Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba3342858dfa75b…

MALICIOUS

PDF

286.8 KB Created: 2022-04-28 17:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 72fb9b194462d3f0166addf0d9440ce0 SHA-1: bbbb437754ebd454b6e371581f6b408877938e63 SHA-256: 8ba3342858dfa75b480b5b1c3876dbf5e4749bc344b322c86f103280862739a4
331 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5647

Heuristics 10

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=best+cheap+android+phone+2018+philippines PDF link annotation
    • http://thaicockstar.com/ckfinder/userfiles/files/14278036226.pdfIn PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/41181255548.pdfIn PDF document text
    • http://samafb.org/uploadfilefiles/60980675012.pdfIn PDF document text
    • http://polsko-czeskieporozumienie.cci.pl/userfiles/file/puxenovufuv.pdfIn PDF document text
    • https://linhancomvn.xelinhan.vn/userfiles/file/22171964058.pdfIn PDF document text
    • http://beerskiboot.com/img/upload/file/rabukezejizob.pdfIn PDF document text
    • https://panificioilcavaliere.it/userfiles/files/63903157023.pdfIn PDF document text
    • http://safakkereste.com/kcfinder/upload/files/24347468723.pdfIn PDF document text
    • http://puginternational.com/ckfinder/userfiles/files/nejewatubav.pdfIn PDF document text
    • https://asken.as/bilder/file/zufurivakuve.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1625630a6c6176---vanemefeketi.pdfIn PDF document text
    • http://hondatayho.vn/images/ckeditor/files/19849604054.pdfIn PDF document text
    • http://www.niziointerior.pl/upload/file/24051336937.pdfIn PDF document text
    • http://td-mg.ru/uploads/files/kovukewuzidodewapo.pdfIn PDF document text
    • http://homeopathyhk.com/files/27251028754.pdfIn PDF document text
    • https://nacionalequipamentos.com/ckeditor/uploads/files/1905231983.pdfIn PDF document text
    • http://globomax.eu/userfiles/file/79262275993.pdfIn PDF document text
    • https://angkajp77.com/contents/files/68735177140.pdfIn PDF document text
    • https://test-ajpianos.lapetitemaisonduweb.fr/upload/files/66242739930.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621092e5a7ae7---3964968299.pdfIn PDF document text
    • http://studiozoppini.com/userfiles/files/22295196619.pdfIn PDF document text
    • https://digitaluzaktanegitim.com/calisma2/files/uploads/18501805902.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/o3ai9v9ciq3165afe99i5n5rs1/nexoz.pdfIn PDF document text
    • https://travelbook.kz/kcfinder/upload/files/93941056481.pdfIn PDF document text
    • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/bobodixoruxavobatotap.pdfIn PDF document text
    • https://ijieet.org/ckfinder/userfiles/files/22683088764.pdfIn PDF document text
    • http://elmasryeverline.net/public/kcfinder/upload/files/82002305303.pdfIn PDF document text
    • http://adamstore.medianet-shop.de/userfiles/editor_files/file/metamapenalamakereso.pdfIn PDF document text
    • https://expomediainc.com/upload/file/pegaworiruvurebinisotided.pdfIn PDF document text
    • http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/ragotetavetit.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/a06415d30a6de337d5ec5bd7fdf825e0/vakapunagonubusofogibewa.pdfIn PDF document text
    • https://schokofontaene.de/idata/kijorejazibijekopufi.pdfIn PDF document text
    • http://corse.annuaire-regional.com/ckfinder/userfiles/files/23709137683.pdfIn PDF document text
    • http://kidsjeodo.com/images/files/jokefezidinusuleb.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/20638228621.pdfIn PDF document text
    • http://forma8.kz/ckfinder/userfiles/files/gaxewazadojojevajazaziw.pdfIn PDF document text
    • http://adacu.org/userfiles/file/20220415032508.pdfIn PDF document text
    • http://jodhpurheritagewalk.com/images/file/tomamokagobewawa.pdfIn PDF document text
    • http://armoire-atex.com/js/kcfinder/upload/files/57104380882.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00040346.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00040346.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40346 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00041b5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B5D 11168 bytes
SHA-256: b374a677ddca039e2689cd91bc0ab841f6a5568e40fa5c5457952439558f40ff
font_02_sfnt_off00043572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43572 20204 bytes
SHA-256: 9f42d4864f8c1cd2da63f802e2e43aa6e07da602a66e2f9fdcfe83d0a5b245b7