MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to download and execute malicious payloads. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection strongly indicate malicious intent. The presence of numerous external URIs, many of which are unknown, suggests a link farm or distribution network for further malicious content, aligning with a phishing or malware delivery attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://assytekservizi.com/userfiles/files/jajakitududubivujor.pdf In PDF document text
- http://mrs-edu.com/sribati/editor/uploadfiles/nezopobidoteburajewurip.pdfIn PDF document text
- https://hyosung-gulf.com/uploads/file/munebonexalinewezoxaxuna.pdfIn PDF document text
- http://spartaksedlec.cz/spartaksedlec/userfiles/file/97277411200.pdfIn PDF document text
- http://ecole.ru/text/images/file/jurilewawitifosudur.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/70395438502.pdfIn PDF document text
- http://allergyc.news-read.com/upload/files/fuxoxineputoje.pdfIn PDF document text
- http://mlight.cz/archiv/file/58156965067.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/13034012159.pdfIn PDF document text
- http://gaushalango.com/uploaded_files/userfiles/files/mamikanopotinabeki.pdfIn PDF document text
- https://sooryasales.com/uploads/file/79872645884.pdfIn PDF document text
- http://ufcnagykanizsa.hu/userfiles/file/78450688124.pdfIn PDF document text
- https://deltagroup.bg/uploads/file/27627901161.pdfIn PDF document text
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c8b3a41b8a---belaruza.pdfIn PDF document text
- https://camelcarpet.org/d/files/809556895.pdfIn PDF document text
- http://www.serge-valentin.net/ckfinder/userfiles/files/50001240565.pdfIn PDF document text
- http://riverla.vn/uploads/userfiles/file/63795387935.pdfIn PDF document text
- http://xn--spreewaldpension-lbben-9lc.de/meineBilderAlbertGrundschule/file/82076115425.pdfIn PDF document text
- http://conservativista.com/js/ckfinder/userfiles/files/5824211873.pdfIn PDF document text
- http://unicorn-furnitures.com/d/files/morikenomifemufije.pdfIn PDF document text
- https://5974293.pasarantogel.com/contents/files/koniw.pdfIn PDF document text
- http://pay2pay.net/upload/file/kilanamejezu.pdfIn PDF document text
- https://repare-ton-smartphone.com/userfiles/file/29851178706.pdfIn PDF document text
- http://h-n-s.net/userfiles/file/7964855129.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/EqozwcbAC44/uplcv?utm_term=computer+maintenance+report+templatePDF 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_off0000efeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFEB | 10496 bytes |
SHA-256: 0dc6e9cdb84e7d270411b442e2a6885432f704809ca0991dac91c0e2f023c674 |
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font_01_sfnt_off000107bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107BC | 17220 bytes |
SHA-256: a2cd33ee48898d950666357e4fbc92b7738317ec565d0137b7bfbb9cda501026 |
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font_02_sfnt_off0001336f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1336F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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