MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to disposable hosting. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm strategy, suggesting the primary purpose is to redirect users to malicious content. The embedded JavaScript likely facilitates the redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://shinies.ru/img/lib/file/90088344443.pdf In PDF document text
- http://strelnicebudejovice.cz/userfiles/file/65549415698.pdfIn PDF document text
- http://salamino.pl/userfiles/file/larivajewosibovatutopi.pdfIn PDF document text
- https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/72967543790.pdfIn PDF document text
- http://doo-san.com/userfiles/file/20210916141339.pdfIn PDF document text
- https://bengalroys.com/ckfinder/userfiles/files/notigejanojobile.pdfIn PDF document text
- http://piscesappliances.com/userfiles/file/88617531015.pdfIn PDF document text
- http://www.superior-inkjet.com/login/ckfinder/userfiles/files/nutuzeripewusidaxux.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161384e7373f11---tuguxesejubuvuxugemiwuzu.pdfIn PDF document text
- http://xn--80aafbanafwvcftiqfecrg2a.xn--p1ai/pict/file/94632695233.pdfIn PDF document text
- http://wmc21.com/ckupload/files/jopigulofemi.pdfIn PDF document text
- http://adbuilder.at/ckfinder/userfiles/files/mobeluki.pdfIn PDF document text
- https://gameadvisers.com/js/new/fckeditor/userfiles/file/fukikoligizodewopemo.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16141bc710cdb7---68108299788.pdfIn PDF document text
- http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/2009369902.pdfIn PDF document text
- https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/dowozagurov.pdfIn PDF document text
- http://mrukseo.pl/userfiles/file/beveseponemove.pdfIn PDF document text
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/51707808391.pdfIn PDF document text
- http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xizez.pdfIn PDF document text
- https://bestrecycledautoparts.net/images_i/file/xafuli.pdfIn PDF document text
- http://espicycooking.com/files/file///sebarabupofi.pdfIn PDF document text
- http://mrpokedb.com/uploads/files/91368207932.pdfIn PDF document text
- https://szallas-karpatalja.com/upload/femagakifed.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/13954063106.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=viva+video+maker+apkPDF 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_off0000d9d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9D0 | 18572 bytes |
SHA-256: 7ef081377cdc5d4d292e609aaa990612d078bce6202a881c94ee408d6a64bbef |
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font_01_sfnt_off00010acf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACF | 10264 bytes |
SHA-256: 718357047256e7f0cb43cc848e2d8e00ace0150844fac003c11070d1b5837296 |
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font_02_sfnt_off000121d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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