MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. It contains a link farm pointing to compromised CMS upload storage and disposable hosting, suggesting an attempt to redirect users to malicious sites. The presence of external URIs and a high ML score strongly support a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://sanarina-coaching.de/ckfinder/userfiles/files/48307194680.pdf In PDF document text
- https://supermagnum-bg.com/userfiles/file/wojuroradesovedonufov.pdfIn PDF document text
- https://smartech.lv/sites/smartech/uploads/documents/files/67708317551.pdfIn PDF document text
- http://khyljg.com/uploadfiles/files/gifunoxuwuju.pdfIn PDF document text
- http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/milizofirakowelesi.pdfIn PDF document text
- http://efuturesthai.com/uploads/file/56653486719.pdfIn PDF document text
- http://musicincw.com/fckeditor/userfiles/image/mutipuxukigosiwarajiwo.pdfIn PDF document text
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d2b2fde93ac1e1ee763d9e4e18edf658/wefuzug.pdfIn PDF document text
- https://zzwgjx.com/d/files/newidawezoledazajogutaso.pdfIn PDF document text
- http://pactolous.hu/upload/file/jazudevekixavexuposibal.pdfIn PDF document text
- https://clubon.top/uploads/files/99783791184.pdfIn PDF document text
- http://epwuae.com/userfiles/file/biligajefafosala.pdfIn PDF document text
- https://viettrungson.com/media/Files/dimotek.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/31658898934.pdfIn PDF document text
- http://maxbrio.kr/files/files/fofopetirime.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/c9da60cbd086e04fa6e249d195c7c531/merux.pdfIn PDF document text
- http://artdealer.vn/upload/fckimagesfile/37f8396d531ff2398f8c2607c94d5c3d.pdfIn PDF document text
- https://btegypt.com/file/95315292465.pdfIn PDF document text
- http://sumbulefendiegitimvakfi.com/resimler/files/wegazefaxatababutobite.pdfIn PDF document text
- http://myappartement.de/web/editor/files/wofuzeguzusepixerejof.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ced444049f---vopogobumapoxevapag.pdfIn PDF document text
- http://mardeestilos.es/fotos/file/46517881849.pdfIn PDF document text
- https://epiphanych.com/images/file/65318055831.pdfIn PDF document text
- https://osakaav.com/userfiles/files/fefikofeta.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=stock+camera+app+for+androidPDF link annotation
- https://b2cdemo.tickets.com/content/files/50890634233.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_off0000d271.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD271 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ea83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA83 | 18124 bytes |
SHA-256: 388fe85e90627aa543e15e7103f40444fe93c5b4fa5a2ac93dd6ffb52d9ebbc6 |
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font_02_sfnt_off000119c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C1 | 10736 bytes |
SHA-256: 2d6c5c1a27b0fc9d64f3265e2633a3f676a0e207eccf4dbfc76c1225d3b77ed7 |
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