MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, suggesting an attempt to lure users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 6
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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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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://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f701e2c7798---99986489100.pdf In PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce700046dd---vegig.pdfIn PDF document text
- http://3suntech.com/UploadFile/file/20210630134212003.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/19e2cefc79068df8cf392fd3459040ec/89668140773.pdfIn PDF document text
- https://atlastoursntravels.com/userfiles/file/nibadadevewavasefe.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/2fc66dabdbd38c401ce71b0b2fa74ef9/68025219409.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1607a288fcd9ba---8299144935.pdfIn PDF document text
- http://chono.mn/uploads/userfiles/files/zerax.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160fdb4f83156a---lurikelejexapolodo.pdfIn PDF document text
- http://bacsiha.com/public/ckfinder/userfiles/files/morunulukudumozivoxepiro.pdfIn PDF document text
- https://almoheetmanpower.com/public_html/userfiles/file/xetapalewajizezilekur.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/96276848401.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b204eeb1319---zufesosizowiv.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/euo584ujvourpqpfamrco1sn00/90474695415.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6eb0edda15---54139007926.pdfIn PDF document text
- http://tcgardening.com/userfiles/file/2021081415521173499.pdfIn PDF document text
- https://webvitamin.vn/app/webroot/uploads/files/15102004570.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/862ad63f1b8ce99225872397fa999c04/fororoxafebuwojokupukerif.pdfIn PDF document text
- http://onlinetalk.jp/app/webroot/img/fckfiles/file/wufetasizisifizatojunerod.pdfIn PDF document text
- http://alexanderkanevskyartgallery.com/clientMedia/file/55654564611.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4a20e51d9---fugovilikonipixikipaxep.pdfIn PDF document text
- http://evergladesharvesting.com/ckfinder/userfiles/files/36481477970.pdfIn PDF document text
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/nf9bmadqprqiihvldk5o2fnqsv/nojibosinofebug.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16077363905e84---95169661127.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=life+is+what+you+make+it+pdf+download+in+englishPDF 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_off0000d034.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD034 | 11192 bytes |
SHA-256: b211b9890a6bfa347e9ae06f7b809fa4a197fad2b17d502eaaa630a7931ed61a |
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font_01_sfnt_off0000ea1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA1F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010231.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10231 | 18128 bytes |
SHA-256: 267cfc21673434fd007a48fa348fa55bc9345e9b17f7df41f5038ea7e1c3d89e |
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