Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ea6cde8869eb3d…

MALICIOUS

PDF

44.7 KB Created: 2020-10-28 17:31:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: d2196d93450389d99fb8efa1918f7292 SHA-1: e07f74548563a726b3e23d7d9929600576370b3e SHA-256: 97ea6cde8869eb3d89dc0a5a45144729c1325f4e1acf0eaa3f642ad31946969a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.me/pify?keyword=twilight+forest+progression+guide In PDF document text
    • https://birebojutadavom.weebly.com/uploads/1/3/4/3/134342015/4361941.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378381/normal_5f8ae6a1340ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404966/normal_5f96dd5c0713d.pdfIn PDF document text
    • https://polabufasol.weebly.com/uploads/1/3/2/8/132814050/3551090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f979121b0e5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388413/normal_5f93bd1bf2e8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368219/normal_5f91fcb28c8ef.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/sugaguxagu/34417021562.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e68af368-4896-4f53-adc5-b424cc80a53b/godbound_rpg_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8360/files/leadership_training_manual_in_nepali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7727d10-4f92-4adf-8aa5-41a5ba978ae5/gudibonefexewapoxuvobano.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/cancionero_catolico_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47528c7a-9807-4bb3-b3c5-dec09fed0aee/67121776973.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/59169098351.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/97342512148.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1f48a89-6f9c-491d-87c9-38feb0b117c2/fallout_4_custom_ini_not_configured_correctly.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e68088e1-85f4-41ed-99dd-72359f9301c3/rufukurulotutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9916/8163/files/pewatexebemofofije.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_off000071a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A0 5132 bytes
SHA-256: 86cc0255f634f71754f253addaa0f45161510b16e8eacf048babd1876e38a129
font_01_sfnt_off00008328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8328 10212 bytes
SHA-256: 6408a361c99a9f458d941d743c1cdebd7f23eb7ac442f47ac005b8599285a3cf

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