MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier, indicating malicious intent. It contains a link farm with numerous URLs pointing to PDF files hosted on compromised CMS upload directories, suggesting a phishing or SEO poisoning campaign. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose beyond the presence of these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://tsg-vaganovskoe.ru/ckfinder/userfiles/files/97896081537.pdf In PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/4d430f0be97bd5db53721592a3bad829/kulizakibopo.pdfIn PDF document text
- https://alutat.com/data/file/fesivenipotev.pdfIn PDF document text
- https://planet-for-events.de/userfiles/file/37799291648.pdfIn PDF document text
- http://au-zlato.sk/upload/files/98813768087.pdfIn PDF document text
- http://westernmaki.com/uploads/files/37943990565.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/d03bhd80h6b6r2gh8mrjpcgr8v/fewele.pdfIn PDF document text
- http://jayeonrak.com/upfile_editor/2021/files/vefukaxav.pdfIn PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/2037c4b8a776e3ae7d4c660104fc5dc3/54854465689.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/c16c08ec2c6066f69298ab9fc57369e9/temowadi.pdfIn PDF document text
- http://ing-ka.com/user_img/file/salalemiwugaxigaxola.pdfIn PDF document text
- http://mallenmediations.com/mallenmediations/images/userfiles/file/ruxiradax.pdfIn PDF document text
- https://dongphuchuytai.com/upload/files/94305793149.pdfIn PDF document text
- http://solemarservizi.it/userfiles/files/60910412880.pdfIn PDF document text
- http://www.morrisjones.co.uk/EditorImages/file/zovopovosobigekewud.pdfIn PDF document text
- http://tecnoservizi.com/userfiles/files/7728679828.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16081450ac1a16---vatizeg.pdfIn PDF document text
- http://otohyundaidanang.com/uploads/image/files/joxaroxuxa.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1609eddb61d8c3---2236668369.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bc243c1a6c5---99706282354.pdfIn PDF document text
- http://kamerton.nl/clientfiles/nejifuzugudopomikepef.pdfIn PDF document text
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/c673492b02c821dde0e46f4126d09ab3/wozanutadaxi.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115a4a1992f8---pufigavozerufob.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/98425b084c8a54a520dcfa9be5571641/4267875089.pdfIn PDF document text
- https://eventaipei.com/upload/files/kiboroba.pdfIn PDF document text
- http://mesterek.net/tmp/74959612729.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=belajar+percakapan+bahasa+inggris+sehari+hari+pdfPDF 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_off0000e71d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE71D | 16416 bytes |
SHA-256: 608a76f59dc75a765c1da013825d73026b6776d63a36347425853ed7bdb1d442 |
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font_01_sfnt_off000111c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111C2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000129d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129D9 | 11096 bytes |
SHA-256: 02bb69e5c9a5cc50c7c1be88495093c718765020aeca18f1e2cdcd57dde79533 |
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