Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afbe505755d2924…

MALICIOUS

PDF

228.4 KB Created: 2022-01-25 05:04:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 2654e022aec1cbe1731bf39069ee9b86 SHA-1: f90df7418d4bfa64a9a5273d04d844c6b57d3000 SHA-256: 4afbe505755d29246b4d48e7f8650a59fcdfef7e7af0abb1a2ad558621915893
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8151

Heuristics 6

  • 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.
  • 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://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161ba8a0d7ad95---21611192037.pdf In PDF document text
    • http://nj-rshb.com/v15/Upload/file/2021928954124583.pdfIn PDF document text
    • https://www.thaiahpa.com/flash/files/rimolazejonasugu.pdfIn PDF document text
    • https://keralatemples.info/ckfinder/userfiles/files/66338972632.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/5iufcjs4pk9gc17q034g80iun4/67981151691.pdfIn PDF document text
    • http://mobiliteit.nu/files/kibugavoviribagunuke.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16134f4ca86718---27591714227.pdfIn PDF document text
    • http://huarui-bio.com/upload/files/7058767266.pdfIn PDF document text
    • http://casier-a-bouteilles.com/file/fadarusejigijigejirow.pdfIn PDF document text
    • http://www.tributosantafesinos.com.ar/admin/kcfinder/upload/files/xozawatabutorenagobe.pdfIn PDF document text
    • https://moveo-sport.pl/userfiles/file/nefefavizowosuvopi.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618053fcef7b1---xesomaromurupupupiboz.pdfIn PDF document text
    • http://polyacer-ecp.com/userfiles/files/20211229_003712.pdfIn PDF document text
    • http://musthighschool.mn/ckfinder/userfiles/files/zovapepuf.pdfIn PDF document text
    • http://profuturis.be/kcfinder/upload/files/kezavewixurerevavob.pdfIn PDF document text
    • http://mentoslaci.hu/admin/kcfinder/upload/files/88090375078.pdfIn PDF document text
    • http://montagnobozzone.it/userfiles/files/bijejawajupiru.pdfIn PDF document text
    • http://ji-tien.com/userfiles/file/11992174231.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1613c69c659ffd---4597081601.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/161afefde6c872---98733784865.pdfIn PDF document text
    • https://ms02bet.com/contents/files/76348421475.pdfIn PDF document text
    • http://nojacom.com/userData/ebizro_board/file/tipemu.pdfIn PDF document text
    • https://dolphinsolutions.net/ckfinder/userfiles/files/54954703435.pdfIn PDF document text
    • https://ajansnigde.com/resimler/files/zitogixoku.pdfIn PDF document text
    • https://psystat.net/candyticket/uploads/page_images/files/patepew.pdfIn PDF document text
    • https://linkevicius.com/upload/galery/file/23788633534.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/161b4f2d1a656e---fevewivejexubaluvawanovi.pdfIn PDF document text
    • http://lindendirect.com/tempimg/file/23714445038.pdfIn PDF document text
    • http://dongduong.net/Images_upload/files/wutugolukibume.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/fapunodife.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/D9plVHj2VOU/uplcv?utm_term=free+american+history+powerpoint+templatesPDF link annotation
    • 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_off000324a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324A3 10816 bytes
SHA-256: 0e8ad92c5fec9aaf0d93174cf61070ca820661c40fa744a21d2931e1e8f4c8d4
font_01_sfnt_off00033d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33D73 17072 bytes
SHA-256: e1754e465e14ac9a06d0df12e68f07842e07e76222f05247c34c98d5daef6055
font_02_sfnt_off00036a1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36A1D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336