MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. Heuristics indicate this is a link farm designed to redirect users, with ClamAV identifying it as a phishing trojan. The ML classifier also strongly flagged the PDF as malicious. The document body is heavily obfuscated and unreadable, providing no direct content clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/8b7e25b55e0e62388ea3fe8ee7a5ff36/robevutaxa.pdf In PDF document text
- http://hide-bo.com/img/tmp/file/5980004949.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/15215822418.pdfIn PDF document text
- http://fashionflutters.com/ckfinder/userfiles/files/rudumugefotatusekim.pdfIn PDF document text
- https://orangcar.com/app/webroot/upload/files/80951230855.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/67582caf9c7336a3fb71b0372190dc86/bitokokuro.pdfIn PDF document text
- http://stylekd.ru/files/13846909090.pdfIn PDF document text
- http://designgaleria.hu/userfiles/file/tujurogibazudu.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16150a421caa13---nifefuvuvewot.pdfIn PDF document text
- http://autavrabek.cz/obrazky/file/43142888895.pdfIn PDF document text
- http://bobhendrix-law.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sesuti.pdfIn PDF document text
- https://dlt-nkp.com/fileupload/file/faxewugazeg.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/dgq68u55kp4tp02b6l2tt9uoje/vepiliviletufofo.pdfIn PDF document text
- http://bacvietexpress.com/upload/userfiles/files/tobadam.pdfIn PDF document text
- https://associazionemusicaviva.it/uploads/file/puzepozusavi.pdfIn PDF document text
- http://dogoxuavanay.vn/uploads/files/wowivosipexiduze.pdfIn PDF document text
- https://em.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/93490521559.pdfIn PDF document text
- http://bike-aholic.com/UserFiles/file/44638998694.pdfIn PDF document text
- http://parejalecaros.com/adjunto/upload/fck/files/42066617137.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/edcd2db88eece43a9af3a99c327c7fe6/jalukija.pdfIn PDF document text
- http://homeloanz.net/images/e/file/74683187940.pdfIn PDF document text
- https://x-software.cz/data/file/lutedosawosukiz.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613fab9d72b9c---tiwusabizekesevalevujexon.pdfIn PDF document text
- https://lorus.rs/files/rasokapijimowidam.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=good+fast+cars+under+5kPDF 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_off0000b268.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB268 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA7A | 16196 bytes |
SHA-256: c99cddaf0e59cf7f984eaf8d2cb825d2e7d2b87d4b66e26a129feeef3c6b05e0 |
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font_02_sfnt_off0000f382.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF382 | 10696 bytes |
SHA-256: 439feb027be22b2f444e6528135f87d5a920c8b996fcf9708f9063e3681978f1 |
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