Malicious PDF — malware analysis report

Static analysis result for SHA-256 82b2f24e359c71e3…

MALICIOUS

PDF

45.3 KB Created: 2020-08-30 00:54:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e15df7bfc3e285e0f88bf6a9b5209dfa SHA-1: 06a9428fbca5300640081dafa25aeb96b7be2021 SHA-256: 82b2f24e359c71e36fe940002fcd54853415ed07de6a29df928285caf2e93910
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, likely to phish users or distribute malware. The embedded URL 'https://ttraff.cc/wix?keyword=nana+calistar+blog' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF links hosted on Shopify, suggesting a lure for users to click through to 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.cc/wix?keyword=nana+calistar+blog In 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/1/0431/8189/9944/files/42421886970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/92583840420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/95992058820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6465/3984/files/tataxuvenawexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9097/4622/files/high_quality_care_for_all_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/gusoripelipibadawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1116/8664/files/mudajolalozevexiwipegam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/evolution_movie_2015_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7707/files/kenworth_8_bag_air_suspension_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9815/8744/files/dalotobiwokokofobiviliril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/niwukubuj.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_off00005e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7D 5076 bytes
SHA-256: 675cf5be805b0041a6038386f82d1a0812344b09e6f13441363468bd4f3a7dbc
font_01_sfnt_off00006fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC9 10300 bytes
SHA-256: ccb501fe0d116153eed965677282423667a4e265310d3964b13e3a43d8eeef98
font_02_sfnt_off000092fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92FA 16340 bytes
SHA-256: 4f9bddd8120402856594b33adaeac6aa436e26f5eb63b748bf1666df64cd7ce8

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