Malicious PDF — malware analysis report

Static analysis result for SHA-256 80bfdc4297ba3185…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 06:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f40a4e6147375e32bbb22b0eefb8aaa SHA-1: a6554f31ade5426c92ba9e59dd393479fd0b0207 SHA-256: 80bfdc4297ba3185c6677f2480db474bed4bd8743bca0295fea4499570ed01eb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though partially corrupted, contains text suggesting a report lure and includes the malicious redirector URL. The presence of numerous external PDF links also indicates a link farm or SEO abuse tactic.

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/pify?keyword=chablis+vintage+report+2018 In PDF document text
    • http://files.makeupbybb.com/uploads/1/3/1/3/131381712/zinomezumajiwet_xamaminiwoxesus_radan_gekero.pdfIn PDF document text
    • http://zorim.bereanbiblechurchfm.com/uploads/1/3/1/1/131163599/bc801b3793572d7.pdfIn PDF document text
    • http://files.positivetransitions.co.uk/uploads/1/3/0/7/130776714/902aa.pdfIn PDF document text
    • http://files.stephengreiman.com/uploads/1/3/0/9/130968947/papewofe.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/1/0449/8885/8536/files/hq_youtube_to_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/nafogigekugekagovaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dokole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2039/files/twi_cswip_3._2_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/miller_and_levine_biology_chapter_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7033/8725/files/dedozukuvun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/90011245752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7539/8821/files/enhanced_ui_civ_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/advertising_and_public_relations_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/gezanidonirufataluwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1112/1063/files/board_games_to_learn_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2229/9815/files/tweed_cephalometric_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9824/2214/files/31738751396.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 8

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_off000065f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F2 5708 bytes
SHA-256: d4484fce1d66bff883f35f03405074a9b4d52801d2cf7038a5e8f6c60cf21fc8
font_01_sfnt_off0000795a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795A 10028 bytes
SHA-256: 7748b7e93cc624157e3e6edcb2fd9ee2e16264f43266f27c11dc68eadae420dd

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