Malicious PDF — malware analysis report

Static analysis result for SHA-256 b64db05c6b26e980…

MALICIOUS

PDF

74.6 KB Created: 2021-01-22 23:32:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 24011eac28078b641cea54aa1f48f58b SHA-1: cc0c7241a7782868a43f214eda12223888ae483b SHA-256: b64db05c6b26e9805cea2cd204e45bc579d7d89d411ff91b03d612d07ef2e618
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://baarspo.ru/wb?keyword=elementalist%20gw2%20stats PDF link annotation
    • https://site-1166600.mozfiles.com/files/1166600/31199472659.pdfIn PDF document text
    • http://gutemelav.22web.org/34158133865.pdfIn PDF document text
    • http://limelusefi.iblogger.org/zamuvupivowopimegeseruke.pdfIn PDF document text
    • https://cdn.sqhk.co/tedogegez/dideje8/what_colour_does_red_blue_and_yellow_make.pdfIn PDF document text
    • https://site-1184900.mozfiles.com/files/1184900/gupezeguwalin.pdfIn PDF document text
    • https://cdn.sqhk.co/norifasil/hhCJtw7/glam_doll_salon_chic_fashion.pdfIn PDF document text
    • https://site-1166068.mozfiles.com/files/1166068/patwari_syllabus_rajasthan_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/lutidofele/njaOih6/1699676526.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/labitajaxatufib/74711434612.pdfIn PDF document text
    • http://bumerezuwo.epizy.com/cornell_note_template_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/gospel_music_album_free.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/makalah_nyamuk_anopheles.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/math_answers_and_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/tubibifulavitimuxamububi.pdfIn PDF document text
    • http://bubexixan.epizy.com/checkbook_register_template_free_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/bixler_2_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/novezojosudupefuparepe.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/nelitil.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_off0000e877.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE877 5088 bytes
SHA-256: 87bc88f67837c0cb29a73b3678deebff4b0c3b494b3e710b780223defbc6e9d7
font_01_sfnt_off0000f9ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CA 10456 bytes
SHA-256: 3694d7313a0d6c8cbc203c44d1d99f26b893cb9def2b4c02387c93ac9e68e957