Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afd510ead52646d…

MALICIOUS

PDF

356.4 KB Created: 2022-02-04 09:44:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 63791e1da689ad1d89e4784d42be910d SHA-1: 72a6d303e8258059c25b07ccf1cfbdbdfb1ceed4 SHA-256: 4afd510ead52646d5e85fde4ab72fc902fa8cbbeb3ea142b19dd0b27fd757bd2
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5053

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
  • 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.
  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=premabhishekam+movie+video+songs PDF link annotation
    • https://solucionaesp.com/ckfinder/userfiles/files/xidatanemopato.pdfIn PDF document text
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/30b33fa76498132f198be40f68c232f3/62534455889.pdfIn PDF document text
    • http://citlak.de/admin/UserFiles/file/gizabeterokarezemam.pdfIn PDF document text
    • http://mariopresto.pl/userfiles/file/ronolojususuguvufilam.pdfIn PDF document text
    • http://ngoinvest.com/uploads/ckfinder/files/11188973074.pdfIn PDF document text
    • http://look.bio/kcfinder/upload/files/melibexoretomofezaba.pdfIn PDF document text
    • http://neteyes.eu/editor_up/7366366252.pdfIn PDF document text
    • https://promoxcenter.ro/ckfinder/userfiles/files/56114288973.pdfIn PDF document text
    • http://activesites.atiks.org/files/gexojekoxabisusuzo.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1610870b50732e---weliverelutowumewif.pdfIn PDF document text
    • https://loffoxfitness.mvwebsolution.com/userfiles/files/mudediv.pdfIn PDF document text
    • http://norilsk.torbay.ru/images/uploads/file/70625371300.pdfIn PDF document text
    • https://playerpress.com/ckfinder/userfiles/files/99055773908.pdfIn PDF document text
    • http://studiophotosfashion.it/userfiles/files/39716183301.pdfIn PDF document text
    • https://myagenda.myagenda.cz/pictures/editor/files/7264148178.pdfIn PDF document text
    • http://zoekidsworld.com/userfiles/file/pivedov.pdfIn PDF document text
    • https://svetplus.com/userfiles/files/gimemogub.pdfIn PDF document text
    • http://kahounova.cz/userfiles/file/bonejazalixagexorafevasop.pdfIn PDF document text
    • http://posicert.com/upload_fck/file/2021-10-5/20211005193019456530.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f07d5f368e---90878249250.pdfIn PDF document text
    • https://izometal.net/mm/file/duguxomamezonolovobeb.pdfIn PDF document text
    • https://childrencareandliteracysociety.org/userfiles/files/39003173858.pdfIn PDF document text
    • https://matagujrischool.com/admin/imagetemp1/file/66325497214.pdfIn PDF document text
    • http://abbaorphancare.org/survey/userfiles/files/domajugomevosimupupofek.pdfIn PDF document text
    • https://dacinsara.ro/fckfiles/file/98379702948.pdfIn PDF document text
    • http://mitroc.com/userfiles/file/73141149537.pdfIn PDF document text
    • http://skoleniridicubrno.cz/ckfinder/userfiles/files/gorudizusabififobagewem.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614f5b0b7da45---18333501939.pdfIn PDF document text
    • https://ihappywash.com/uploads/files/202109041033577310.pdfIn PDF document text
    • http://csc-0411.com/userfiles/file/20211006052640_8oruli.pdfIn PDF document text
    • https://securitydm.com/slicice/file/72359770469.pdfIn PDF document text
    • http://phukiendoxe.com/media/ftp/file/vowozerebemobesazinixan.pdfIn PDF document text
    • https://mosallaesf.ir/uploads/ck/files/15378168114.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161da772b25696---61274244375.pdfIn PDF document text
    • https://bk.knu.ac.kr/ckfinder/userfiles/files/gevafidi.pdfIn PDF document text
    • https://alohasafaris.com/files/sawoxonigasidus.pdfIn PDF document text
    • http://ferramentabelleggia.it/public/file/41973016982.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000508c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x508C1 19108 bytes
SHA-256: 684298a072c1543e7f21deef380a61dd051a7910a5b4e4143b5d95b101a957a9
font_01_sfnt_off000527f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x527F1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00053f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F0C 16264 bytes
SHA-256: cc54f43de0da8eada609bdd6456111db6fecbd7071f4b141af0e28255b5da11e
font_03_sfnt_off00056878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56878 10848 bytes
SHA-256: 0a9ac73ecb6d233648417601d794f3fd59ea9b100c14632852736f8915c72eba