MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The file functions as a link farm, containing numerous URLs that point to compromised WordPress sites and other disposable hosting. These links likely serve as a distribution mechanism for phishing lures or to download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
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 https://inwebjor.ru/uplcv?utm_term=exercice+type+bac+nombre+complexe+et+suite
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/57d59a18e40c9408b59bf3d2c24364ef/livikepibufiliruna.pdf
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/v8ar1pc2nlte87ds8c2ubnei1b/baloloneminat.pdf
- http://thongthien.vn/upload/files/jasadika.pdf
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/jrm5npba2tj5tm985dkce3jniv/46473679881.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c0ba09469b5---9837976756.pdf
- http://lovesushiscv.com/uploads/files/96449593840.pdf
- http://gintaras.cz/userfiles/file/jifepuxonuzopoxekisuf.pdf
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/94e72ed6f2eac49098c6d1fe7e471c2a/29488383240.pdf
- https://rsun.pro/admin/ckfinder/userfiles/files/89760179724.pdf
- http://yongqingtech.com/d/files/kufidebapikaworametadabum.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caebcb4008---gezojukatir.pdf
- https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/b3390eb6c7bb1557c30d306a0ee13d82/pegiviludosol.pdf
- https://samarpanbharat.org/trila/userfiles/file/70559543682.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c02b75d8ff2---megug.pdf
- https://kopari.hu/files/file/radozuwo.pdf
- https://oriental-kitchens.com/userfiles/files/vafewiwa.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc27b77a3fb---83273965069.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161034f85830bb---54097199699.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/af47h1h3hjl1k3u18m8nkacq8e/79777559136.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160d3f1992a6e9---90928860046.pdf
- https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/42295940847.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16091a5908e945---dosovo.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8b9.binee487cceddc9bc960dd4cb470e5fdcab7d6411bbee50d34c66920a2ef6c15bf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B9 | 10972 bytes |
font_01_sfnt_off0000f200.binef70b8588ffaf8e3962b5d93fa05b29ddf975031954c77ba0026487c82931bcb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF200 | 19960 bytes |
font_02_sfnt_off000125f0.bin919f1bc367624d721b2fb31ab12125a2b73dd255637d65187c7543b9c3013291 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125F0 | 16224 bytes |
font_03_sfnt_off00013bc8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BC8 | 16792 bytes |
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