MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous external URIs pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded URLs are consistent with a spearphishing attachment used to lure victims to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://krisoc.ru/uplcv?utm_term=creative+thinking+tools+and+techniques+pdf PDF link annotation
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a937c16aa7d---37815860911.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/fewojuxodalifiwowosoxaze.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a020207022a---45226823796.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/fj6bbkmjdkpqgatif6g63h65jl/delemasonawi.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/99ae37a10471d11f5a19019dc0f4db16/dowuvavibofefipurixefija.pdfIn PDF document text
- http://facilitymanagementassociates.com/survey/userfiles/files/89636780216.pdfIn PDF document text
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/f8fb0e15e8882a8d9dbfceb932f9bddf/gabavut.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160824b350cd88---zimubasozola.pdfIn PDF document text
- https://blugarden.eu/file/wivifidarinepedin.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/todopena.pdfIn PDF document text
- https://benjamindreyer.com/wp-content/plugins/super-forms/uploads/php/files/b87d736b1c3f0894c412c01b98a81c15/fafizeb.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/tuzanin.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/la6nabq7e8vm1qqktb0qfq3sa6/40569915707.pdfIn PDF document text
- http://henri-ruch.ch/doc_pub/file/zemurodotikarilupigiwewo.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16070f30cda7a5---sirikikobasoxatado.pdfIn PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/lkm9uridkea162h2dvjlsj2i1n/52048440006.pdfIn PDF document text
- http://renovator.cz/files/file/bujusutitev.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/nt59lt03rskhbph8u9ht3sjc6p/texugamunakonuzono.pdfIn PDF document text
- http://elitaliaweb.it/upload/file/87326265084.pdfIn PDF document text
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/0akq9k3grsd6npa7e7q3r9g5v1/sujetonimadugo.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16076a4a4cd4ad---95570204990.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbfbbe0c1f---valegobipamenokovukidezad.pdfIn PDF document text
- http://faw-asia.com/image/upload/files/60034434152.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/27073f446a458e3b463f537087c38b49/39404444847.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_off0000feb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEB8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000116ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116CA | 17044 bytes |
SHA-256: 1eebe822d312317d1526828f0e35949b7a0c03c8d0aa404a0fbec20c934c799a |
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font_02_sfnt_off0001426f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1426F | 11336 bytes |
SHA-256: a082764874955c390dccdcd69c2843d14bae921fff52de111d3764c21fb851fc |
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