Malware Insights
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and multiple links to compromised websites suggests an attempt to trick the user into downloading a secondary payload. The heuristic firings for 'PDF link farm points to compromised-WordPress upload storage' and 'Small PDF is a non-clustered link farm on disposable hosting' further support this, indicating a pattern of hosting malicious files on compromised or disposable infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 9
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/36b42b333a64698d7373a87f4efa4100/boxunolazapi.pdf In PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132271b60f83---97630350402.pdfIn PDF document text
- http://studioego.cz/userfiles/file/tatewimagix.pdfIn PDF document text
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/40827739703.pdfIn PDF document text
- http://prota.ru/upload/files/kuzaravazijotifexaji.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/roruguti.pdfIn PDF document text
- https://pestresolution.pt/site/upload/file/4678507430.pdfIn PDF document text
- http://bsa-billiard.by/images_from_html_editor/file/43855227695.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/80394102101.pdfIn PDF document text
- https://oazapiekna.com/zdjecia/fck/file/27599930241.pdfIn PDF document text
- http://konditsionery-zheleznodorozhnyi.ru/upload_picture/file/70357139587.pdfIn PDF document text
- http://apisicul.com/userfiles/files/judifipumelevuw.pdfIn PDF document text
- http://fujavietnam.com/images/Download/jarovawajafiguz.pdfIn PDF document text
- https://innovativallatgyogyszer.hu/fileok/file/84077705154.pdfIn PDF document text
- http://studiodebiaggi.eu/userfiles/files/gefunigigurolog.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/bfv99tgm12vlngk7gcmk174nnq/60819162351.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/14432868992.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-9/20210909041209847375.pdfIn PDF document text
- https://poolpoint.be/uploads/file/8296850047.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/4a3f9eb62be02ea2dc9ad3ce6ef63cb2/liwararisavuwe.pdfIn PDF document text
- https://griby.biz/ckfinder/userfiles/files/dokuzukiradevevamojora.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/68620823560.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613e6b1b9775c---60844545129.pdfIn PDF document text
- http://anchor-m.com/js/upload/files/51568623440.pdfIn PDF document text
- http://agriturismolataggiasca.eu/userfiles/files/lodogare.pdfIn PDF document text
- http://sinsg.com/files/fckeditor/file/duvikogateli.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=queen+full+tamil+movie+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_off0000c026.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC026 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d838.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD838 | 17700 bytes |
SHA-256: d13281f7ac503e9406c532bfdde70abde9469cc4020b795108855c808e18e601 |
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font_02_sfnt_off00010606.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10606 | 10560 bytes |
SHA-256: 90f187dfd841548c3e070ff19212ebd19a2fcc6409a6f3b493410ae9ee5bf64b |
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