Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afb6887eae584cb…

MALICIOUS

PDF

221.8 KB Created: 2022-02-05 12:04:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: dcae619cf1afb10eadf56670bda9d98b SHA-1: 2d8d684ade013a6c189ecc19153a56b40a75ee81 SHA-256: 4afb6887eae584cbff43dd0250ccb5604106dc5af5ac2caaeeaf9c7bc5e96a8e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7069

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://cafij.co.za/XSRYdR1H?utm_term=digital+citizenship+worksheets+for+middle+school+pdf PDF link annotation
    • http://hatdesechia.com/storage/ckfinder/files/fadajupusifazivovel.pdfIn PDF document text
    • http://duhira.com/uploads/kcfinder/files/novarusito.pdfIn PDF document text
    • http://www.egymast-segito.hu/uploaded/fck/file/lenubaxug.pdfIn PDF document text
    • http://vytvarnyobchod.cz/UserFiles/File/49740812923.pdfIn PDF document text
    • https://vicotelecom.vn/static/source/images/file/buvot.pdfIn PDF document text
    • http://veiligheidssloten.nl/ckfinder/userfiles/files/duwojuwanoduge.pdfIn PDF document text
    • http://maxtarget.by/ckfinder/userfiles/files/mefetudinujif.pdfIn PDF document text
    • https://soechi.com/userfiles/file/tawubixafufuluxor.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/hrkq8piqupkcm0f6vf564iprjh/rapuzipuzupev.pdfIn PDF document text
    • http://f-okinawa.com/img/tmp/files/89701954863.pdfIn PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/1eb989ac66d7dd94b91e4530ef8fc235/menomezafofisolisutum.pdfIn PDF document text
    • http://freeorden.com/media/file/javefefunisosusoririvo.pdfIn PDF document text
    • https://suacuacuontoanphat.com/upload/files/nerawabaxetemurirenileb.pdfIn PDF document text
    • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161bb68818fe12---zegitajuguz.pdfIn PDF document text
    • http://czdashan.com/uploadfile/file/2021122015110973499.pdfIn PDF document text
    • http://first-group.kr/ckupload/files/godegiwogisukudesakadir.pdfIn PDF document text
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/158bec459d7c8de3b6ecf2d99a7a62de/76066806691.pdfIn PDF document text
    • http://woori-tour.kr/FileData/ckfinder/files/20211030_69931A60FC3C6CA9.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/4197836adc62bedcbf06b4457932328a/zukowiv.pdfIn PDF document text
    • http://tostonet.cl/ckfinder/userfiles/files/47765908200.pdfIn PDF document text
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f7ed187ce74---76073110583.pdfIn PDF document text
    • http://apartamentgizycko.pl/files/file/xarajiwojinamapifunebeted.pdfIn PDF document text
    • http://www.asiacoservice.com/file/files/16171274212.pdfIn PDF document text
    • http://lonerangerfanclub.com/ckfinder/userfiles/files/14240699550.pdfIn PDF document text
    • http://zuche0551.com/upload/file/50966461502.pdfIn PDF document text
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16112982496896---40407748025.pdfIn PDF document text
    • http://ediljolli.com/userfiles/files/bimarerega.pdfIn PDF document text
    • http://stagegator.scorchmark.com/stagegator/ckfinder/userfiles/files/11728127208.pdfIn PDF document text
    • http://ninfahartman.com/clients/d/d5/d5ac6782717b6a1c58177985440d8e57/File/mejikoguke.pdfIn PDF document text
    • http://tcihk.com/userfiles/fafivadakejuju.pdfIn PDF document text
    • http://megamento.com/_UploadFile/Images/file/dofozejexanu.pdfIn PDF document text
    • https://www.antoniopopolizio.it/ckfinder/userfiles/files/roxomixufeguxagezi.pdfIn PDF document text
    • https://www.aaptuk.org/ckfinder/userfiles/files/rimupi.pdfIn PDF document text
    • http://www.ghidmariaj.ro/app/webroot/files/ckfinder/userfiles/files/katas.pdfIn PDF document text
    • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/nujofijoboso.pdfIn PDF document text
    • https://brahmagnanam.org/fck_uploads/file/725057841.pdfIn PDF document text
    • http://ping-property.com/user_img/files/tazefaxoxobogixomariz.pdfIn PDF document text
    • https://stopserv.ru/files/file/8666562569.pdfIn PDF document text
    • http://yhbinternational.com/userfiles/file/48330190068.pdfIn PDF document text
    • https://bandotrading.it/uploads/file/24371591190.pdfIn PDF document text
    • http://tokyoracing.hu/userfiles/file/kumegonix.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_off000309bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309BC 16640 bytes
SHA-256: c4d62fcb8d4d381cd27496401fababef828b75b287f1f36a2ca1fc5b277f858c
font_01_sfnt_off000334f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334F3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00034c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34C13 11308 bytes
SHA-256: d072d423cce32951dc5f976e9710769c7d48377320f6625a6f1c25960cacabb8