Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f3dd8fa7a7c0c7…

MALICIOUS

PDF

306.8 KB Created: 2022-03-08 00:03:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: f99ecf1e0a8e2227a8cdce980affc5ae SHA-1: a4f92d714c9419eea15989ca6190bc52d863e943 SHA-256: 98f3dd8fa7a7c0c7784c77b58d2868c66caf5287ef6d283be5050d55afbc2e3b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7246

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://lazav.co.za/XSRYdR1H?utm_term=2010+buick+lacrosse+cxs+manual PDF link annotation
    • https://frischgeschluepft.de/kcfinder/upload/files/kafiwanasarava.pdfIn PDF document text
    • http://buafit.bg/Uploads/files/fujurejituzezurudopodetir.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161fdd64eb2b51---54195259039.pdfIn PDF document text
    • http://www.photonics-science.com/ckfinder/userfiles/files/gabemirobodajeka.pdfIn PDF document text
    • http://industrialdevices.in/uploads/64203912031.pdfIn PDF document text
    • http://alanaf.ru/userfiles/files/94561995876.pdfIn PDF document text
    • https://sanipacific.com/attachment/file/49023228789.pdfIn PDF document text
    • http://sieuthihatgiong.vn/webroot/img/files/luxudovebikuboluwikewena.pdfIn PDF document text
    • http://exito-opakowania.pl/userfiles/file/23037763984.pdfIn PDF document text
    • http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/10355172237.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/7aedf12a78a68c22c6f0a628c636e216/36360664221.pdfIn PDF document text
    • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1621838ce2541b---82500606890.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/827b5f3ef630ac08c3f31d03c2f8f723/redebofufeludojodavolewi.pdfIn PDF document text
    • http://truhlarstvi-strakonice.cz/files/file/jurivisodetenosa.pdfIn PDF document text
    • http://sgyscom.com/upload_fck/file/2022-2-27/20220227085109193808.pdfIn PDF document text
    • http://sdv.sk/userfiles/articles/file/wutezoxinemavabig.pdfIn PDF document text
    • http://www.lesboutiquesquercitaines.com/kcfinder/upload/files/54862749874.pdfIn PDF document text
    • https://hondaotohaiphong.vn/upload/files/56953838284.pdfIn PDF document text
    • http://spad.kr/userData/ebizro_board/file/wobafekufudotavetiw.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620bb17338fae---61307123705.pdfIn PDF document text
    • http://cokhihoangvinh.com/uploads/userfiles/file/wunesizona.pdfIn PDF document text
    • https://dutchhaves.com/uploads/files/202202112226457759.pdfIn PDF document text
    • https://dom4m.de/userfiles/files/vedofodip.pdfIn PDF document text
    • http://www.albertoabajolimousin.com/abm/Bibliotecas/kcfinder/upload/files/kazawubigenafimelip.pdfIn PDF document text
    • http://ssmsuits.com/kcfinder/upload/files/zebima.pdfIn PDF document text
    • http://www.bennex.co.th/assets/kcfinder/upload/files/51150362241.pdfIn PDF document text
    • http://propack-th.com/image/upload/File/nuxoda.pdfIn PDF document text
    • http://parilka.by/var/upload/file/fasamalow.pdfIn PDF document text
    • http://nislamengineering-ltd.com/assets/ckeditor/kcfinder/upload/files/dofefumasok.pdfIn PDF document text
    • https://www.ekometal.com/kcfinder/upload/files/7011340040.pdfIn PDF document text
    • https://bharatbiodiesel.com/userfiles/file/worijetovegepare.pdfIn PDF document text
    • http://zahradnisluzby.eu/foto/image/files/nosewudijazixinimupifedus.pdfIn PDF document text
    • http://restravel.ru/ckfinder/userfiles/files/94670938411.pdfIn PDF document text
    • http://kickstartfintech.com/ckeditor/kcfinder/upload/files/18059187167.pdfIn PDF document text
    • http://herborgthailand.com/file_media/file_image/file/97272068879.pdfIn PDF document text
    • http://dirk6.3pi.org/images/uploadedimages/file/watojijuvobunebepe.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_off00045bef.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00045bef.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045bef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45BEF 18052 bytes
SHA-256: 3090330977d72e37de0513fd13adde6d2929f813a52fbbd83aa9126d592e8127
font_01_sfnt_off00048b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B50 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004a270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A270 10924 bytes
SHA-256: 589925dd1d53efd14481b175ac3b416aef45b44b24ce7d6f9796abe47fcd3cd2