MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to compromised websites, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. The ML classifier and ClamAV also flagged this file as malicious, specifically as a phishing or trojan PDF. The presence of many external URIs suggests an attempt to redirect users to malicious content, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9786
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://studiotecnicolari.it/userfiles/files/56625499572.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/r18a1rjbhntknv9gcqdnnk4q50/juludunekitimemosaw.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acdc7cd6f86---damewuxuxigilewutiv.pdf
- http://solarhomepage.ch/fckeditor/editor/images/file/64098486682.pdf
- https://conexusinternational.com/ckfinder/userfiles/file/kewanewedopekedutulul.pdf
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16072b9dbd762b---walazigevad.pdf
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/28806110242.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2150374032---mumini.pdf
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1bd79a10c---5923931554.pdf
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608320f8bccc3---73785139713.pdf
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/7ed140f202e18c848bf531bd7dcfb4db/lexigepoguxomomufuwumo.pdf
- https://ildiko-szepsegszalon.hu/userfiles/file/pekuwidekuvewabeguga.pdf
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/4f206276fb57c879ad9328f4faa214e7/98902204910.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160788afe71bf4---47070911464.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/29ab789959c28f16854e8165c45ad5e9/35456949876.pdf
- http://accessiblevehicleservices.com/userfiles/file/86694781678.pdf
- https://aquafilling.com/userfiles/file/34198309698.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/g1k5np73pcirvpnm97v06ots25/17021924660.pdf
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/921e0f8a719251e1bf3a9c72d5b3ae5f/jinizorovi.pdf
- https://usssecuritate.ro/userfiles/file/15035279472.pdf
- http://uticahighclassof78.com/clients/8/89/89c70e22fe5ad1405280b455f64975d7/File/91315073576.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/0f0645fa18f2b3a76853edfbdae042cd/senagekorokofazaj.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/1l9dmg3ak1cv3im65b66bjlo4n/jujeka.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/7b64262faa4958b14b59da399f72ffd0/nakimuvaramininazikaje.pdf
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/d976430c57933e813bc17d6188e08715/vuvurunazol.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7252b8225---6414795707.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=hamlet+viewing+guide+answers
- 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_off0000f86d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF86D | 16792 bytes |
font_01_sfnt_off00011084.bin66f4cf5bc3f7ab1918907c3afe00efec02b4df0c257e754ffa6e491eaa6746ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11084 | 10712 bytes |
font_02_sfnt_off000128d5.bin9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128D5 | 16092 bytes |
font_03_sfnt_off00013e16.bin2df97e7f6e3d261994c2914ac48d82c879cea10055a1e7ad53851dab608bae45 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E16 | 17888 bytes |
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