MALICIOUS
164
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, which is a common technique for executing malicious code within PDFs. Additionally, the document hosts a link farm pointing to numerous compromised websites, likely serving as a lure or redirect mechanism for further malicious activity. The combination of embedded scripts and external links suggests an attempt to deliver a payload or conduct phishing.
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://smidgel.ru/uplcv?utm_term=asphalt+nitro+unlimited+everything PDF link annotation
- http://huh.hu/UserFiles/File/xoseni.pdfIn PDF document text
- https://creativitagh.com/pevron/www/img/file/1093158761.pdfIn PDF document text
- http://phutungtdc.com/upload/files/77120263230.pdfIn PDF document text
- http://fastcredit.ge/userfiles/file/xosusiwejezov.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/5294aa8d0f97d84e8c028630c8b322dc/rogulesod.pdfIn PDF document text
- http://ameshamagazine.com/js/upload/files/50830023967.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16137660bc9b0f---sezipateromomuwa.pdfIn PDF document text
- https://sunriseinnjasper.com/nbloom/fckuploads/file/rasetup.pdfIn PDF document text
- https://suprastoc.ro/userfiles/file/27507186976.pdfIn PDF document text
- https://ons-station.com/editor_upload/file/3475105876.pdfIn PDF document text
- http://www.seminariomenorvalencia.com/admin/lib/ckfinder/userfiles/files/47785937732.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/161330996705a8---tuvogitumefaroguf.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/telanagegubiteru.pdfIn PDF document text
- http://mobilni-kadernictvi.cz/files/file/dopujifavaserodu.pdfIn PDF document text
- http://scvumaichiramen.com/uploads/files/22146397748.pdfIn PDF document text
- http://lyzebrno.cz/userfiles/file/gofasu.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1db103679---4522655118.pdfIn PDF document text
- http://kielcenoca.pl/files/file/67929128024.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/c00414ec3fac739c807d15b6724e2dbc/8196561532.pdfIn PDF document text
- https://andhimazhai.com/images/files/74803898559.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/16144bce7725b7---97029344954.pdfIn PDF document text
- http://ranch.pl/files/file/93914638253.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_off0000d0ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0AB | 11100 bytes |
SHA-256: 8690f265a45a076cbb5170668db28de9c581afe93ca10d5a97627dc833db6e23 |
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font_01_sfnt_off0000ea43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA43 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010255.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10255 | 18284 bytes |
SHA-256: 883cb6cf7dc9624948d64b57ccf6d69f343482e45d2f87ced0db176480af8fb7 |
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