MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://skyline64reunion.com/clients/e/ec/ec378541aa9b73e2b99de5ca5545ec21/File/19514371963.pdf In PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/34810oaqgl0kpgmfk3pn791g85/46531293670.pdfIn PDF document text
- https://uppersanduskyrotary.com/cms/files/File/womiwik.pdfIn PDF document text
- https://shiokuda2.com/contents//files/zoninok.pdfIn PDF document text
- http://zonweringbelgie.eu/ckfinder/userfiles/files/96440012440.pdfIn PDF document text
- http://namngonviet.vn/user-/files/tapifo.pdfIn PDF document text
- http://klinikoral.com/img/userfiles/files/20573662335.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/16339181447.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/5b5f7d51d2b3b7efb5ec2c7d9fbaa9dd/saporitalodofesomelev.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/82038030ae1999847f40cfe0865c5fe0/38232951446.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/56297467958.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/ova8537g0imq3kgohgk36vuup6/luzetuzefowapu.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160be0be6ce4bc---62742889131.pdfIn PDF document text
- http://www.vljainandco.com/userfiles/files/52533605187.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9b5acc6aa---sunopinenidememekujivu.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/osnd53tbgo6jn9t9jvn6o4svpt/30985508330.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160abbfecbe9ea---62551304594.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/36573118636.pdfIn PDF document text
- http://chatfieldfarms101.com/userimages/17132732845.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a518b275a64---63705026907.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/e3c902dc5f4c84114ef1af7f7934caac/47953063463.pdfIn PDF document text
- http://lapenya.cat/imgjovesnaves/file/ramuvuj.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/g5hfqpvicq48du97e8tj1o52vr/remivizakagiguxuzinanan.pdfIn PDF document text
- http://maychamsocda.vn/images/userfiles/file/jajobolasajagiw.pdfIn PDF document text
- http://hiddenforrest.net/clients/76790/File/fomaxipuwemarojeg.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=pubg+skin+hack+2020+apk+downloadPDF 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_off0000f9d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D5 | 17508 bytes |
SHA-256: 854a8391e0b90cd4b7b332fc17a6936116f0ae5a87d1b4e7ee031bfa16f2e73a |
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font_01_sfnt_off00012760.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12760 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013f77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F77 | 11124 bytes |
SHA-256: 8cf52d61a15b5b6803d30c0ca613b889f01a947635f4e06184cd583dae998101 |
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