MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file functions as a link farm, containing numerous URLs pointing to compromised websites and disposable hosting. These links are likely intended to lead users to phishing pages or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://dienlanhbachkhoa.info/upload/files/luwomepuxidibux.pdf
- http://daedukgs.com/admin/fckeditor/data/file/20210626020357.pdf
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a94ab04cb90---86782392690.pdf
- http://mea-travel.pl/userfiles/file/fobulutagaperozo.pdf
- https://amblamy.ee/upload/file/57089727342.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dcn20h2otn0at8s33lu35rlr57/22169421443.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7df900e53---55884442599.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/25252434158.pdf
- https://rybczewice.pl/userfiles/file/36214518893.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160ada1909adbc---zabonojuferagemimepuw.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/7d306a864ad5434dd8561c67d4d66990/famusenanedumugotak.pdf
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/bf31ca63f55743f1de78dfa0f5aa8a22/xaritupisizebibivajoporo.pdf
- https://roeveragri.ac.in/wp-content/plugins/super-forms/uploads/php/files/a7cc12bb7cb5c53387f8dd19f120fddb/zojopavogo.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0f9630977---lobejunosovobafep.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/b8gf3ihe1iueasl9eun3cdovk0/73009683477.pdf
- https://salvatoredivilio.it/userfiles/file/16824211765.pdf
- http://www.lugashotel.com/data/editorfile/kemepexikedefof.pdf
- http://nadiadsa.org/userfiles/file/rufaboromulupir.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/7d18f3fff54030c3b2d2d162820cf9a4/nupinolixabofi.pdf
- https://alshaabcoop.com/userfiles/file/fowoxuzolas.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607d59151e152---zawukeli.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=what+color+do+you+get+when+mix+blue+and+yellow
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/1bf1c2679ce87490dc61af67aee0d3d3/1375110020.pdf
- 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_off0000e891.bin7339c7c7f08a656054befc384640d72ad94668060bafd19576fdbcfff2127d31 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE891 | 16552 bytes |
font_01_sfnt_off00011394.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11394 | 16792 bytes |
font_02_sfnt_off00012bab.binebdb960cc9a92c4fde57acd828ea6addbf868becff5bcf1500ceba4378cd97f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BAB | 11184 bytes |
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