Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e56002e6d3f210d…

MALICIOUS

PDF

35.5 KB Created: 2020-11-06 18:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: dd3fb75eb7d5f16e36fe279079ad843e SHA-1: 417104b080325f45520d428080b6c0707191cc36 SHA-256: 6e56002e6d3f210dfa7a12b0ee8b76fb12997890733119a952963bd0ecfd9aef
194 Risk Score

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://traffine.ru/123?keyword=bait+of+satan+workbook+pdf In PDF document text
    • https://velulaganivuvoj.weebly.com/uploads/1/3/4/4/134438708/5176024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391903/normal_5f9257d321259.pdfIn PDF document text
    • https://jimagofer.weebly.com/uploads/1/3/0/8/130813953/zipetebomuzipe-lebukomuporenex-rimuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wavunot/mubagoxopariwine.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/the_beginner_s_bible_timeless_children_s_stories.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/canalyzer_training.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/seaview_village_brooklyn.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/indian_wedding_catering_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/dsn_2020_doctoral_forum.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/pandoc_markdown_to_command.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/8448895700.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/vubaveritogujeridakofog.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/great_scott_grapevine_tx.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/24376328106.pdfIn PDF document text
    • https://s3.amazonaws.com/wejalixex/jozerosekuriselekivixufur.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/barron_clothing_catalogue.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD9 5348 bytes
SHA-256: 9aaf93fa3c17b791c81a08f4c8771c2bbe902e0b888a72ea0577aa113d0a34e8
font_01_sfnt_off0000602b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602B 9548 bytes
SHA-256: 1203e8ddb098e959c81c8811b3e56da79b8e615abacd0809949c85d2e49b3d09

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