Malicious PDF — malware analysis report

Static analysis result for SHA-256 685325f19d13d9cc…

MALICIOUS

PDF

69.7 KB Created: 2021-02-15 03:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 369d925f8d3f10421efb5aff36b7c341 SHA-1: 25ab48a3eec44ba57ee02bc10a235487655a8f62 SHA-256: 685325f19d13d9cc3e0872778251948031a793e9e9a6eb74f91deeb5754e12ff
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/aws?utm_term=pokemon+go+lure+evolution+guide PDF link annotation
    • https://cdn.sqhk.co/vumorumuvogi/hduvTih/dumb_ways_to_die_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/satofurijob/ghgdegg/nail_salons_open_on_sunday_mobile_al.pdfIn PDF document text
    • https://cdn.sqhk.co/gitopedevid/fiapy9O/fexiretatilemataged.pdfIn PDF document text
    • https://cdn.sqhk.co/tazuxalana/ehm34nj/soccer_star_ultimate_hero.pdfIn PDF document text
    • https://cdn.sqhk.co/pojuwudedi/N7Xibia/9447149858.pdfIn PDF document text
    • http://rerulekoba.66ghz.com/eos_6d_mark_ii_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxudofexal/ajfge2v/negozaxisisetubovukageju.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/a7shfig/fukanowupenuditolanofa.pdfIn PDF document text
    • https://cdn.sqhk.co/piwizogir/ajfKgeT/92351551358.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sogigadataga.epizy.com/adobe_creative_cloud_desktop_application.pdfIn PDF document text
    • http://kurivixudenetiw.epizy.com/offline_car_games_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/delf_a1_book_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/breaststroke_swimming_technique_for_beginners.pdfIn PDF document text
    • http://zisuvedo.rf.gd/gumasikiro.pdfIn PDF document text
    • https://s3.amazonaws.com/natewared/gipimajofevuwirozazi.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_off0000d3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FE 4880 bytes
SHA-256: 6bd6a6f0831412f9631486a03c8df2dfecad8f2c83c5da107c93fd205a7462a9
font_01_sfnt_off0000e48e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48E 10508 bytes
SHA-256: 98d4d3fdc34c21b1566860c215179d03d00d5cd27456ad6b26b24f3d788086b5