Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3e3700c36519e3…

MALICIOUS

PDF

310.1 KB Created: 2022-03-16 11:59:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 4e0a1511be9b3c6a6393735065d4e54c SHA-1: 712a0a22533e98a65089ba4e44c9964851cd5a49 SHA-256: 5f3e3700c36519e3368c3d9d1347fab94c8b6f8912da55b2603870de8994b903
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7501

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://savemaxint.com/files/file/lavapekizapisomemuwenuzo.pdf In PDF document text
    • http://ugyved-szaknevsor.hu/media/files/94259175094.pdfIn PDF document text
    • http://shasenconsulting.com/assets/ckeditor/kcfinder/upload/files/18016837501.pdfIn PDF document text
    • https://wwa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/41027779229.pdfIn PDF document text
    • http://dieta-plus.pl/userfiles/file/17410378748.pdfIn PDF document text
    • http://ahkjt.com/upfile/file/40136467402.pdfIn PDF document text
    • https://hondamienbac.vn/userfiles/file/18312982324.pdfIn PDF document text
    • http://chongros.com/userData/board/file/82770595201.pdfIn PDF document text
    • http://poliinc.com/upload/files/bedukaru.pdfIn PDF document text
    • https://hobbyschuurtje-webwinkel.be/images/userfiles/file/kubumupidimufuw.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1621bd8c092232---kovogijubapo.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/qlk1h2ddl7qskcnhcvh4dme3a0/81307048365.pdfIn PDF document text
    • http://heorungminhphat.com/luutru/files/90413233562.pdfIn PDF document text
    • https://www.cygnusdvlp.in/nitdurgapur/uploads/editorUploads/userfiles/files/53057201786.pdfIn PDF document text
    • http://blekinge.boj.se/uploads/userfiles/files/kutiwixurinifud.pdfIn PDF document text
    • http://okuninka-biale.pl/userfiles/file/zerufozexesibibijunuxi.pdfIn PDF document text
    • http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/57792938829.pdfIn PDF document text
    • https://lux-ride.com/home/u4-6pzgszajsb5u/www/lux-ride.com/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/35044111427.pdfIn PDF document text
    • http://phunggia.biz/userfiles/file/92296534032.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/42004300756.pdfIn PDF document text
    • http://mesterteto.hu/userfiles/file/zerewamitogomavudaxitez.pdfIn PDF document text
    • http://standartbio.com/fckfiles/file/maronebetowuwewemuvure.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/gonukofareli.pdfIn PDF document text
    • https://keuangan.artadev.com/assets/kcfinder/upload/files/18957117736.pdfIn PDF document text
    • https://cogi.sed-hut.pl///files//editor/file/60027167508.pdfIn PDF document text
    • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/13397225404.pdfIn PDF document text
    • http://riverside.tw/user_upload/files/zerazurineroxajaresafux.pdfIn PDF document text
    • http://gd-weimi.com/upfolder/e/files/20220207192740.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/vazinudi.pdfIn PDF document text
    • https://www.cvr2021.scrs.in/kcfinder/upload/files/bigebukoxaxubopumakuv.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=ariens+classic+24+snowblower+manualPDF link annotation
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216562027584---79910092032.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 extracted file (font_00_sfnt_off00046641.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00046641.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00046641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46641 10800 bytes
SHA-256: a9f6c7c976a41ed8e0bb32362926391fe8ca394f519012f8155a1bd6f36f0483
font_01_sfnt_off00047f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47F4C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00049667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49667 19344 bytes
SHA-256: c6f0d3b0c905676ff10d5fa4032b0a3b307619c624ad210eef465ee4d95607a6