Malicious PDF — malware analysis report

Static analysis result for SHA-256 be0c69eef96fb61a…

MALICIOUS

PDF

47.8 KB Created: 2020-08-19 10:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25c97e062a30d92e04636b34cc4abba6 SHA-1: 9c8ed8e2d3497af4dae4cee4ec8616eaadd441d2 SHA-256: be0c69eef96fb61ad1000102e285979009498fabf2e2bbde9c2a70f747917ea6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'Prokaryotic and eukaryotic cell comparison answers'. The presence of numerous external links, many pointing to Shopify, suggests an attempt to create a link farm for SEO poisoning or to obscure the malicious redirector. No scripts were extracted from this sample.

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=prokaryotic+and+eukaryotic+cell+comparison+answers In PDF document text
    • http://fokim.michelledrumheller.com/uploads/1/3/1/8/131857252/bubuzujatemajar.pdfIn PDF document text
    • http://files.azaset.org/uploads/1/3/1/4/131438477/xusogirupilam-rurofixir-fitidusonites.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/1/0434/0439/4646/files/aloe_vera_nombre_cientifico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8584/0036/files/hp_chromebook_11_g7_ee_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6018/2692/files/vokagusesofovovevadegezof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7035/6637/files/63577310389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wixedazatujiguxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/28591517658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/filebaxebafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/conjunctions_worksheets_5th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/59626840539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7786/7422/files/juwapovijoxavuletibemosaj.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_off00007530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7530 5476 bytes
SHA-256: f6a404b60c9dae6d92830191037ec987730db0ef8949a7e69a5808534452f7a7
font_01_sfnt_off000087ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87CE 13500 bytes
SHA-256: fd34224d32d793f794079421b824494816f688fd72bd0b8370d90b66fd3c8aae

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