Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6b2b6240981380…

MALICIOUS

PDF

45.3 KB Created: 2020-08-21 04:11:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0243e4a48d725cadba560b281d9990a3 SHA-1: fbddaa6604dd97c0291a5cec1b426b93895846e4 SHA-256: 6c6b2b6240981380a82958cd5d2a7da4fcab5c1f3b9d2024a349b74261c66b0a
194 Risk Score

Malware Insights

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

The PDF contains a link farm with 24 external PDF links, many pointing to Shopify, and a primary redirector URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate this is likely an SEO manipulation tactic or a lure to distribute malicious content. The embedded URLs suggest an attempt to drive traffic to specific sites, potentially for phishing or malware distribution.

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=template+wordpress+news+magazine+free In PDF document text
    • http://files.zoningatl.com/uploads/1/3/2/7/132712268/128c84f13b8.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/fezusagofetivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57189589950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/77239856468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jewepogepavab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0456/8252/4319/files/nts_book_for_computer_science.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4541/5070/files/bailey_and_love_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/tobawilawazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/pivenegim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9030/files/bfa_battle_pets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/29894990772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/japoroga.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 5

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_off0000729f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729F 5452 bytes
SHA-256: 33a350366be45cda0409f8fc20f6592d69859038469ea58e92d471a8ab782145
font_01_sfnt_off0000852c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852C 10332 bytes
SHA-256: 6a09857cb874c45c8b5cb9041c54c9a53fa89a4ec4420f6f34074f209b67b7e2

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