MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a malicious PDF detected by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external links, some of which are algorithmically generated and hosted on disposable domains, suggesting a phishing or malware distribution scheme. The embedded JavaScript likely attempts to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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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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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://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613def5563c8e---tafimikokililenidegelofok.pdf In PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/b48538998b5036001a85eccc544be5f3/8204995232.pdfIn PDF document text
- http://ipceurope.com/assets/file/bagotilamus.pdfIn PDF document text
- http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/18333045485.pdfIn PDF document text
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/mekon.pdfIn PDF document text
- http://oshcongregation.com/userfiles/file/73188809964.pdfIn PDF document text
- http://abwcrainhwy.com/uploads/files/nofaruzibatemubaxorawuwo.pdfIn PDF document text
- http://protectakoteasia.com/ckfinder/userfiles/files/71514388417.pdfIn PDF document text
- http://php-lounge.de/userfiles/file/nopinir.pdfIn PDF document text
- http://monticellotownship.org/userfiles/file/39881243589.pdfIn PDF document text
- http://sjzhtchem.com/upload/files/88815753452.pdfIn PDF document text
- http://heathrowairporttaxi.website/userfiles/file/4870751101.pdfIn PDF document text
- http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/koladuxulokitijijewanon.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/xenopilukatemufin.pdfIn PDF document text
- http://bdn10.cz/files/file/kavatawofufovexi.pdfIn PDF document text
- http://www.stsmcc.org/www/js/ckfinder/userfiles/files/risipenanogosel.pdfIn PDF document text
- http://memsports.com.br/admin/libs/ckeditor/ckfinder/files/99246400096.pdfIn PDF document text
- http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/voxaninebi.pdfIn PDF document text
- http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/potazijo.pdfIn PDF document text
- https://sieseam.org/userfiles/files/4744194144.pdfIn PDF document text
- https://indiantalentjunction.com/milan/media/10226341741.pdfIn PDF document text
- https://pachetedeturism.ro/images/files/sugegoxitizo.pdfIn PDF document text
- http://ecohort.com/userfiles/files/78384142541.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=block+text+messages+androidPDF 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_off0000c24a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC24A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA61 | 10960 bytes |
SHA-256: 19a4fd1b0016e19bad0c8026dcd9afbae0ff7743c066804209ca5ee8685c250a |
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font_02_sfnt_off0000f3a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A1 | 17448 bytes |
SHA-256: 77c15b2a7da4d190fbda8dd4ea32dba8764808738c83ca19fe11b7f7001b75ec |
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