MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm with numerous URLs, many hosted on compromised CMS uploads or disposable domains, designed to redirect users. The primary attack pattern involves luring users to external sites through a deceptive document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://webcertain.asia/contentupload/fckeditorUploads/organization_/file/95441007903.pdf In PDF document text
- http://basse-normandie.annuaire-regional.com/ckfinder/userfiles/files/geferatawozatu.pdfIn PDF document text
- http://www.fonfe.com/uploads/files/42687332934.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/qvco3ml1i8gj0d8pt1c61lfjb2/pibinixapetodem.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161385f3152c04---76208527486.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/riditosadomubazamemeziki.pdfIn PDF document text
- http://sino-web.net/filespath/files/20210906043853.pdfIn PDF document text
- http://candemdientu.com/Images_upload/files/51290827363.pdfIn PDF document text
- http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/23196108410.pdfIn PDF document text
- https://infypos.com/infyposcms/media/xesikinewitok.pdfIn PDF document text
- http://gpkoaee.ru/ckfinder/userfiles/files/zufubafez.pdfIn PDF document text
- https://dallaslandscapedesign.com/media/files/25449171648.pdfIn PDF document text
- http://abwsalisbury.com/uploads/files/dobevorelezez.pdfIn PDF document text
- http://alptw.com/images/files/wiwuruzezifuje.pdfIn PDF document text
- http://palmdale.thepokeluau.com/uploads/files/54463842538.pdfIn PDF document text
- https://mrdak.cc/uploadfile/files/10106582276.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/327b013ec7d1f98778dee23dc261693a/bowotijevos.pdfIn PDF document text
- http://onishi-kyosendo.jp/archive/wiboxudoposugepane.pdfIn PDF document text
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/31101207829.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1612f792ba4e79---29609927554.pdfIn PDF document text
- https://wtmasonry.com/ckfinder/userfiles/files/65446336977.pdfIn PDF document text
- http://toitureetfacade.fr/data/Files/rezavunasur.pdfIn PDF document text
- http://tvoirostov.ru/ckfinder/userfiles/files/minazubegokemigobixusuti.pdfIn PDF document text
- https://machnhaduong.com/images/uploads/files/63384425322.pdfIn PDF document text
- http://usa-ex.com/images/blog/file/13094245054.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16135a1775ccdc---sidegupezudovawo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=convert+hex+to+ascii+c%23PDF 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_off0000ba0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA0B | 10480 bytes |
SHA-256: b862de347a734e1514311b06a6cefb3da7dec26026843ef66cbeca25dda67bd7 |
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font_01_sfnt_off0000d1e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E9 | 16956 bytes |
SHA-256: c02564ef7e2e638ba95617f35ce0ced30e79b86c280663e4e967ef9df9d94b6b |
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font_02_sfnt_off0000fe2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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