Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b6fff278a03283…

MALICIOUS

PDF

79.7 KB Created: 2020-08-04 10:12:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bf83033b988889470cb06a215ac8290 SHA-1: 59e938c085edd0f37d9f5d93247dd5fef51302b5 SHA-256: c6b6fff278a032833f00b01ba1e7b88d4957fbe12886fc66fb1f9eca32ae68a8
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bennett+s+cardiac+arrhythmias+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The primary attack pattern involves luring users to malicious infrastructure.

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.com/pify?keyword=bennett+s+cardiac+arrhythmias+pdf In PDF document text
    • http://files.rosecitythunderbirds.org/uploads/1/3/1/6/131637896/veluwepes.pdfIn PDF document text
    • http://files.abidinghopecc.com/uploads/1/3/1/6/131606291/lojogezaj-jivitokipeve-toninaladado.pdfIn PDF document text
    • http://files.johnsonsguns.com/uploads/1/3/2/7/132712234/lokoguv.pdfIn PDF document text
    • http://files.christianpeco.com/uploads/1/3/2/7/132741476/637bb8b02c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/67509553968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6193/5261/files/how_to_do_a_voiceover_on_imovie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/16679142427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jezimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/photoshop_free_trial_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/94287487073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/61373247785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/pugepiwexilewuxekudanid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/84961531462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/wewijabovutukexunobi.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 6

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_off0000ee2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2E 5192 bytes
SHA-256: e5e92db3507672eab4f5797f495e1f5561d840499ae0dd25fab4d9187bd13228
font_01_sfnt_off0000ffaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFAF 10436 bytes
SHA-256: 594b67b6a0f7e56a9cd647a8ae3d2391cc6269b80ba15b2869079f5d0c6a8ddf
font_02_sfnt_off0001235d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1235D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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