Malicious PDF — malware analysis report

Static analysis result for SHA-256 6241f6eec17789ae…

MALICIOUS

PDF

271.5 KB Created: 2022-03-04 02:57:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 58435466713f90388135d62bc0c81e45 SHA-1: 973756ea93ba7caef11c130d318065346d3ca1b6 SHA-256: 6241f6eec17789ae199ff9cdd519497ac9788a76ee72dc3b52d8fc6dd6d6c65e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5476

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://norin.co.za/XSRYdR1H?utm_term=affine+transform+implementation+matlab PDF link annotation
    • https://iphastkala.com/userfiles/file/xiwef.pdfIn PDF document text
    • http://stylowa-pss.pl/userfiles/file/51644652429.pdfIn PDF document text
    • http://voyagerav.com/v15/Upload/file/20222281746142527.pdfIn PDF document text
    • http://rivebistro.net/ckfinder/userfiles/files/xetavunanomuxabobileve.pdfIn PDF document text
    • http://vers-ma.de/userfiles/file/vijajixirewum.pdfIn PDF document text
    • http://writtenmail.com/upload_images/file/81034671612.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201699d45d6d---pufunimos.pdfIn PDF document text
    • https://bishopsalamatkhokhar.org/userfiles/file/papuxavopubono.pdfIn PDF document text
    • https://thehealerspoint.in/admin/userfiles/file/zawozelojadaseduziw.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/farimimil.pdfIn PDF document text
    • http://a2kat.ru/userfiles/file/kapisobadowutizedabopesi.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/file/86446896425.pdfIn PDF document text
    • https://gionggiacam.com/ckfinder/userfiles/files/zuwelozelifejanunu.pdfIn PDF document text
    • http://wamaeassociates.com/images/uploads/originals/file/53474526676.pdfIn PDF document text
    • http://xn--aknmedical-yub.com/uploads/file/lilebifajujikafo.pdfIn PDF document text
    • http://zatacorp.com/upload/files/pifizakipugi.pdfIn PDF document text
    • http://testwebb.net/kcfinder/upload/files/pasipibeko.pdfIn PDF document text
    • http://pantryscan.com/123cars/imagefck/file/56291311512.pdfIn PDF document text
    • http://studiotecnicoprato.eu/userfiles/files/80996865826.pdfIn PDF document text
    • http://ceu-jgh.org/kcfinder/upload/files/83602271706.pdfIn PDF document text
    • http://xlyz195.com/upload/file/mapuve.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/favezabiwifezilupiwiru.pdfIn PDF document text
    • https://www.sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/sirugameji.pdfIn PDF document text
    • http://www.comhairleuladh.com/uploads/files/12074523831.pdfIn PDF document text
    • http://mousike.it/img_ins/files/zowupununaboniwajejodif.pdfIn PDF document text
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/c4vjieufpcvhm552f9kli9ee8r/ladotijenawabovik.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/xonakobipijaj.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/9f492ed6447715bce6469500f653a7fc/xisipulimifugofugut.pdfIn PDF document text
    • https://hanoihome.net/img_duhoc/files/87275152478.pdfIn PDF document text
    • https://kuzeyilac.com/resimler/files/46606405277.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1621664f3b0e6b---sarupe.pdfIn PDF document text
    • https://gicz.jp/uploads/kc-uploads/tmp/files/55321663835.pdfIn PDF document text
    • http://urs-certification.com/gais/image/file/nevomep.pdfIn PDF document text
    • http://lionsmarsala.it/userfiles/files/73471412550.pdfIn PDF document text
    • http://vidol.eu/userfiles/file/93836491706.pdfIn PDF document text
    • http://szigetkoz-vizitura.hu/admin/kcfinder/upload/files/15264428667.pdfIn PDF document text
    • http://biomax.shop/filespath/files/20220227224930.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
font_00_sfnt_off0003a211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A211 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003b931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B931 10640 bytes
SHA-256: 031c6a6ce1e73aeb3ea742b68bd00d8f8953f1f23558d9f6e258acf1b6c2a611
font_02_sfnt_off0003d148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D148 19544 bytes
SHA-256: bb6bf248eb1850493f394dacb62e5cd3695ea12838aaa3a27779edc6bfee3445
font_03_sfnt_off000404f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x404F1 12496 bytes
SHA-256: 80978b3c6983d0933ae399740331482de5abf48a77ccee4931e623ad59fc35a4