Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2b3cdd7c7b6597…

MALICIOUS

PDF

366.4 KB Created: 2022-03-18 11:25:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: ea5f950918f5818dbc3cbf1100944256 SHA-1: 985f5e6dee83553562304e93b4f77b70149db0f4 SHA-256: af2b3cdd7c7b6597a2fea95c585758e13ec07b433591ee1a2d5d052f9d21b8c7
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6526

Heuristics 7

  • 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.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=cambridge+a+level+chemistry+revision+guide PDF link annotation
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/162211f6d3b5ff---22094160528.pdfIn PDF document text
    • https://9275522-travel.com/userfiles/file/630267056.pdfIn PDF document text
    • https://ru-tech.interspeedia.com/userfiles/file/datobosojuwonarizanesuk.pdfIn PDF document text
    • https://hgd.hr/admin/kcfinder/upload/files/mebut.pdfIn PDF document text
    • http://getsolarnj.com/userfiles/file/76002281733.pdfIn PDF document text
    • https://sealskinz.ru/files/file/31725326985.pdfIn PDF document text
    • https://floraplant.gr/FCKeditor/userimages/file/kitubejelobesotuju.pdfIn PDF document text
    • http://aleksandriya.topmebli.com/content/xuploadimages/file/33096888466.pdfIn PDF document text
    • https://nepalonetours.com/userfiles/files/41641881507.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162007df1631f7---63216435623.pdfIn PDF document text
    • http://www.forsheda.se/admin/kcfinder/upload/files/94132429890.pdfIn PDF document text
    • https://www.xtraordinaire.org/web/kcfinder/upload/files/92386390219.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/24479338932.pdfIn PDF document text
    • https://sportsfeats.com/app/webroot/js/kcfinder/upload/files/kefusujegigogeve.pdfIn PDF document text
    • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/dc4742f8476c67eca80fd70ac680ea73/miduxopujonojajisiteduk.pdfIn PDF document text
    • http://www.anapharmata.hu/ckfinder/core/connector/php/files/vodewun.pdfIn PDF document text
    • https://vietnamwelder.vn/uploads/news_file/61951896062.pdfIn PDF document text
    • https://akilanews.com/ckfinder/userfiles/files/83065528129.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/24lhfqncu7jmt4gd5g24fiu69e/pejesomesuvokekuwigup.pdfIn PDF document text
    • http://mkaudio.vn/app/webroot/uploads/files/95299098430.pdfIn PDF document text
    • http://otworz-biuro-podrozy.pl/userfiles/file/tegabezobi.pdfIn PDF document text
    • http://eldorautomaticgates.com/UserFiles/file/23922105846.pdfIn PDF document text
    • http://digitalpolicycouncil.com/imagenes/file/31514655748.pdfIn PDF document text
    • https://staffinghub.complifly.com/ckeditor/kcfinder/upload/files/63874228702.pdfIn PDF document text
    • http://mitrasejati.co.id/assets/kcfinder/upload/files/94510566668.pdfIn PDF document text
    • http://bfup.org/ckeditor/kcfinder/upload/files/nuvatojujuruwepopatib.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/dutadukof.pdfIn PDF document text
    • http://ciudadaniadesdeelaula.com/kcfinder/upload/files/56747175918.pdfIn PDF document text
    • http://exmar.it/foto_fck/file/migijevopimubu.pdfIn PDF document text
    • https://cissud.com/uploads/ck_editor/files/6957472502.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16221576089e2b---nitijajipegabunotub.pdfIn PDF document text
    • https://ewt.cz/res/file/fejisekubekomibavuledazuf.pdfIn PDF document text
    • https://thietbivesinhsonhoa.com/webroot/img/files/49527588971.pdfIn PDF document text
    • http://kalecikliyiz.biz/panel/kcfinder/upload/files/65773606599.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000547b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x547B7 18488 bytes
SHA-256: 33daacd5b0727e56de3ce94252469c14aa51302847eb81b9604de34cb6ce7165
font_01_sfnt_off00057824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57824 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00058f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58F44 11268 bytes
SHA-256: 18fd786ffb2d21951308a66eac805c10ebd887226544537da34807458c0bac94