MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URLs, many of which appear to be part of a link farm on disposable hosting. The embedded JavaScript and external links indicate an attempt to redirect the user to malicious content or initiate further downloads, consistent with a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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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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 https://wastran.ru/uplcv?utm_term=ml+mod+apk+2021 PDF link annotation
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/8e77ccaf150bd598dead3c600c01cc70/puxobovuwikuwos.pdfIn PDF document text
- https://www.winsum.frl/ckfinder/userfiles/files/11385844106.pdfIn PDF document text
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/53757581357.pdfIn PDF document text
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b76d406f0a---79215274158.pdfIn PDF document text
- http://gptools.net/userfiles/file/disokopudunulijoluxokok.pdfIn PDF document text
- https://beautydent.hu/editor_up/45221551048.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161413c959969c---salinotuvazafikekagezokot.pdfIn PDF document text
- http://schodylux.pl/userfiles/file/fewogibipavegej.pdfIn PDF document text
- http://viorina-deko.com/images/file/81950679078.pdfIn PDF document text
- http://travelcenterpuntos.com/campannas/file/8793522532.pdfIn PDF document text
- https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/fukujepuwudagunimusekebo.pdfIn PDF document text
- https://schodyperfekt.pl/user_upload/file/peruvoxaduvod.pdfIn PDF document text
- http://malopolskiszlakwinny.pl/upload/File/pamavalida.pdfIn PDF document text
- https://capital-publishing.com/ckfinder/userfiles/files/63396868475.pdfIn PDF document text
- http://smeeing.com/userfiles/files/19243302914.pdfIn PDF document text
- https://floraplant.gr/FCKeditor/userimages/file/49683299958.pdfIn PDF document text
- https://hetodon.com/fckeditorfiles/file/fijivamezoxudafotonexep.pdfIn PDF document text
- https://ximatinhdongnai.com/app/webroot/files/images/pages/files/fofinurojafivumudo.pdfIn PDF document text
- http://humidorio.de/ckfinder/userfiles/files/rukovoxejulovabex.pdfIn PDF document text
- http://nsk-nalogov.net/upload/files/jawamonipubiwofutoz.pdfIn PDF document text
- http://misr-consult.com/userfiles/file/54004617005.pdfIn PDF document text
- http://rulada.by/upload/editor/files/53911465371.pdfIn PDF document text
- http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fitob.pdfIn PDF document text
- http://registermycompany.in/admin/userfiles/file/94815009913.pdfIn PDF document text
- http://ghefoot.com/fckeditor_userfiles/file/20308727701.pdfIn PDF document text
- http://chamdure.com/DATA/files/zilorilip.pdfIn PDF document text
- https://webmenuplus.com/images/file/fegimexidikini.pdfIn PDF document text
- 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_off0000e19d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE19D | 18132 bytes |
SHA-256: 95d4ffc158149ea4cfb61c57ad6329f7476f668e49de3d5a2e8e4c745ea93cc6 |
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font_01_sfnt_off00011062.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11062 | 10236 bytes |
SHA-256: 193825af442dd85935189c70636b3a94a915dae2a28d487064ab39b895bc7f6d |
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font_02_sfnt_off00012769.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12769 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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