MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs pointing to compromised websites, indicating a link farm designed to redirect users to malicious content. Heuristics and ClamAV detection confirm its malicious nature, classifying it as a phishing or trojan distribution vector. The presence of external URIs and link farm indicators strongly suggests an attempt to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://pistant.ru/uplcv?utm_term=fear+the+walking+dead+season+3+episodes PDF link annotation
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/peretunolive.pdfIn PDF document text
- http://china-hold.com/UploadFile/file/20210918082405962.pdfIn PDF document text
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614481f09c941---70095578594.pdfIn PDF document text
- http://zopos.zohukum.com/ckfinder/userfiles/files/78879019217.pdfIn PDF document text
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kisoko.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613c78ebea447---33455214142.pdfIn PDF document text
- http://notarius.jurist-info.ru/uploads/news/fckeditor/file/mekenusinunubuxidomi.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/berujuda.pdfIn PDF document text
- http://kencert.vn/uploads/image/files/7345125748.pdfIn PDF document text
- http://kaie.org/userfiles/file/20210913010809.pdfIn PDF document text
- http://aaz.sk/editor_uploads/files/jesasakolopetovuvakipelav.pdfIn PDF document text
- http://caythuocnam.org/images/files/gopulawa.pdfIn PDF document text
- http://betonkeritesek.eu/Content/files/86185750704.pdfIn PDF document text
- http://studiotipaldo.com/userfiles/files/65299976032.pdfIn PDF document text
- http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/58976570115.pdfIn PDF document text
- http://radioevangilereal.com/assets/ckfinder/core/connector/php/uploads/files/wofivezajokirevezorunox.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16140939711188---xufavovutomapawipujafa.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/43830150225.pdfIn PDF document text
- https://pelletier-tp.fr/ckfinder/userfiles/files/27100271716.pdfIn PDF document text
- http://pasaru.com/upload/files/miwajelodekuvakepebedej.pdfIn PDF document text
- http://bishnutoursandtravels.in/userfiles/file/13438432169.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_off0000eb44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB44 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010356.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10356 | 18700 bytes |
SHA-256: 91b0048fabe03250d07a2864ee6f372911befb5143de85c08cf634c0e92ea3f2 |
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font_02_sfnt_off000133ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133AD | 10996 bytes |
SHA-256: 5923d9887966d9fef00bc83e386642657c5d38543fdc54ed5eca7dd0bc102d6e |
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