MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external links, many of which point to disposable hosting and are algorithmically generated, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript is likely used to facilitate the download and execution of a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://szao-spb.ru/images/news/file/xudeduxifomuro.pdf In PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/11175525313.pdfIn PDF document text
- http://k12kos.com/ckfinder/userfiles/files/sipibuxuf.pdfIn PDF document text
- http://ricarda-allegra.de/userfiles/file/37230670535.pdfIn PDF document text
- http://www.dgtrans.co.th/login/ckfinder/userfiles/files/rurizujejapom.pdfIn PDF document text
- https://jills.reviewz.eu/app/webroot/files/userfiles/files/72729516898.pdfIn PDF document text
- http://edituj.cz/res/file/tuxawakilekadasaros.pdfIn PDF document text
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/feruxewuxuterixuxaf.pdfIn PDF document text
- http://saraswatishikshamandir.com/singhania/downloads/file/93760596770.pdfIn PDF document text
- http://kompassztuki.pl/Image/files/3488104261.pdfIn PDF document text
- http://massimosusto.eu/userfiles/files/15023159203.pdfIn PDF document text
- http://phayaotechno.com/UserFiles/File/volavewirogolego.pdfIn PDF document text
- https://egokituz.org/files/galeria/files/dinexenojasuwiwidijevam.pdfIn PDF document text
- https://sitarasign.ir/data/file/boluvod.pdfIn PDF document text
- https://santechnikosdarbai.lt/images/files/33302276988.pdfIn PDF document text
- http://cardealer-space.com/js/upload/files/tumawudedu.pdfIn PDF document text
- https://middletonchambers.com/ckfinder/userfiles/files/39999363549.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/45729027236.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613683f6e1ec8---40315972647.pdfIn PDF document text
- https://abriganature.centralcms.cloud/galeria/files/warowexuw.pdfIn PDF document text
- http://xn--aknmedcal-wpbe.com/uploads/file/77509177749.pdfIn PDF document text
- https://babetravelling.com/ckfinder/userfiles2/files/71945106141.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=c+programming+a+modern+approach+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://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_off0000b4a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCB4 | 17348 bytes |
SHA-256: bd12cc0a1b7c3e1df08718570472919757fc491e3ebbd12f3343a1b1e7350ec8 |
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font_02_sfnt_off0000fa23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA23 | 10788 bytes |
SHA-256: 8ebdc19e21ac94c80e6b4da54136e0acb8bfe86430576a7df18e059c95d8362a |
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