Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd01a6f43ab0d87…

MALICIOUS

PDF

469.7 KB Created: 2022-03-12 08:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 280f5fb88996e730e624a5d621818c0d SHA-1: f893295f33727a02fdac9f8a8f4efd35db409680 SHA-256: 3dd01a6f43ab0d87b7ecbbcbc735cad239791377f16f39e0cf70fe3b64959f56
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4881

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=clinical+laboratory+standards+institute+guidelines+susceptibility+testing PDF link annotation
    • http://105chers.netsociality.com/upload/files/90616895654.pdfIn PDF document text
    • http://toroisg.com/public/images/files/32840606586.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/762ee2c75d029186bc33dccfded5d812/46994097297.pdfIn PDF document text
    • http://hsound.ro/images/custom/file/42525445088.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/pibadogajujuboxekiwafine.pdfIn PDF document text
    • http://gabinetpro.gabinetpro.pl/kosmetyczka/krakow/files/73595567872.pdfIn PDF document text
    • http://sangiaodichlaocai.com/upload/image/file/zufezinedowipenurunonuni.pdfIn PDF document text
    • https://weeb.nu/userfiles/file/72704944083.pdfIn PDF document text
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16207bcd22e26c---76927070603.pdfIn PDF document text
    • https://pasifikendustriyel.com/userfiles/file/50609944991.pdfIn PDF document text
    • https://msiutilities.net/documents/56738563605.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206eafd94501---32374021671.pdfIn PDF document text
    • http://kiszelyugyvediiroda.hu/docs/file/gebazizisu.pdfIn PDF document text
    • http://asktasi.com/ckeditor/kcfinder/upload/files/65332484306.pdfIn PDF document text
    • http://kaav.org/kcfinder/upload/files/diwafinawurujobunamibir.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/20163034708.pdfIn PDF document text
    • http://www.stts-tir.com/admin/kcfinder/upload/files/bibudesot.pdfIn PDF document text
    • https://spitalmoldovanoua.ro/ckfinder/userfiles/files/83134071203.pdfIn PDF document text
    • https://soccerauquebec.com/userfiles/file/92437291807.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/93541883691.pdfIn PDF document text
    • http://parfumerieindex.nl/images/uploads/40893791625.pdfIn PDF document text
    • https://www.miroku-jp.com/system/js/kcfinder/upload/files/fubar.pdfIn PDF document text
    • https://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/laxizivapoxuked.pdfIn PDF document text
    • http://melody-house.ru/kcfinder/upload/files/zadabupijulemop.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621dc4b2ab7fb---goboxovatotinoragoxefij.pdfIn PDF document text
    • http://megalabsrl.it/userfiles/files/58182604394.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622352b4c3b16---wewijulorepag.pdfIn PDF document text
    • https://rugsdirect4u.com/uploadedfiles/file/85105241815.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16220a64dc8e40---wixajewul.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/vofikulurobepepe.pdfIn PDF document text
    • https://www.marmaclbd.com/assets/ckeditor/kcfinder/upload/files/degatefazoxuk.pdfIn PDF document text
    • https://grouperamo.sracine.info/upload/file/kijunolesijeladapuleg.pdfIn PDF document text
    • https://investin-khj.ir/ckfinder/userfiles/files/60619474202.pdfIn PDF document text
    • https://edftrans.serwiskonsularny.pl/images_user/file/kaxowonosojupepaxad.pdfIn PDF document text
    • http://huntland.hu/upload/file/lilujakifagib.pdfIn PDF document text
    • https://tes-sys.com/uploads/ckfinder/files/20220303/16463116707705.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_off0006e233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E233 11072 bytes
SHA-256: 27a5998aaf7ab96a4c9190fd171f5e7f350d3a1960dcb194fa7c7fcce5159e74
font_01_sfnt_off0006fbca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBCA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000712e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712E5 19328 bytes
SHA-256: f7a7ca2caa9e097312d875d52756addf9221cddd80e76697f0b7afcd356b7fa5

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