Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f38520cec79f388…

MALICIOUS

PDF

260.6 KB Created: 2022-03-03 19:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 337a43d7f720d517a62722978c0c227d SHA-1: cedafd50ab410df58222e1b8c29021d28c97410a SHA-256: 5f38520cec79f3881a760044aa8cf87ea6a5453c27d3191b162e51bc8f7251c6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7170

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 http://autoscuolemontagna.it/userfiles/files/19507665926.pdf In PDF document text
    • http://diskacme.dk/images/upload/file/megiriwobib.pdfIn PDF document text
    • http://shannonlakeestates.org/fck_images/file/34171574923.pdfIn PDF document text
    • http://ceramicaartisticamarsalese.it/userfiles/files/veputaraw.pdfIn PDF document text
    • http://pengyou-english.com/FileData/ckfinder/files/20220206_B31338C9E0C06112.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/j81pr7shetmnide9t1arg4gfe4/judawigametokeba.pdfIn PDF document text
    • http://egresiangus.com/admin/kcfinder/upload/files/xamed.pdfIn PDF document text
    • https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/zeres.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///musiruvekukab.pdfIn PDF document text
    • http://multi-accueil.fr/ressource/site-image/files/26556048844.pdfIn PDF document text
    • http://kolarskiemp.sobotka.pl/userfiles/file/pasikiza.pdfIn PDF document text
    • http://stroykap.com/application/views/stroykap/userfiles/file/fojubotasokigokilegazel.pdfIn PDF document text
    • http://www.okstatika.cz/kcfinder/upload/files/47098741189.pdfIn PDF document text
    • http://elmarahtravel.com/public/kcfinder/upload/files/nipivisine.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621768ffa4e64---29199472744.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/2ah5pcnkcmmc80ji0sakgurcpd/jiwipuzunukipibufix.pdfIn PDF document text
    • http://fcms.nl/KCFinder/upload/files/wiletumowa.pdfIn PDF document text
    • https://shreenatharcade.com/userfiles/file/1746486100.pdfIn PDF document text
    • http://tesorosdelayer.net/imgs/images/files/gulidar.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/g234lughfdli4ff0bia8iq6bgo/pifogadarowinon.pdfIn PDF document text
    • https://alev.az/userfiles/file/reribipagifalilexajeduja.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621cdc1a8afeb---51846896405.pdfIn PDF document text
    • http://linuxnewyork.com/draft/media/81924629617.pdfIn PDF document text
    • http://hotelaronnyobilas.com/assets/ckeditor/kcfinder/upload/files/pesuwufiro.pdfIn PDF document text
    • http://www.bombillasconled.com/archivos/files/rifulosofabuzoviri.pdfIn PDF document text
    • https://kohphanganhotelandtour.com/userfiles/file/rupegitadunobali.pdfIn PDF document text
    • https://12shio3.com/contents/files/tonudafolowabela.pdfIn PDF document text
    • http://vipdiler.ru/files/file/79144005041.pdfIn PDF document text
    • http://tig-engineering.com/userfiles/file/rosatipo.pdfIn PDF document text
    • https://debo-fit.be/userfiles/file///72676437819.pdfIn PDF document text
    • http://chestheart.org/assets/ckeditor/kcfinder/upload/files/24541593281.pdfIn PDF document text
    • http://nabavke.beoelektrane.rs/files/12926656366.pdfIn PDF document text
    • https://aviatroglo.fr/IMG/file/dowamagexofefedijerajag.pdfIn PDF document text
    • http://xmzs.org/userfiles/file/xaroxazi.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/29650143130.pdfIn PDF document text
    • https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/33652046233.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/madesupokigokukabuwe.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/mk9s1n4c33345vcgatqr57rmat/38180234898.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/95859857634.pdfIn PDF document text
    • http://teormech.ru/teormech/usrimg/file/49564004144.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=collecting+continuous+data+worksheetPDF 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 extracted file (font_00_sfnt_off0003a131.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003a131.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003a131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A131 10956 bytes
SHA-256: 6cfa90a5f2200adbfd47fac37ffb168065bffb35579a3caa54327d10ba755d2b
font_01_sfnt_off0003ba6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BA6F 18020 bytes
SHA-256: fe0153ea7dafe4250dfa74b9234f1119b70fbb74c0046da241f1d7682b361311
font_02_sfnt_off0003e9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E9B2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9