Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1b79b044d08623…

MALICIOUS

PDF

406.0 KB Created: 2022-03-09 01:13:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 2eaee8b73c0752592bd06f95037bf1b9 SHA-1: 4a0f8e6107811e8dc4e02796bd01bc9bfdce9a00 SHA-256: 5a1b79b044d0862326ffb9404bbeaa3b7e348250aa00ddcfea7778dfe35ea579
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5194

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://tevav.co.za/XSRYdR1H?utm_term=lesson+plan+templates+for+school+teachers PDF link annotation
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16210bc0b4d62c---32174162048.pdfIn PDF document text
    • http://formasrl.com/admin/kcfinder/upload/files/15201767506.pdfIn PDF document text
    • https://dongciao.com/uploads/files/202203081650458006.pdfIn PDF document text
    • https://htchninc.com/d/files/53809059841.pdfIn PDF document text
    • http://schneider-glossa.ru/kcfinder/upload/files/rukidaxumovugabebujobi.pdfIn PDF document text
    • http://box8websites.com/ckfinder/userfiles/files/37344603562.pdfIn PDF document text
    • https://ppic.net-line.pl/www/js/kcfinder/upload/files/zonuxogozadek.pdfIn PDF document text
    • https://gkscam.com/userfiles/file/kuzevajoj.pdfIn PDF document text
    • https://www.db-ynox.fr/ckfinder/userfiles/files/1101385744.pdfIn PDF document text
    • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/52139980486.pdfIn PDF document text
    • http://w-f-l.de/user_img/file/97842185650.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/c2bbd54d98d2a4a139fe54c7e901084e/pipizasowesavowug.pdfIn PDF document text
    • http://homelife-superstars.com/image/files/61983314285.pdfIn PDF document text
    • http://joinsocialbubble.com/cake/beta/userfiles/file/dewesuxevavutakejar.pdfIn PDF document text
    • http://www.sindcomerciarioscs.org.br/adm/kcfinder/upload/files/75979422354.pdfIn PDF document text
    • http://sincaremedicaltour.com/js/upload/97140197794.pdfIn PDF document text
    • http://venusitos.com/kcfinder/upload/files/95693484019.pdfIn PDF document text
    • http://resortvillairene.it/userfiles/files/rizajaxenet.pdfIn PDF document text
    • http://sitarofindiamd.com/userfiles/file/pupulisere.pdfIn PDF document text
    • http://psycare-spb.com/userfiles/file/vumapilovepabegalofujin.pdfIn PDF document text
    • https://zzwgjx.com/d/files/33273823574.pdfIn PDF document text
    • https://www.voyagegroupepascher.fr/public/kcfinder/upload/files/91388952392.pdfIn PDF document text
    • http://bhavalaya.org/ckfinder/userfiles/files/vetoneribuzunisu.pdfIn PDF document text
    • http://cuathepvangohaiduong.com/images/ckeditor/files/dodewufinipadesuluzedip.pdfIn PDF document text
    • https://pastijptoto.com/contents/files/pematul.pdfIn PDF document text
    • https://newtech-utm.pl/userfiles/file/45779606351.pdfIn PDF document text
    • https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/50581622727.pdfIn PDF document text
    • http://home-hj.com/up_photo/file/xarututizitum.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206d94bed006---35256309010.pdfIn PDF document text
    • https://sahyadrisevasanstha.in/userfiles/file/97095285394.pdfIn PDF document text
    • http://carrozzeriabosini.net/userfiles/files/70424388975.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/82877906657.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/162046164eb94e---ponuzorodaw.pdfIn PDF document text
    • http://www.fairvalesecondary.co.za/kcfinder/upload/files/faxufuwa.pdfIn PDF document text
    • http://geshome.co.jp/cmsdesigner/kcfinder/upload/files/75517871882.pdfIn PDF document text
    • https://searchkar.com/ci/userfiles/files/zofiwiku.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/162021142a6499---pefuduvas.pdfIn PDF document text
    • http://formasrl.com/admin/kcfinder/upload/files/xutofeburelukupo.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/rizuzewixi.pdfIn PDF document text
    • http://adgroup.co/userfiles/file/90839829096.pdfIn PDF document text
    • https://investkwik.com/userfiles/file/geluwabewunitisidanug.pdfIn PDF document text
    • http://omegabg.net/media/ck/files/zodijakefuwilevaz.pdfIn PDF document text
    • https://zippy-inc.com/app/webroot/userfiles/files/pokemeguraderenifu.pdfIn PDF document text
    • http://www.mamafoundation.cz/ckfinder/userfiles/files/kudamujivu.pdfIn PDF document text
    • http://zzps.pl/userfiles/file/76258614172.pdfIn PDF document text
    • http://mtrendgroup.com/MTrendGroup/uploadfile/fck/file/gegebebuk.pdfIn PDF document text
    • http://healthywithhart.com/res/file/talojafekonu.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
    +6 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E80A 18596 bytes
SHA-256: fc7688831891e1811b2cdfadfd517ecbec2261d7751b5621e04b68943417cf9f
font_01_sfnt_off0006176d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6176D 10612 bytes
SHA-256: b8c3ed37d489b7369376bfb96daae7f96a533b19ea5d303ead0931ffb0d9f9a3
font_02_sfnt_off00062f88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F88 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9