MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The presence of multiple external URIs and link farm heuristics strongly suggests a phishing or malware distribution attempt.
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://tecsun-moscow.ru/docs/file/86828130475.pdf In PDF document text
- http://studiogaleazzo.eu/userfiles/files/8077945490.pdfIn PDF document text
- https://keluargamimpi.com/contents/files/furase.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131a52ee977f---57507186535.pdfIn PDF document text
- http://koala-al.com/d/files/8671170319.pdfIn PDF document text
- https://ilo.tasksplan.com/userfiles/files/pegomosiki.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/62c54c6da639576f8dc9ec697a9094a6/rifinivupitur.pdfIn PDF document text
- https://clove7.com/userfiles/file/jazelazadevupe.pdfIn PDF document text
- http://esistore.lu/userfiles/file/66588368466.pdfIn PDF document text
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/95468466694.pdfIn PDF document text
- http://yesilderecine.com/admin/editor_resim/file/53279744058.pdfIn PDF document text
- https://infotechloyalty.com/bot/ckfinder/uf/files/wetilopobon.pdfIn PDF document text
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/cb9b41c658cd2907773cdab3a93992f7/fesilukabu.pdfIn PDF document text
- https://www.smartfutureexpo.com/ckfinder/userfiles/files/kitur.pdfIn PDF document text
- http://mylodge-naoshima.com/21059176618.pdfIn PDF document text
- https://khanoomhoteli.com/basefile/khanoomhotelicom/files/mivosafom.pdfIn PDF document text
- https://ntpuvoice.com/ckfinder/userfiles/files/52839486470.pdfIn PDF document text
- http://sisparts.pl/zdjecia/fck/file/daxidamixub.pdfIn PDF document text
- http://chipgene.com/image/files/20210901_191924.pdfIn PDF document text
- http://bagodilovaspark.hu/userfiles/file/16902478198.pdfIn PDF document text
- http://thietbibepnhahang.net/media/files/96862728352.pdfIn PDF document text
- http://clear-es.net/yamituki-n/uploads/files/7648230821.pdfIn PDF document text
- https://armour-technoz-ca.otzol.net/ckfinder/userfiles/files/39846337419.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/xosegejonazobemog.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+open+a+pdf+file+in+vb6PDF 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_off0000b3e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3E2 | 15412 bytes |
SHA-256: dc817900b6d1c6320a460b95812190fa2f97b4c77b21ed2cbfeebea308007748 |
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font_01_sfnt_off0000daf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAF1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f308.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF308 | 10672 bytes |
SHA-256: 8c15c7cf55229b44f6c8d91af189196bf09c924098705b1f5734c7e323f39598 |
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