MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF acts as a link farm, pointing to compromised CMS upload storage and disposable hosting, with many URLs redirecting via 'utm_term' parameters. The primary function appears to be redirecting users to external sites, likely for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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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://garglob.ru/uplcv?utm_term=bus+games+for+android PDF link annotation
- https://dogathermalhotel.com/resimler/files/debakufusimapibesovarabox.pdfIn PDF document text
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/65a7194e7a1e0130d19358edc72cc908/78618516853.pdfIn PDF document text
- http://evola.it/userfiles/files/6632046905.pdfIn PDF document text
- http://211.129.1.225/system/ckfinder/userfiles/files/sijidivafilari.pdfPDF link annotation
- http://mlsy.cz/images/file/files/rojowon.pdfIn PDF document text
- http://bdsductri.com/upload/files/60756838266.pdfIn PDF document text
- http://fra2ange.it/userfiles/files/36673213267.pdfIn PDF document text
- https://architektor.ru/uploads/file/somowunifemizibuxusap.pdfIn PDF document text
- https://lekkermooi.nl/userfiles/file/fefexasunobuvej.pdfIn PDF document text
- http://j-club.eu/userfiles/file/sovasawazo.pdfIn PDF document text
- http://www.ddu-hk.cz/ckfinder/userfiles/files/76397535614.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a3968d9fae---54797124946.pdfIn PDF document text
- http://canphantich.net/Images_upload/files/45745364604.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/82981185647.pdfIn PDF document text
- http://kmkonsult.cz/userfiles/file/78375988335.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5c79ee8db---23289827109.pdfIn PDF document text
- http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/48346074255.pdfIn PDF document text
- https://jeanmarcrobion.fr/userfiles/file/60985774130.pdfIn PDF document text
- https://viettrungson.com/media/Files/97443467740.pdfIn PDF document text
- https://er-cardiff.com/eurostyl/photos/file/33590641715.pdfIn PDF document text
- https://www.uflo.edu.ar/ckfinder/archivos/documentos/81130820111.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_off0000b554.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB554 | 16836 bytes |
SHA-256: e2de643fec7739228d4c1392f6eb29b2097493d66595d931a42d89c9a5534add |
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font_01_sfnt_off0000e0c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f8de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DE | 10704 bytes |
SHA-256: 783fbdbbc5180d2c1170977ea96b5e2c0f35ed39a8cd2620e7eff9ef46261728 |
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