MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating phishing and trojan behavior. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious or phishing sites. The presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://oniceh.ru/uplcv?utm_term=take+up+lessons PDF link annotation
- http://dailymaytrogiang.com/userfiles/files/tosizerutoku.pdfIn PDF document text
- http://chieusangducphat.com/uploads/userfiles/file/tidopusajaweginezojimev.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610a04ba45ddd---87153480564.pdfIn PDF document text
- https://hotelindigha.com/FCKeditor/file/gopajabodebepuviwowumowa.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/3321c80c00f2efda4749391266313f6a/ginewododota.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/bas849iquqf7pkff88q17agq47/dekixarefozixuxovakotomox.pdfIn PDF document text
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/04ccb7fc7cc89fafa45cc91148ffd9e1/juvarasumilofanorupezid.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16071387c529bf---69662058290.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/fgbih6o9urmuo40d53q2veimcr/kupimuledivusu.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3e29f74fb5---2386385972.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612060caba209---76186972273.pdfIn PDF document text
- https://samowar.ch/upload/file/436431771.pdfIn PDF document text
- https://jxloanchien.com/style/postimage/file/bipibigatexozesigasi.pdfIn PDF document text
- https://pharma-tools.eu/galeria/file/kotigelefumi.pdfIn PDF document text
- https://sudhirsachdevaclasses.com/ci/userfiles/files/7996399623.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/a59be600d01936c29c9627380d2ddecd/jezixemap.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/vr1s3h7pipultig95gpvsv8bh8/31452251781.pdfIn PDF document text
- https://rajakeempat.com/contents/files/23067787041.pdfIn PDF document text
- https://rrr71.ru/upload_picture/pakumubejotefajowusajo.pdfIn PDF document text
- http://summithigh49.com/clients/3/33/3334069ac8a672cbece4a9536eb221cc/File/1441022181.pdfIn PDF document text
- http://famillespourstarlight.org/clients/a/a9/a9b42c05011d3bb27e7f7ec2ed30324f/File/11042292060.pdfIn PDF document text
- http://atrsara.ir/resource/files/19907619308.pdfIn PDF document text
- https://kisikana.hr/userfiles/file/2693041349.pdfIn PDF document text
- http://chromatographvials.com/d/files/tadepefafiw.pdfIn PDF document text
- 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_off0000d7db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFED | 18292 bytes |
SHA-256: bbb62583daf0d49a9e974106cedd1e4bf04cce76c21acefb7833bcc3e000b683 |
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font_02_sfnt_off00011f67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F67 | 10112 bytes |
SHA-256: f52f8b3bc84d3f7a9dbced3340ec6855a5c9f18d5b83a9a1cbea765a9ebb716d |
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