MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://cleaner.pl/userfiles/file/77448616406.pdf
- https://noventa.cz/media/files/file/60089167517.pdf
- http://gyobel.it/public/file/66061323533.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16087827407a47---zefugubonuvogozik.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607187db9409e---50333261538.pdf
- http://coffee33.ru/archive/file/12909064767.pdf
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607acefba7db3---bitom.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6f05f01a7---vujiduforovefinape.pdf
- https://konferencii.ru/js/ckfinder/userfiles/files/16554236398.pdf
- http://moriefrusca.com/userfiles/files/58800564946.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080d0c6bce63---42654081520.pdf
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0887b5809---7502550584.pdf
- http://alnahamgroup.com/userfiles/file/jubojolimekirusoji.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/09f6cead49e59910b5855461f6fb43db/46777199709.pdf
- http://ekolojikweb.net/upld/userfiles/file/80832469233.pdf
- http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/76655217317.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdc0d31659b---xugexivilarivopugepigu.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/dbf9400af386cb1d0f32a517291e544a/58649356774.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723dae1eeb3---kitobusagupejarevajow.pdf
- http://movementlab.dk/userfiles/file/95799972542.pdf
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/29fc671e0880103c9b5296faba285f95/3589029588.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/560beca224597244186889e867c7a701/65314338904.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=peach+and+blueberry+coffee+cake
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eceb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECEB | 16792 bytes |
font_01_sfnt_off00010502.binfeb14ea138c60523a238382055e1dfc5bea167e10be6470674e3322641626cb5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10502 | 10660 bytes |
font_02_sfnt_off00011d5b.bin4303089d3f4d33b7120216557fd7d4e4197dae795df0741acf402898425bdee0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D5B | 19472 bytes |
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