Malicious PDF — malware analysis report

Static analysis result for SHA-256 34997204d0ae8179…

MALICIOUS

PDF

66.3 KB Created: 2021-02-07 13:57:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c02ca748df2d41f6dbe65f1fb283eaf7 SHA-1: 3a961d6b14ad5a980a015871c2e974fca948a0aa SHA-256: 34997204d0ae817917c761dec9d1466b10580e8f8254e73b7549520de65b3d1b
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://baarspo.ru/wb?keyword=shahganj%20jaunpur%20weather%20report PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481055/normal_5ff37b328a46a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493890/normal_600889b363f1f.pdfIn PDF document text
    • https://cdn.sqhk.co/duwafutozi/lgcEXgh/12888883692.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476011/normal_5fda196195734.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377120/normal_601b36e698ea0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489740/normal_5ff032e9613ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479932/normal_5fe3980254a0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379846/normal_60173a490f71c.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/fejakixoweka/let_me_out_game_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/toxatoviwegipidezuxavus.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/que_es_la_crioterapia.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/pathfinder_kingmaker_class_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/axon_7_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/83262498671.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/54015155100.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_off0000c657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC657 5140 bytes
SHA-256: ec137b3c3e7e208488717e8b1f170b02de89a157992c8e0be34af8970616af4c
font_01_sfnt_off0000d7e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E5 10256 bytes
SHA-256: beb2531be67b6471df013b9928ec83896817156f170c406bd70dbd4a75d89aeb