Malicious PDF — malware analysis report

Static analysis result for SHA-256 48f4eaefe1ac9b17…

MALICIOUS

PDF

78.2 KB Created: 2021-02-22 18:40:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 33ace7abe269947074a4d21c7aabbdc8 SHA-1: 6ec0c802e9491fd3692c6e9cf6e607429ce56609 SHA-256: 48f4eaefe1ac9b17b9ed6ffc335c8fcaba35809191640cbb7f1b7efb57b6e695
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/wb?keyword=used%20alto%20shaam%20cook%20and%20hold%20for%20sale PDF link annotation
    • http://3gusevshop.website/zuwibekeffutyr.pdfIn PDF document text
    • http://getplafond.xyz/707228674652yp1l.pdfIn PDF document text
    • http://sakhavto.ru/magnesium_sulphate_asthma_guidelineseqlis.pdfIn PDF document text
    • http://lavka-karamel.ru/cloudy_with_chance_of_meatballs_2_barry_toyizx4q.pdfIn PDF document text
    • http://temilops.xyz/cricket_score_sheet_excel_spreadsheetwttuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392472/normal_5fd7f52ef1835.pdfIn PDF document text
    • http://wofupovuneraja.iblogger.org/79551996714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446286/normal_5fdac9ebbbfbe.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/gavobawum/h_d_wallpaper_love.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/41381533882.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/button_phone_java_games_free.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/lake_dalrymple_fishing_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/ncaa_clearinghouse_information_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/simple_present_exercises_esl_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/nupulolaximebigomikitet.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/amplifier_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/dumbledore_s_army_minecraft_guide.pdfIn PDF document text
    • http://dukedofabi.epizy.com/zilafa.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_off0000f3b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B8 5316 bytes
SHA-256: 3344934f10f05099e2548a02eec041cb1a07416dd7ea48c9c4a3aae764e537f1
font_01_sfnt_off000105a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105A5 11392 bytes
SHA-256: 2c400c1a41ef49d622499bef28b505ba767c302799006043230bf7ce3c122da6