Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd5f4e7097943f0…

MALICIOUS

PDF

46.0 KB Created: 2020-08-27 16:25:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 543752a1d177733b8e90bb3243651edb SHA-1: af4a92a0832487989f2f95ea7b756d531cc77a25 SHA-256: ffd5f4e7097943f07b6ed222cda4a0e710a4057f138cb03bdddf1b9084e693c8
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, many of which point to external PDF files, indicating a link farm. One of the primary links redirects to a known malicious URL, ttraff.cc. This suggests the document is designed to lure users into clicking malicious links, potentially leading to further compromise.

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=producci%25C3%25B3n+primaria+y+transferencia+de+energ%25C3%25ADa In PDF document text
    • http://files.highway417-aviationtohuntclub.com/uploads/1/3/0/7/130775032/1420ad.pdfIn PDF document text
    • http://sajavu.artvenya.com/uploads/1/3/0/8/130874493/xozezofedej.pdfIn PDF document text
    • http://files.taunyapage.com/uploads/1/3/0/9/130969950/8729814.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/1/0438/1825/4498/files/addition_and_subtraction_worksheets_for_first_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3402/4855/files/pokemon_omega_ruby_rom_for_citra_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2456/4902/files/emotional_intelligence_2._0_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/19053748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0775/3888/files/college_loan_calculator_excel_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/12392696774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2679/7976/files/vubuzixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/nafefozubejakomelel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9842/1913/files/john_deere_71_planter_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9421/6599/files/bullet_raja_movie_free_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6847/9906/files/tudefifowarogif.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_off00005cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDD 5736 bytes
SHA-256: 80506eebb7cbe7e1911034f0d8e725f8cce66bb0cd8a6f8e81079a2ecea8e10b
font_01_sfnt_off00007010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7010 10808 bytes
SHA-256: fdb85a97692a91ac5e1618d84d464bbaffa943c2cf67d5d757647693e4c1bbb4
font_02_sfnt_off0000937d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x937D 16148 bytes
SHA-256: 43dd7310e986e37c0562d6efd2a67b6291a0d41fa892ecd43b306c3e7231f7b7

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