PDF malware analysis — malicious · c5d8009a1aad05bb

MALICIOUS

PDF

81.3 KB Created: 2021-09-02 15:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27

MD5: eb016698893669ed4041d3925c2d2a97 SHA-1: b2fb15e430125d88b61c1cc9376d3b990b5c8182 SHA-256: c5d8009a1aad05bb5a71c3e82255ed249d5aa8f5a55b34668e6c5c7703637874

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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 https://clickkedai.com/userfiles/file/57405591436.pdf In PDF document text
- http://nriloan.jctoursandtravels.in/files/90945265230.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16127634069865---57230976062.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/161168b5ce14c6---rexazi.pdfIn PDF document text
- https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/6282pjl2768jo4blrligal9014/31861089106.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/4s9p908kilrb15ggleiursei47/gafefabixekuxinenukuwakef.pdfIn PDF document text
- http://bilafafafa.com/shopadmin/upload/files/rezejole.pdfIn PDF document text
- http://zonwering-belgie.nl/ckfinder/userfiles/files/wevoxasofu.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161029ac3db2c1---fabivegifatafalez.pdfIn PDF document text
- https://digireg.nu/upload/94449561328.pdfIn PDF document text
- http://olympusflights.com/files/files/muzujitexafoditolidipema.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850775caf84---fukexumaj.pdfIn PDF document text
- https://tomas-music.com/contents//files/fepevowinowudezuxaduvojak.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/161061a997ca99---66019946039.pdfIn PDF document text
- http://youngshiny.com/userfiles/file/1627762009.pdfIn PDF document text
- http://vswet.ru/f/wexadowudazizozi.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/iod5qcoajmpji7nakg07glt1ep/79578665663.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f536ca3b272---xexobulubopel.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=parts+of+a+sentence+test+pdfPDF 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_off0000d572.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD572	19196 bytes
SHA-256: `45b665e423a47aff8282a89d8039999b1e167d8766760513200d5423e27e9a45`
`font_01_sfnt_off00010747.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10747	10476 bytes
SHA-256: `66b5d7a8ac58608b65f74021a9f08b09c0291cffbe44f68108500ffaf74b5712`
`font_02_sfnt_off00011f3f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11F3F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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