MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm or phishing lure. The PDF structure and embedded links are consistent with attempts to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://infrive.ru/uplcv?utm_term=atomic+structure+previous+year+jee+advanced+questions+pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609d8c91cf898---lapaxidozamodolafulan.pdf
- https://calmoinc.com/upload/editor/file/gikasuzakuvuxukat.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/nqead0pi5ke3uk04fbb9808a22/70478751418.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607453bd1c6a9---vorube.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160703abf794ab---xosoranavafegobebixosip.pdf
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/b2b7a631a235ebba1740c31a08d65390/47357099206.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//42435099998.pdf
- http://aksaaydinlatma.com/img/editor/image/file/wosewikaf.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/bf2f70cd254f1a43d938384eb08906fe/nobekobubozura.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e335b8323f---6761240587.pdf
- http://elcampoeco.org/FCKeditor/file/64369059735.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/fcd6ca0f67cfd92dd60b3d431d3d6c4a/84289901450.pdf
- https://kabelkyaobuv.sk/editor_uploads/files/nofiwoviverurogegabima.pdf
- http://paroissedementon.fr/upload/files/vadujejaw.pdf
- http://posekatzahradu.cz/files/file/luxozewokute.pdf
- https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/1503ca169c1f89a32ab4e7750bf6d383/xowenafinikovigomupeneluz.pdf
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/3d8a41028e9604fcfa55ec83c052679a/godegezomu.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/a0a3d135c047f19bfb63dc5679561994/46467201070.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160cb907fa103c---zegifofamopanibutuxi.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093f8884831a---ridudeje.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2418c1b5cc---80394744229.pdf
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/desor.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ce1b.binf5b20d47024b4bdcaa843d6c7aabbf5da3da7a2256cbee404e5a34395d8a44f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE1B | 11272 bytes |
font_01_sfnt_off0000e85a.binb1570e886d8f3b88d23987af7cee54c94d4ae780d6616c655a650be543890626 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85A | 18092 bytes |
font_02_sfnt_off000118b7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118B7 | 16792 bytes |
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