Malicious PDF — malware analysis report

Static analysis result for SHA-256 366f260579e3cd6a…

MALICIOUS

PDF

72.3 KB Created: 2021-02-27 19:47:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e4ce44bcf3195c8ba488cca5a1cc1473 SHA-1: eda6ec21d7aa9b92f49e2ab8dc81d00be5e32c3f SHA-256: 366f260579e3cd6a11a2e640393daa9fd5d45748f05a5eb6bade7c34b7886c4d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/award?keyword=what+is+the+general+wave+equation PDF link annotation
    • https://cdn.sqhk.co/gukisafuw/Q6G9jg6/72401_weather_forecast.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwevini/ichejjf/super_bass_music_player_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386618/normal_6005492a3eac4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367297/normal_600a2929122f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499999/normal_5fe23e301b4e8.pdfIn PDF document text
    • http://salet.store/will_hugo_weaving_be_in_matrix_4os3d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404112/normal_5feed32943eeb.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/jc9hagh/37206836136.pdfIn PDF document text
    • http://fisujerekuvij.getenjoyment.net/fedimure.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/itEarmz/ball_hitch_for_john_deere_lawn_tractor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484169/normal_601bddf2e43d0.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/Njfhhtc/kenuw.pdfIn PDF document text
    • http://bit-ipo.ru/medical_biochemistry_books6f2lv.pdfIn PDF document text
    • http://lenudes.com/bufosizomiberekaxtuka.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445125/normal_5fcdb4197a30f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2C 5236 bytes
SHA-256: ad209a6ebbb8098d2be85a04fb9155d88ba6437564a51fbe7b89ea312d091b85
font_01_sfnt_off0000f113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF113 10240 bytes
SHA-256: 93f9062a1818154ee605ffabf446ea754a3a9a7f6335b48c6470b7f8b7473f50