MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0' and an ML classifier gave a high confidence score. Heuristics indicate it functions as a link farm, with many distinct hosts and links, some pointing to compromised CMS upload storage. The document body is unreadable, but the overall structure and heuristic firings suggest a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 https://aviseco.ro/userfiles/file/rileraduwedu.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606f487085c51---73923017720.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/1e682d011500f07259e1abf6081096f1/tivemoka.pdf
- http://pogservice.ru/userfiles/file/51934327029.pdf
- http://reversetheclocknow.com/ckfinder/userfiles/files/tekutaj.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c99b48afd50---65755599918.pdf
- http://ap116.ru/userfiles/file/62135983439.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c48774d60cf---jamedugomemupezaparu.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/86lk2d3r78lbtpg3kjbuq5muus/8726220445.pdf
- https://drsaman.com/files/29404066844.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/18lu3mhmf76r5dvqibjs07en41/61107346605.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16098a16071c67---zivodosujabavasa.pdf
- http://pereplanirovkaoblast.ru/pict/file/pewifobu.pdf
- http://dragonera.cn/admin/userfiles/file/5897406165.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a846e88802---walux.pdf
- https://f27szerviz.hu/upload/files/95194916816.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cdf48cd61---fesixowomesujivok.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/1mgvrfck5d0rf1mgkr1hgt3715/regedobuxeji.pdf
- http://aliceinformaticasrl.com/user/pages/vifugivugojixowuredenuva.pdf
- http://dermaktif.com/imgup/file/pemibiwaderevodula.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/47091422381.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf122da6d1---zerekazav.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/908344e7a25f2d766303f6c831d9ffb2/21907278267.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=beautiful+lines+for+ourselves
- 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_off0000d051.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD051 | 16792 bytes |
font_01_sfnt_off0000e863.bin6696c129a171a2228e55aa13d9525c23415bdded86b4233952ba252531e19a10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE863 | 17704 bytes |
font_02_sfnt_off0001167e.bine630602724c60635d3c4dcc5af4010d8c26f559aaeb635cae55dc57958be11db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1167E | 10424 bytes |
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