PDF malware analysis — malicious · 4e3cbf0c2a4f3694

MALICIOUS

PDF

90.4 KB Created: 2021-07-06 18:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 475adda8a52d3636f7aa13d921569781 SHA-1: 837230021be0fc0bee495b0d306fd2f705c82f40 SHA-256: 4e3cbf0c2a4f3694f034237e0f15b0d72c013ebefcf29890dae8781fce4de61a

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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
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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://globalroomplus.com/bot/ckfinder/uf/files/viditumufop.pdf In PDF document text
- http://esipro.fr/userfiles/file/45576046444.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ace6c7ac65---44462687433.pdfIn PDF document text
- http://allycatering.com/userfiles/93965599478.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/80a592b3cc468db389d59506be31b303/pufovamibubami.pdfIn PDF document text
- https://susta.vn/userfiles/file/85016630171.pdfIn PDF document text
- http://toshiba-center.ru/uploads/files/tubifexoxufip.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608156b108e14---60128345748.pdfIn PDF document text
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/6b89d4314c58c672e90864249a98c3db/ruvumarogugox.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc386e9f24---23575240367.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/f0d3bdcd8188685311ac743038cadc01/fugogebap.pdfIn PDF document text
- https://akapacha.com/userfiles/file/21715196797.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/89290381672.pdfIn PDF document text
- https://telechips.com/ckfinder/userfiles/files/17789846660.pdfIn PDF document text
- http://xn--dlek-5qa.com/admin/UserFiles/file/kesaduzalitokekalexev.pdfIn PDF document text
- http://aweibel.com/Photo/file/rewativarodomosere.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/09f15698749148fbdd637b94b37d1141/48288415556.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/toxemok.pdfIn PDF document text
- http://blissrenewbeauty.com/newerac2c/userfiles/file/70536068817.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/69fae417a9de8e492102b8d9a3d9deb1/96564539845.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=damage+to+broca%27s+area+causesPDF 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 PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010147.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10147	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00011959.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11959	16836 bytes
SHA-256: `9dd79b2acca907270ffe6d6bec33e7ebb5f59ddb5865940cbfe66cebb098d0cc`
`font_02_sfnt_off00014537.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14537	10604 bytes
SHA-256: `29f136b312bfef1404faa29c80a3cc2013ead49a3ceec320eb5ff0af50ff124e`

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