MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS upload storage, suggesting a phishing or redirection scheme. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose beyond what the heuristics indicate.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9bb8cbf203---15118548419.pdf In PDF document text
- https://fetogram.ir/images/upload/files/tikitoxilulawotaremu.pdfIn PDF document text
- https://nestaerospace.com/uploads/file/9344674502.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/f2f01b91b7327eb15f639a6a96ce3e14/mavetitifilarizififubel.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609757a0bf38b---vagiwabepodojalozupine.pdfIn PDF document text
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/puxubimowizo.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/69709345016ddbcb407b6a3c8aed2b20/finoligikazimoboxafeg.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c439da01485---gozurapewerig.pdfIn PDF document text
- http://demenagements-remond.fr/userfiles/file/20210720013548.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1609320c9a6752---31002740802.pdfIn PDF document text
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074022827149---gobopomilujevuz.pdfIn PDF document text
- http://amsaneeraus.fi/userfiles/files/totunetopazorumilav.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a008d5659c2---pajexakobamavilidu.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/44158985352.pdfIn PDF document text
- http://zovsh.com/Uploadfiles/files/55091189037.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/5cc9414cf72f086e0819634e7e60a192/zatiz.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/8aganddo4kti0nirtpbjhdcf56/46723025578.pdfIn PDF document text
- https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f55c26f0c7---pagofiwexotemoki.pdfIn PDF document text
- https://tmtteks.com/files/95004441246.pdfIn PDF document text
- https://noddy.nu/images/file/mekuvazaxebokepoxid.pdfIn PDF document text
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/9ce676fb2f0887791525c5561012e509/fevinovipexewoxejufedavo.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608d428a5035e---jadijoputito.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/99601830249.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca8452fd93---karotaxata.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160f50aa8d4b4b---40195818996.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=tier+list+generator+smash+ultimatePDF 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_off0000e335.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE335 | 17540 bytes |
SHA-256: 7b04165e1ef3f8e39f1fdcca3b360607376fff09a0cc8917bdbb8256f44409a0 |
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font_01_sfnt_off00011113.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11113 | 10620 bytes |
SHA-256: 1faaf855635da06f6bf131c7a97834b6088f63e41e3da9cbb7e68478a5a5d275 |
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font_02_sfnt_off0001292a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1292A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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