MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, appears to be a lure related to trigonometry exercises.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://huntic.ru/uplcv?utm_term=trigonom%25C3%25A9trie+seconde+exercices PDF link annotation
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce3d6e0dda---29496992336.pdfIn PDF document text
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944f4c9b353---gilurujibeditafuw.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/peluzonunejixinuj.pdfIn PDF document text
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/8t4vmp3kasndojb4avv5bnpum8/kuzoratezibaz.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c40302263a9---85272922957.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/pegomuzorubixudutem.pdfIn PDF document text
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/a70078dc9ef70c9090ee35d3b936e7c3/vukepolebuwikovudelix.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160772cab8ffd8---nolodelujiduvizemegafom.pdfIn PDF document text
- http://apsencollege.org/test/fckeditor/file/72905106484.pdfIn PDF document text
- https://binarbaidrealestate.com/public_html/userfiles/file/digevivupaniwubege.pdfIn PDF document text
- http://www.contectrade.hu/fckfiles/file/32131353184.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3577b308d---47981863157.pdfIn PDF document text
- http://happypalettebnb.com/CKEdit/upload/files/zebevorilizukibasiru.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/mdp1rudibqukr7pql642n7sgu1/96077013732.pdfIn PDF document text
- http://boathousebrokerage.com/userfiles/file/99621519534.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn 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_off0000ecb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB8 | 5176 bytes |
SHA-256: 5d5b073a81fd24918ed1d6ca6d02221544af786054250a91b7f67533abfb2d7d |
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font_01_sfnt_off0000fe05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE05 | 10632 bytes |
SHA-256: 790d8e30f705124fef46c720340054551e7da6eac940f0a0546d9eecc05fd5a6 |
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font_02_sfnt_off000120d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120D9 | 16204 bytes |
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
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