Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fc841be9da3210…

MALICIOUS

PDF

48.2 KB Created: 2020-08-19 10:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bebda0857ea9b1b1621d8d000431ab81 SHA-1: 07d513da03c9c3127be54d658ce41a897c6f2aba SHA-256: f2fc841be9da3210581a4280cf79e557ecbde793bddf273248e79916ba6ebc7f
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The ML classifier strongly flagged this PDF as malicious. The document body contains text related to 'Keyword research guide 2019' and an embedded URL, suggesting a lure to a malicious site disguised as a resource. The presence of numerous PDF links and a malicious redirector indicates a likely SEO manipulation or phishing attempt.

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=keyword+research+guide+2019 In PDF document text
    • http://files.inspiredemocracy.org/uploads/1/3/2/7/132712093/vaminov.pdfIn PDF document text
    • http://lonofipe.woodlinecreations.com/uploads/1/3/1/4/131437532/pewuxurigar_vusate.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/1/0438/0291/9074/files/vejapikadilazata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1212/0998/files/adjoin_matriks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2335/files/pdf_ant_colony_optimization_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/zawupad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0207/6070/files/naruto_shippuden_episode_223_english_dubbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/american_english_file_1_workbook_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/list_of_companies_in_tamilnadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2824/0794/files/kentucky_schedule_a_2018_tax_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/zigemopazodeluzobem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/90900001343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7799/0568/files/33169593866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/jipalutuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6312/files/20058774073.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: bbbstraighttalksports.com 6 samples

Related samples 4

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_off00007d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3B 5812 bytes
SHA-256: 7696c795bf69efabd25db2d22f878f29f9601353f1403272c145721ce6e7b410
font_01_sfnt_off00009126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9126 10240 bytes
SHA-256: 97055fe4986706e8ee1776b033552a30e8325a15cd8d4a5099443bcd8380cd2f

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