Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bca5c3a839d55ce…

MALICIOUS

PDF

425.9 KB Created: 2022-02-22 03:56:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 056a8db4f7027b0cadb211dda9e76611 SHA-1: f36fe7a009e1a03c3d1d3ee8f12d54c60716c9c9 SHA-256: 3bca5c3a839d55ce812ff5d944111e00d50bb6b7bbe50ee2cd5f415e9b58c444
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5171

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://yoyep.co.za/XSRYdR1H?utm_term=3d+photo+creator+android PDF link annotation
    • http://www.yankey.com.tw/demo/public/editor/ckfinder/upload/user_upload/files/dakitufozulexezajoduz.pdfIn PDF document text
    • http://www.medicellbank.com/userfiles/files/22578191482.pdfIn PDF document text
    • http://poliinc.com/upload/files/monobexixovalomag.pdfIn PDF document text
    • http://delfosventures.com/userfiles/files/munenabazinazijubogixom.pdfIn PDF document text
    • http://phuongninhphat.com/uploads/userfiles/file/vigirujuwedatoseb.pdfIn PDF document text
    • https://dp-engineers.com/admin/userfiles/file/2916693577.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/6a4121567b77825ce094a5f9f1a912cb/6000072107.pdfIn PDF document text
    • http://arhive.np-sp.ru/img/file/74870883719.pdfIn PDF document text
    • http://el-master.ru/userfiles/file/82374466225.pdfIn PDF document text
    • http://fc-junajted.com/upload/datoteke/figameturujesasopojo.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613334ca0494c---88314516123.pdfIn PDF document text
    • http://dilimkebab.com/userfiles/file/saliwotamuven.pdfIn PDF document text
    • https://momsgardenfoods.com/ckfinder/userfiles/files/49121013689.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161af6341625ec---85092880337.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/vajifigo.pdfIn PDF document text
    • http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/29052165919.pdfIn PDF document text
    • http://fundacjahfg.pl/upload/file/luboxa.pdfIn PDF document text
    • http://thementalhealthadvocates.org/files/userfiles/file/9021030143.pdfIn PDF document text
    • http://clinicaveterinariamontecchia.com/userfiles/files/55399313563.pdfIn PDF document text
    • http://cana.vn/uploads/userfiles/file/47506499570.pdfIn PDF document text
    • https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/torevojajogutirad.pdfIn PDF document text
    • http://sujitonweb.com/userfiles/files/99603572476.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/161247774ecbdf---bipekofowuwa.pdfIn PDF document text
    • https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/fujotonadebovelojenaxawi.pdfIn PDF document text
    • https://tumujerrusa.com/userfiles/30055125452.pdfIn PDF document text
    • http://studiomalpocher.it/userfiles/files/visenuxunisaki.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617996a9d3b1b---bobumojurajedoxeze.pdfIn PDF document text
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161bbad2e61103---54217527475.pdfIn PDF document text
    • http://findmealocalpainter.com/insurazon/admin/userfiles/file/mirilosidelogo.pdfIn PDF document text
    • https://www.paseppe.gr/ckfinder/userfiles/files/famewisetel.pdfIn PDF document text
    • http://seikico.net/img/files/29983437651.pdfIn PDF document text
    • https://coluer.ir/documents/file/87496166939.pdfIn PDF document text
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/xotamakopa.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1611a37b830624---robawusu.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161a63e4517e27---43669062300.pdfIn PDF document text
    • https://www.cheeweitay.com/admin/kcfinder/upload/files/tapitilef.pdfIn PDF document text
    • https://usgcambodia.com/userfiles/file/nidobiwopadif.pdfIn PDF document text
    • https://www.ebenisterie-burette.com/ckfinder/userfiles/files/75819648002.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e8134b6c051---22571552862.pdfIn PDF document text
    • http://silverk.ru/img/lib/file/57509572539.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/162106d86dbfe5---2289840036.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_off00063aeb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00063aeb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00063aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AEB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006520b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6520B 10472 bytes
SHA-256: a0d706bc481e29545f104cae93fb2da972c140bdac70836f99ed6724df7b7ae5
font_02_sfnt_off000669bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669BB 17360 bytes
SHA-256: 4b9bbfd376c34d05873cca5b93537d02280dc3bc9712089ef3692e1de8dcb51b