MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users. ClamAV and ML classifiers strongly indicate malicious intent, likely for phishing or malware distribution. The presence of multiple compromised CMS upload links suggests a tactic to host malicious content on seemingly legitimate but compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://catbasailing.com/upload/fck/file/83167424342.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8ee3b683a---feseruber.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a27fc65b483---tumibikonunaled.pdf
- https://dollarplus98.com/images/upload/files/74824059560.pdf
- http://tara77.com/clients/46590/File/gidugazijapalipokit.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/11e47460a9943fe049f55565ec88fb1a/78311737741.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e76b2d20b---katoweguveduv.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608e38a201e2c---15252382708.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160aea66103bf4---67708137096.pdf
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/jsro2ehdas6r9vjoro0e934kln/91247816050.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086e07f6b7ba---34575346372.pdf
- http://vinhthuan.vn/upload/files/vuweladorigapobus.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d857842e6465f5a03edc521fc36953fd/pejivixagodamavazewepufa.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4958c46a12---pogimizegovawateragoreko.pdf
- http://foto-preiss.at/upload_files/files/besidavaposodelitewafud.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/1gqqhngpp6cfp7fef3b7899lg3/58437120371.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16073998a1163d---67748568740.pdf
- http://flygarfield.net/userfiles/file/87850665816.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160da2906ad329---75413750937.pdf
- http://greenplanetnepal.com/userfiles/file/54387979488.pdf
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/a6pd3t8lfhd75k3ifgp9nvgua2/kosegakulasigunokaputi.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/0cbfc33d27a2808d9f88c6e2b1345779/puruniwojo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=bible+verses+with+nature+background
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec74.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC74 | 16792 bytes |
font_01_sfnt_off00010486.bin83a9470f304e8d7b75020ab5dd66113c15cbf4b0eeb49173e1176d77cf00a050 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10486 | 16788 bytes |
font_02_sfnt_off0001301c.bin5cd0f62c6d4d6f2d405f90324f6760cd5d03e83a2ec435c19fa8a81a99bf3b55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1301C | 11184 bytes |
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