MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, some pointing to raw IP addresses and others to domains associated with link farms, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malicious content. The presence of a 'download button' heuristic further supports this lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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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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 https://krisoc.ru/uplcv?utm_term=best+role+playing+games+for+iphone PDF link annotation
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133bcb4b4259---73733177439.pdfIn PDF document text
- http://cauthangdep24h.com/upload/files/vufozusupigulaligilojar.pdfIn PDF document text
- http://officeharbor.com/pdtInfo/gubuxa.pdfIn PDF document text
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/22064269416.pdfIn PDF document text
- http://chrislahoda.ca/userfiles/file/tenojoja.pdfIn PDF document text
- http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/9110547533.pdfIn PDF document text
- https://ww150005.linebot.net/upfile/files/20210910185932.pdfIn PDF document text
- https://cedria.es/DOCUMENTS/FotosFCKEditor/file/5061738662.pdfIn PDF document text
- https://starfoil-mail.nl/uploads/wysiwyg/niwulomujurofezunatuguz.pdfIn PDF document text
- https://dacinsara.ro/fckfiles/file/69369041095.pdfIn PDF document text
- http://140.121.161.111/ckfinder/userfiles/files/81710912713.pdfPDF link annotation
- http://luchetti.it/userfiles/files/wafumodaxosewa.pdfIn PDF document text
- https://www.xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/tepomefinarilafaji.pdfIn PDF document text
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/waxafigakiralobema.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16131ac6da19ac---53422731624.pdfIn PDF document text
- http://hengtongrongshang.com/jingkelun/userfiles/files/20210903200154.pdfIn PDF document text
- https://jakspravnenapsa.cz/userfiles/file/83599815162.pdfIn PDF document text
- https://hotel-la-licorne.fr/userfiles/file/womurumizisuremotazixod.pdfIn PDF document text
- https://sportyou.fr/ckfinder/userfiles/files/mazozazufenufefaxo.pdfIn PDF document text
- https://autohausnschmidt.de/userfiles/file/88389852902.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/ridukilobazilejen.pdfIn PDF document text
- https://okazdedziecko.pl/_files/Media/file/libub.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_off0000dbf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF6 | 17768 bytes |
SHA-256: c2c14e937e1d8e890d0e875b6f51a1720377c4080790e220fe1a137c6e00ef6a |
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font_01_sfnt_off000109dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000121f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121F3 | 10972 bytes |
SHA-256: 5794e2c5421e141e34a4840bb0684aedb91bc318f5fca1b4bfbb9f70bd0c1556 |
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