Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de3fdc702264e51…

MALICIOUS

PDF

329.8 KB Created: 2022-03-05 13:09:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 41a610347f8f2122941f8cd914742a92 SHA-1: 649a11872cb00326d78c73af1118def7f666d67f SHA-256: 4de3fdc702264e51afffc9978609146e50ff89840648ce82da71cbc7f2d6044e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

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://cafij.co.za/XSRYdR1H?utm_term=attendance+register+format+for+office+with+time PDF link annotation
    • https://medarbindia.org/ckfinder/userfiles/files/30946508910.pdfIn PDF document text
    • http://chronoflex-dz.com/app/webroot/assets/js/kcfinder/upload/files/gerakuk.pdfIn PDF document text
    • https://ehilteknik.com/uploads/files/66488573083.pdfIn PDF document text
    • https://xn--80aujdnb8a.xn--p1ai/kcfinder/upload/files/ziwazawemaw.pdfIn PDF document text
    • http://srisbs.com/kcfinder/upload/files/fasibiwudarip.pdfIn PDF document text
    • http://svadbavmoskve.com/content/xuploadimages/file/3523462083.pdfIn PDF document text
    • http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/51519001695.pdfIn PDF document text
    • https://alutat.com/data/file/pifekigukigosurezos.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201570e5876c---bisewepoxovefadax.pdfIn PDF document text
    • http://livilgirls.com/files/wimedubukamoxaxukalitomu.pdfIn PDF document text
    • http://www.e-glasso.pl/galeria/files/93478045103.pdfIn PDF document text
    • https://kiptep.ru/file/58911430288.pdfIn PDF document text
    • https://verdadeon.com.br/kcfinder/upload/files/remijukefetofekudiduto.pdfIn PDF document text
    • http://greensquares.in/userfiles/file///xuzijululoxilawe.pdfIn PDF document text
    • http://cornerstonelaw.eu/userfiles/file/21732740699.pdfIn PDF document text
    • https://fishboat.hr/files/49585978014.pdfIn PDF document text
    • https://www.luxboss.com/ckfinder/userfiles/files/37050008283.pdfIn PDF document text
    • http://carzip.biz/files/uploads/files/gujotevugozitofom.pdfIn PDF document text
    • http://sinosteelcode.com/filespath/files/20220211004952.pdfIn PDF document text
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1620473f5c73c1---nivenugobututoxetufakufo.pdfIn PDF document text
    • http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/mijotu.pdfIn PDF document text
    • http://noithatmyhome.com/img/files/bopoxitu.pdfIn PDF document text
    • http://lasantitosrestaurant.com/userfiles/file/15654954426.pdfIn PDF document text
    • https://taumed.kz/upload/2022/02files/220228202231796923b4j19.pdfIn PDF document text
    • https://mystruggle.uk/indigo/ckfinder/userfiles/files/57849356877.pdfIn PDF document text
    • http://bannhuaduong.net/upload/files/fajoxagarup.pdfIn PDF document text
    • http://centrodebridge.pt/ckeditor/kcfinder/upload/files/80276792054.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_off0004bbd5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004bbd5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004bbd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BBD5 17148 bytes
SHA-256: 379863b001dab72588bd2ff1024898e37a2521ae8abb3f1725c33ded8d34d64e
font_01_sfnt_off0004e7fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7FC 10944 bytes
SHA-256: cbfba1a6d60eac96476d84c2efa4f90bd77a0ab322c4b37a854da18cdf832dae
font_02_sfnt_off00050113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50113 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9