MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to lure users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of a link farm on compromised CMS uploads is a key indicator of this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://tabularasa.lv/sites/tabularasa/uploads/documents/files/kezero.pdf In PDF document text
- http://jinanxintiandi.com/userfiles/files/zamidizugawurufiwewinaxe.pdfIn PDF document text
- http://sukhonthip.com/file_media/file_image/file/88310564674.pdfIn PDF document text
- http://pooq-design.com/app/webroot/fckfiles/file/24688231710.pdfIn PDF document text
- http://www.drivingschool-brno.cz/files/files/jowadegajilubujewopi.pdfIn PDF document text
- http://guerrazzi.info/userfiles/files/25951128724.pdfIn PDF document text
- https://tlkingatlan.hu/kepek/other/file/35126809695.pdfIn PDF document text
- http://jshanwoo.com/ckfinder/userfiles/files/68495098702.pdfIn PDF document text
- https://aljazeerahpetroleum.ae/userfiles/files/81913165585.pdfIn PDF document text
- https://driftwoodcc.com/userfiles/files/puzigedawejiweresafovul.pdfIn PDF document text
- https://kawanmto.info/contents/files/ponapiv.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613083fa5b0ad---nadefiza.pdfIn PDF document text
- https://skykharchono.mn/editor/files/lubig.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/72183287857.pdfIn PDF document text
- https://infrastone.com/userfiles/files/40744175476.pdfIn PDF document text
- http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/selumive.pdfIn PDF document text
- http://dongamold.com/fckeditor/upload_files/file/vedan.pdfIn PDF document text
- http://www.pes.edu.mn/ckfinder/userfiles/files/91028824029.pdfIn PDF document text
- http://vom-ragnaroek.de/uploads/file/fasabawekufimelepesevu.pdfIn PDF document text
- http://lobi.md/userfiles/file/tosaxuluzelewuj.pdfIn PDF document text
- https://enkaotomatikkapi.com/depo/sayfaresim/file/76835536770.pdfIn PDF document text
- https://inprovitbrasil.com/ckfinder/userfiles/files/tukalolawuwuwujotunev.pdfIn PDF document text
- https://marathonroller.com/userfiles/files/80584765749.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/420b0ec0aba55f6778ce731587cc046b/16684511843.pdfIn PDF document text
- http://oshcongregation.com/userfiles/file/giborezugotajudana.pdfIn PDF document text
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c5feede11---totijanewupukosunonudamo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=bubble+tanks+2+hacked+unblockedPDF 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_off0000c59a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC59A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ddac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDAC | 18504 bytes |
SHA-256: 1f24d127bf192a98dc70bb64915562375332d5035301543a6bb9cf53d315a565 |
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font_02_sfnt_off00010dfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DFB | 10780 bytes |
SHA-256: 840762f68e34afa9025ec6ec0c71427c10976f40d6367a01895ccbf9ddccc9fb |
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