MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, suggesting a link farm designed to redirect users to potentially harmful content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://cmtdental.com/upload/ckimg/files/pinobofixevimerokasiva.pdf In PDF document text
- http://septumdent.com/img/userfiles/files/xunodadax.pdfIn PDF document text
- http://thepokeluau.com/uploads/files/dufetipubijerodi.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160757137d8dcf---vijimameropajopojo.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/rivesapola.pdfIn PDF document text
- http://skrn.cz/pic/file/sibapiti.pdfIn PDF document text
- http://ambulatorioveterinariomariani.it/userfiles/files/dewoxonod.pdfIn PDF document text
- http://kukubara.com/zdjecia/file/xujijisojonabo.pdfIn PDF document text
- http://veterinariogiardinelli.it/userfiles/files/lusuremepagupubixagefigi.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bd506778f48---14491331905.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/o99kjdkjtrfsb01l8d7o91og80/lalabikesadero.pdfIn PDF document text
- http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/karujutomebakagamikofeku.pdfIn PDF document text
- http://www.urbanwaterways.info/files/sizasexibiguvipuf.pdfIn PDF document text
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/2f056350fd4902967b5203c8acd27f1f/sadoniwag.pdfIn PDF document text
- https://cleaner.pl/userfiles/file/14459669171.pdfIn PDF document text
- http://linkipt.com/_UploadEditor/files/8759071004.pdfIn PDF document text
- http://apluskleaning.com/admin/images/file/dufavetepuge.pdfIn PDF document text
- http://happypalettebnb.com/CKEdit/upload/files/jarixozutelo.pdfIn PDF document text
- https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/kebadid.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088720f4eef2---51122354478.pdfIn PDF document text
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/1a5c8d5690f2c7edf3528c30edae9cb2/62606795463.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16097b8ed7c215---kuxorebokuroz.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/9c677ada073fc938499cc3651e5aab0f/wugamelar.pdfIn PDF document text
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/6ac2da2142ccce6f8ada8cdb2020f886/kureseru.pdfIn PDF document text
- https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca6bebf541---38566046809.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=rice+cooker+rice+instructionsPDF 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_off0000f451.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF451 | 10252 bytes |
SHA-256: f1a631c7a32f12f2fc7ecaf1a4e4588698821133c27c65832c376d113eb8019e |
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font_01_sfnt_off00010b8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B8A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001239c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1239C | 17032 bytes |
SHA-256: a46b8b8fa8abc14a5bd9b81d405a1849ad045e877ac26ea1fb46c8ac9e75afdf |
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