MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links, many pointing to compromised WordPress sites, suggesting it's part of a link farm designed to distribute malware. The document body is heavily obfuscated, but the presence of external URIs and link farm heuristics strongly suggests a social engineering attack to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://ketchas.ru/uplcv?utm_term=inside+outside+magazine+pdf+free+download PDF link annotation
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613831acdb24c---duvizoramolarorus.pdfIn PDF document text
- http://fairway.cc/images/blog/file/zunemigutonidelofum.pdfIn PDF document text
- http://esistore.de/userfiles/file/8504277867.pdfIn PDF document text
- http://www.ccengis.be/applications/ckeditor/addons/ckeditor/ckfinder/userfiles/files/61704716851.pdfIn PDF document text
- http://angelojrobles.com/admin_initial_test/userfiles/file/xijul.pdfIn PDF document text
- http://maidichike.com/upload/files/79436230129.pdfIn PDF document text
- https://aromamarketing.md/img/files/neroforenuzozosi.pdfIn PDF document text
- http://hengtaixin.com/HangShun/ckfinder/userfiles/files/pobosejoxo.pdfIn PDF document text
- http://waycreon.net/bhaskar/yii/upload/files/gumejasazezoka.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132752828543---madalenopoliwiwozezesi.pdfIn PDF document text
- http://thecargonepal.com/userfiles/file/zotijesipaludo.pdfIn PDF document text
- http://st-ark.it/userfiles/files/lijodutokuwekar.pdfIn PDF document text
- http://agilesolutions.in/uploads/6696795677.pdfIn PDF document text
- https://pacie.vn/web/uploads/files/1490453128.pdfIn PDF document text
- http://dsfly.com/uploads/files/65996578006.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/50929189186.pdfIn PDF document text
- https://akonis.ch/userfiles/files/56926606096.pdfIn PDF document text
- http://gameometria.com/assets/ckfinder/core/connector/php/uploads/files/fulunimurinevivijux.pdfIn PDF document text
- https://gallerylingard.com/uploads/file/46701887059.pdfIn PDF document text
- https://stehovani-ostrava.cz/static_pages_files/file/82956172816.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae74e0c18e---suteli.pdfIn PDF document text
- http://fxlcd.com/upload/file/21174168171.pdfIn PDF document text
- http://topmebli.com/content/xuploadimages/file/jamotemezipedi.pdfIn PDF document text
- https://skykharchono.mn/editor/files/zadefajipizunuvosaveku.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_off0000db64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB64 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f376.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF376 | 19080 bytes |
SHA-256: a2113316811d07aa4fe51d8ff33ede6a2dbb1f8016677dd44bb4e26e160ff8a9 |
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font_02_sfnt_off000123e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123E8 | 11040 bytes |
SHA-256: 1843627ea135b283862d324ce4d3b394977618f45ff328cc1a447abe1a6cb2ab |
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