MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The presence of a link farm pointing to compromised WordPress upload storage suggests an attempt to disguise malicious redirects. The ML classifier also strongly indicated maliciousness. The file likely serves as a lure to deliver a phishing page or a second-stage malware payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b602110b5fb---2392458882.pdf In PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/82fc026989cb7242216880b73b9d067c/19513814294.pdfIn PDF document text
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087189d45d3d---85808780243.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/2a93a396f5b2e1dcc848a804a15e1896/91623160474.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/92af75da0d263eb5d1eb4973d2b3a135/dijugi.pdfIn PDF document text
- http://fgosvo.ru/files/files/wawiloxu.pdfIn PDF document text
- https://xetnghiemadndanang.com/upload/userfiles/files/juwad.pdfIn PDF document text
- http://alpanelektrik.com/depo/sayfaresim/file/korakizezekamojep.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/d7358825a3d0072480475499a64e8cc2/7475655557.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/vi9q64e5djnr83asjmg010ahgh/jolexunexuxosatowel.pdfIn PDF document text
- http://lavalnerina.it/userfiles/file/97782105171.pdfIn PDF document text
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075ed0cf12c4---veropura.pdfIn PDF document text
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/rgvemmpmk0mnnsciifgklpgbha/55280544906.pdfIn PDF document text
- http://aodaibooking.com/FileData/ckfinder/files/20210603_586AC59980BAD0EC.pdfIn PDF document text
- https://xuanhongkhang.com/upload/files/46208562868.pdfIn PDF document text
- https://ahirealty.in/admin/userfiles/files/70105785321.pdfIn PDF document text
- http://diversecityuk.com/userfiles/file/wigite.pdfIn PDF document text
- https://alubiasdetolosa.com/files/galeria/files/70869830155.pdfIn PDF document text
- https://www.natursany.com/ckfinder/userfiles/files/zexafilowitifivopozow.pdfIn PDF document text
- https://bodzlomu.com/userfiles/file/17854284298.pdfIn PDF document text
- https://sonntag-immobilien.lu/userfiles/files/81363010310.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/c5dbac0b396532439da391bdc244571c/pofoja.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac64b6b2e21---kedix.pdfIn PDF document text
- http://fujavietnam.com/images/Download/9441434676.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f30f2715655---96280447218.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=constant+values+in+physics+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_off0000eaee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010305.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10305 | 10928 bytes |
SHA-256: d49f427802345170fee26dbce17025214629ea818ff852785de3b3bc297ab9f0 |
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font_02_sfnt_off00011c58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C58 | 17828 bytes |
SHA-256: b1e24b54cfc2af01e3cc2f6c1fc7dd5c7c995daa8cd31b2832535081d7efcf1a |
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