432/2027/1264/files/rivotifatugup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2372/7783/files/mimetufamafukezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/84604230705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/wuxisole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2091/7668/files/gi_bleeding_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5059/6512/files/neganemugivezol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/myanmar_proverbs_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/71508027549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7625/9735/files/loxigomipikativafam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5390/8117/files/56498101259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/gumasomumudujeben.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_off0000a256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA256 5168 bytes
SHA-256: 2769bf5eee7dae40f771f1a750bd9bba97646dab1679dec5953187ab4560ef7c
font_01_sfnt_off0000b3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3EE 11612 bytes
SHA-256: 7e2ddbede5649337eaa5c7a98128102eb0d9709d44fb08b68173ff27b3fbfeca

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