PDF malware analysis — malicious · c5d3b7c399adec96

MALICIOUS

PDF

249.5 KB Created: 2022-02-11 10:34:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27

MD5: 486ce0bf96b6b564ced3591e0b9d1bfd SHA-1: f485fbbe94159389ac1125a5673de055cf375cb6 SHA-256: c5d3b7c399adec96965db739d28cb6bc845a2b5eaaf83e60b9dc0de23b04be09

174 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.5580

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://norin.co.za/XSRYdR1H?utm_term=boerhavia+erecta+pdf PDF link annotation
- http://ruben.pl/ckfinder/userfiles/files/namolada.pdfIn PDF document text
- http://man-shoes.moscowfashion.net/content/xuploadimages/file/xogajexip.pdfIn PDF document text
- http://cwesp.biz/upload/file/mubejewifufezig.pdfIn PDF document text
- https://marathonlaval.com/userfiles/files/kodekelitak.pdfIn PDF document text
- https://thietbidiensino.vn/media/ftp/file/98915249187.pdfIn PDF document text
- http://deltools.com/userfiles/file/93885699843.pdfIn PDF document text
- http://studiotecnicolamanna.com/userfiles/files/lovapawosi.pdfIn PDF document text
- https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/zemodoketinisugas.pdfIn PDF document text
- http://www.louisianarebarcontractor.com/editorimg/file/22405642383.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/69971821419.pdfIn PDF document text
- http://parbatsamajjapan.com/img/files/files/12300092737.pdfIn PDF document text
- http://beijingxinzhi.com/userfiles/file/20211006145354_489918161.pdfIn PDF document text
- http://coffeexclusive.co.uk/kcfinder/upload/files/77874978193.pdfIn PDF document text
- http://joyearland.com/ckfinder/userfiles/files/9976337453.pdfIn PDF document text
- http://gurukripapublicschool.org/userfiles/file/84961510518.pdfIn PDF document text
- http://isdoor.ru/uploads/files/9906682312.pdfIn PDF document text
- http://www.pzkexie.com/up_files/file/xumamijuzaw.pdfIn PDF document text
- http://bacsionline.net/userfiles/file/52736960934.pdfIn PDF document text
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/928aec01dd7831b5b117c151da1574f8/nofezimotimudevuwaxila.pdfIn PDF document text
- http://alpha-cp.com/userfiles/file/6152707477.pdfIn PDF document text
- http://aostavet.it/userfiles/files/11636494709.pdfIn PDF document text
- https://europartner2.pl/uploads/vudinegosamigikatel.pdfIn PDF document text
- https://jmtours.co/aym_image/files/6821761324.pdfIn PDF document text
- http://devison-matras.com/upload/file/gewozolo.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/53689627389.pdfIn PDF document text
- https://butyfarm.mm520.net/userfiles/files/16815895881.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/mevinusakawelitapejovu.pdfIn PDF document text
- http://happyland-nsk.net/ckfinder/userfiles/files/wetutikeralizobive.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/16120dc095247d---magusijabijotedo.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/84tseungo9kd65cbvdj9kigr23/sovajewesade.pdfIn PDF document text
- https://kimcert.com/E/file/27882483335.pdfIn PDF document text
- https://mitrasuksesku.com/userfiles/file/zizasiroda.pdfIn PDF document text
- http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/vaposiwulotepowimikodivo.pdfIn PDF document text
- http://musikpark-live.de/userfiles/file/31082099518.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/161502b4ebb47c---nirupogibebu.pdfIn PDF document text
- https://hometutorsdelhi.com/userfiles/files/1548138926.pdfIn PDF document text
- https://mimpishio1bet.net/contents//files/28617143764.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 PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00034c05.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x34C05	18156 bytes
SHA-256: `2083e00bdefe35450800ff2f67c23f5298a1ac41c88e2bbe73b141dbb7da2f57`
`font_01_sfnt_off00037b00.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x37B00	14184 bytes
SHA-256: `0347e241c55e933b317886d52bef3091d4cfdf162d28a0d2fadab19665cb35db`
`font_02_sfnt_off0003a726.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3A726	10516 bytes
SHA-256: `22910a1ee171591a99c0c2546bdcc92d474e6f532b2e22c6445a05d9af1a0f86`
`font_03_sfnt_off0003bf4a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3BF4A	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`

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