Malicious PDF — malware analysis report

Static analysis result for SHA-256 2352de07a69d231a…

MALICIOUS

PDF

42.0 KB Created: 2020-08-07 08:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5faf4767bb7021c28be46fd7f4e5b23c SHA-1: e074a2f95bd523bd29235308133d8806231fa5ae SHA-256: 2352de07a69d231a363cb403300ec8fbc616ff52f85b3f631c4a111fb27fc2a0
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though partially corrupted, also contains the URL 'https://ttraff.ru/wb?keyword=capitalizing%20titles%20worksheet', which is flagged as malicious. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic, potentially to obscure malicious activity or distribute further payloads.

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.ru/wb?keyword=capitalizing%20titles%20worksheet In PDF document text
    • http://tosibuno.hausofgary.com/uploads/1/3/2/6/132681946/8dee4c1.pdfIn PDF document text
    • http://files.crookedcreekfarmsvalpo.com/uploads/1/3/0/8/130814279/vexejusatupowu.pdfIn PDF document text
    • http://files.thebrionnarenee.com/uploads/1/3/1/6/131606603/46fde18d753c1b4.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/1/0432/2462/9411/files/jikalanetenonok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/wuxowujakelagulunamoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/alumbrado_publico_con_paneles_solares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88406012193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/56500563917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/kusazipenidagomobifuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2777/4115/files/42367525172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1773/8152/files/42635060351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5534/1977/files/52443456095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/34689433493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/wave_incense_pixelmon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0481/9613/files/computer_full_form_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/weekly_study_schedule.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 2

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_off000066a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A6 5192 bytes
SHA-256: eb68a306521fabe17c6be8f32ab6b2bd32eab3528fa9d52e443535699d263cec
font_01_sfnt_off00007862.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7862 10240 bytes
SHA-256: 28350a59368ff011713365f540428704c771b60ab9e4d7fed904e88b04229aac

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