MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF contains embedded JavaScript and numerous links to external PDFs hosted on a variety of domains, many of which appear to be disposable. The heuristic 'PDF_RANDOM_URL_LINK' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the execution of a secondary payload, contributing to the overall malicious intent of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://1yunnan.com/ckfinder/userfiles/files/libewokojupupuj.pdf In PDF document text
- https://spacio.hk/attachment/file/jofubozasog.pdfIn PDF document text
- http://chelseacarpet.com/ckfinder/userfiles/uploads/zujesagijeba.pdfIn PDF document text
- https://mpressivelabels.com.au/application/third_party/ckfinder/userfiles/files/37170688049.pdfIn PDF document text
- https://turasmobilya.com/img/editor/image/file/4028932230.pdfIn PDF document text
- https://artenika.pl/fck/file/kirusixirereb.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/jidapifiwovesujaz.pdfIn PDF document text
- http://bona-agra.pl/Upload/file/pukotoxajejozofumu.pdfIn PDF document text
- https://delaneyllc.com/ckfinder/userfiles/files/poxerijanerofikijibatawaf.pdfIn PDF document text
- https://bcm.es/files/galeria/files/wazuzawopijomuxu.pdfIn PDF document text
- http://fongyoskert.hu/userfiles/files/47499528906.pdfIn PDF document text
- http://goldmustang.com/files/files/jisegef.pdfIn PDF document text
- http://candemdientu.com/Images_upload/files/17650309135.pdfIn PDF document text
- https://limblength-sldf.com/userfiles/file/40979608138.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138f12306592---xulopos.pdfIn PDF document text
- http://cycling-software.com/files/file/19351836979.pdfIn PDF document text
- https://flomogroup.com/upload/files/39413967994.pdfIn PDF document text
- http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/tajiz.pdfIn PDF document text
- http://kccmaul.com/files/files/46937153861.pdfIn PDF document text
- http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/mivem.pdfIn PDF document text
- http://w3-japan.com/js/upload/files/77089523899.pdfIn PDF document text
- http://barcabianca.eu/upload/file/36168517778.pdfIn PDF document text
- http://sns-russia.ru/userfiles/file/buradatavamadirasoxulok.pdfIn PDF document text
- http://eko-uklid.com/files/file/darifumarokok.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=age+of+empires+4+download+for+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_off0000b60d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB60D | 15532 bytes |
SHA-256: 3578b7d24414e5b8097d9fb1f5330fdde6b4b022ee49e6584801ad7f1f8f8de2 |
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font_01_sfnt_off0000dd5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD5E | 10888 bytes |
SHA-256: dc997a9dbdc54226ae7ea16822369b53a927714161f54abec5b18595311a1b2a |
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font_02_sfnt_off0000f66c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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