MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a strong intent to direct users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/b8nikkqjef31frc8ols1d9f2eb/50518888213.pdf In PDF document text
- https://netcsemege.hu/ckfinder/userfiles/files/7768881980.pdfIn PDF document text
- http://groupementpecheduloir.com/ckfinder/userfiles/files/bixofu.pdfIn PDF document text
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/409c92022a4e7586f342b1e281af7ecb/82114254226.pdfIn PDF document text
- http://sinocelltech.com/filespath/files/20210808235006.pdfIn PDF document text
- https://rafaela-motores.com/userfiles/file/66677887012.pdfIn PDF document text
- http://gayaarchi.com/userfiles/file/20210718185638.pdfIn PDF document text
- http://broadgatecapital.com/userfiles/file/44826649050.pdfIn PDF document text
- https://bibliotheque-des-arts.com/ckfinder/userfiles/files/78793507952.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/c3a10515aebf6996f375e13bac317b98/22013602138.pdfIn PDF document text
- http://alexanderjamesbackcatalogue.com/userfiles/file/tutupom.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f12f6abb13---50148481771.pdfIn PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dbe30b3e48---94937949122.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021081709443319.pdfIn PDF document text
- http://petra-dario.info/upload/datoteke/61350994819.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088a52f461eb---45972706002.pdfIn PDF document text
- https://baoholaodong24.com/userfiles/file/64254704909.pdfIn PDF document text
- https://mallncart.com/userfiles/files/52673076182.pdfIn PDF document text
- https://couvreur-hautdoubs.fr/internet_new/images_et_fichiers//file/24052248965.pdfIn PDF document text
- http://d4scanada.com/clients/8/81/81a8d3ecf29e0a7d9042e8364394d873/File/zagogimul.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ae678b76b54---16516052476.pdfIn PDF document text
- http://iltorg.ru/upload/file/94224588375.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160d1a04fd618c---tomefurakoferinemoragore.pdfIn PDF document text
- http://e-store-sys.com/userfiles/file/gidipe.pdfIn PDF document text
- http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/38575246609.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/patuzi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=ejercicios+de+perimetros+y+areas+para+5+primariaPDF 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_off0000dc64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC64 | 18156 bytes |
SHA-256: e76d147125e89a0802f7edd0925d4cf62e9082af885207e2d34b4ba72a5f2770 |
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font_01_sfnt_off00010a48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A48 | 10884 bytes |
SHA-256: 237e7694470eef9b4558b619e61fc2a876499b74d57ef99ecc64d8f65aa68a1c |
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font_02_sfnt_off00012389.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12389 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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