Malicious PDF — malware analysis report

Static analysis result for SHA-256 224f75c50502cfd7…

MALICIOUS

PDF

41.3 KB Created: 2020-09-11 17:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 869575dc3ccb9a8ae58aa878a59bf512 SHA-1: 0061d5849fd14862f1c0fc17dc5c21640764ded3 SHA-256: 224f75c50502cfd7a9860e4f64d9f2b6f8f76cb73d41eea611f154ea38865199
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used in SEO poisoning or link farm attacks to manipulate search engine results or lure unsuspecting users. One of the embedded URLs, 'https://ttraff.link/wix?keyword=chroma+key+explosion', is flagged as a known malicious redirector. The document body is heavily obfuscated and contains some of the URLs, suggesting the primary purpose is to redirect the user 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.link/wix?keyword=chroma+key+explosion In PDF document text
    • http://files.cookcreativemedia.com/uploads/1/3/1/0/131070611/b57101.pdfIn PDF document text
    • http://zamolaj.gridironcamp.com/uploads/1/3/1/8/131856158/1b53a20e26e6.pdfIn PDF document text
    • http://files.smokyridgecoffee.com/uploads/1/3/0/9/130969237/7221826.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_fc8001a335954c0597ff760a643b0b0d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/12dc78_dff25731196848e888a7b416d5399f02.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cc03df_a4bca8779302477e93a8613cd98ac25a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/599f1c_9fcb7b605a244e8190bff728fdb3341d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6561/5003/files/earned_income_credit_table_2017_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/uses_and_misuses_of_social_media.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3833/files/tekomuzitibubenugosezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8102/3132/files/55896929995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/wedobijugado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4940/9950/files/avg_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2056/files/19140994631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/lotemuwirejogezagim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6353/files/diet_for_celiac_disease.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_off00006406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6406 5196 bytes
SHA-256: b551898037fa514fa2d522fe4bc6aea9748b6d2e0bd3a3f501678cab8ad7d873
font_01_sfnt_off00007586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7586 10860 bytes
SHA-256: 3d1d7a7a402b077f80bc9122f8f234a3ca3ece095de319ac05cc4d2d001240c8

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