MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to distribute malware or phish users. The document body, though heavily obfuscated, contains text related to learner license tests, serving as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://jkohut.pl/file/86620138843.pdf In PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cbd1beca9fd---tumiw.pdfIn PDF document text
- http://rund.cz/UserFiles/File/15391625655.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd731a4c59---40675408818.pdfIn PDF document text
- http://nail-free.com/ckfinder/userfiles/files/tefezutep.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/81c1136c1d61705c5e82fa8f6d5c6e2b/25523357027.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/0a9303b8c65baa6aa94ee105fea4b7f6/63610059897.pdfIn PDF document text
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/82a198a8285bad336a18a2d6d5f12d8f/79283797091.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b00d3694a90---80569860880.pdfIn PDF document text
- http://amoy-art.com/Upload/file/livegizazakaror.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/9a02139f6e3ae761041d222039c0bf45/24810083542.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/0c9e6eb4aba3e7e09b52d0ed2370c1d3/xifodugereko.pdfIn PDF document text
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/16081e019267e9---fumoga.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/6uacpidabt0in887jti81ph9b3/85657489373.pdfIn PDF document text
- https://sealordhotels.com/ckfinder/userfiles/files/norakazuwegeboravisisit.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=learner+licence+test+questions+and+answers+pdfPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00015cc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CC8 | 5308 bytes |
SHA-256: 33e34ffabe80d643bdf194e34b51901662c0db8781d043ecd02388f29195ad10 |
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font_01_sfnt_off00016efa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16EFA | 12792 bytes |
SHA-256: c00c8c1974dd9532fe61268beea01a1b49ff6b6520bccd92dbe6b41db4027d1f |
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font_02_sfnt_off000199f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x199F7 | 2752 bytes |
SHA-256: 11bf571f0af05367446b2020c2f1c6267491649bc48117454eca19867f219dc9 |
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