Malicious PDF — malware analysis report

Static analysis result for SHA-256 3342d61ae6e8d273…

MALICIOUS

PDF

47.8 KB Created: 2020-08-07 00:18:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e855f6cd79b2d4fa7f8cf8df7fb887f4 SHA-1: 72733c2ce8b9cfcecc8aff9805d1958160772142 SHA-256: 3342d61ae6e8d273f2f48ea62a397f1c817f9732da28e838ff2accebe3442e5b
194 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a malicious redirector link and a large number of external PDF links, suggesting an SEO poisoning or link farm attack. The primary malicious URL identified is https://ttraff.cc/pify?keyword=artrosis+tratamiento+fisioterapeutico+pdf. While no scripts were extracted, the structure and embedded URLs point towards a malicious intent to redirect users to harmful 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/pify?keyword=artrosis+tratamiento+fisioterapeutico+pdf In PDF document text
    • http://files.georgejulianptsa.com/uploads/1/3/2/6/132696351/8c5175c3.pdfIn PDF document text
    • http://files.mpcharmnails.com/uploads/1/3/2/6/132681699/8340966.pdfIn PDF document text
    • http://files.newbornga.com/uploads/1/3/0/8/130813095/monuz-siwotigu-pafake-kuxadirezona.pdfIn PDF document text
    • http://files.ofcpineapplepoker.com/uploads/1/3/1/1/131163533/pojogijefinuw_busekemereli_lifid.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/1/0431/7403/5607/files/levogimulatejugezapizoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5569/3470/files/49075611790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7337/1300/files/64032430718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8316/0995/files/80184796809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/lewebeterunezoroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/gelikekuxarolewalafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/jovaxejokegagurako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/4157651546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4452/7511/files/kafogawegidusebolumoxav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9244/2277/files/aqa_psychology_a_level_textbook_year_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/57352473849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/jonuzopadof.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
🗂 Part of campaign: howesoundwoodcrafters.com 3 samples

Related samples 3

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_off00007b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3A 5260 bytes
SHA-256: 2b1d2e3cf4c1ede1a912a92707029156ef6f7dac1d3b4f74bbc9b096ea9e301c
font_01_sfnt_off00008d03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D03 10948 bytes
SHA-256: ad2cca3be09a8c15fdc4c67f5d08da17b6fcf07bf43f5ce6743c1fe91fc50f30

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