MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to distribute malicious content or phish users. ClamAV detection and ML classification strongly indicate malicious intent. The presence of external URIs and link farms points towards a phishing or malware distribution scheme, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/k8f4lifepl6s1tuo1bol4b6lld/49853252179.pdf
- https://kajariaadsevents.com/admin/uploads/file/gexuv.pdf
- http://originalcheck.it/public/img_admin/file///bodejipakef.pdf
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be7085ea578---84797044943.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/557558f1cd6659a081ff0fdb41265cd5/tufulapizodagogijame.pdf
- https://pypconsultores.mx/userfiles/file/11374108725.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160795ff7720b9---wuferulokurixofelen.pdf
- http://aldo-ins.com/userfiles/file/20522095309.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607081498d26f---67681163251.pdf
- https://welltowork.org/wp-content/plugins/super-forms/uploads/php/files/dab160805a6bea290be131fcc3cbc8e0/38016494202.pdf
- https://bookatowncar.com/userfiles/file/sorazivelakimopezo.pdf
- http://littlepearlspublishing.in/data/eimages/file/3716294648.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085c42fa7e31---juzilunenavujadomojo.pdf
- http://parfumkin.ru/files/files/zimejugobisipafome.pdf
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/cvo120td88718kl29mh9mhdrvf/monemijezobaxatutesudomal.pdf
- http://schroniskoorzechowce.pl/ckfinder/userfiles/files/9287945562.pdf
- https://ludifrance.fr/userfiles/file/mikedijobibilirexopofivo.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1608605818598f---giramifa.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606d05fbd7f0d---kewapidozefe.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0f5dd48ab---rewowuzexemifezutav.pdf
- http://aite-materials.com/upfiles/file/46037404269.pdf
- https://cortopolis.ar/userfiles/file/lumoxudifipajibeb.pdf
- https://kompaspt2.com/contents//files/95470825211.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077a35ba478f---kamovokafozanupazupizor.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=resting+heart+rate+120
- 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_off0000f2aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2AA | 16792 bytes |
font_01_sfnt_off00010ac1.bin9bde7ce45d4c4ebf34a31d5a9edaf69883b75a6708ae513b6b289900fbdf4610 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC1 | 10560 bytes |
font_02_sfnt_off000122e7.bin15d9f22d9e3b44381a20bb0fa8ff6564725890b714e4305cc46094f242c6ad7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122E7 | 17324 bytes |
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