MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or redirection scheme. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to manipulate search engine results or distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3df85bf962---wuvojenuzovajusajejonenex.pdf In PDF document text
- http://lhs75aa.org/clients/0/08/08eb77d093c5251d787cf05842b4a73c/File/vezuvut.pdfIn PDF document text
- https://cornerstonelaw.eu/userfiles//file/zarakewifebilisures.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d012d8d89---kujidorumofeda.pdfIn PDF document text
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/221ef55af1888484f5f3239e2e733e78/firab.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4ba069992---luwozimonuwadat.pdfIn PDF document text
- http://brenna-ski.pl/userfiles/file/fepomaxulivedakifinetusuz.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/0c547f461af53bfb1c4dea8e133d3e69/newunad.pdfIn PDF document text
- http://patriabrno.cz/userfiles/files/busazowujuwowufuzuxir.pdfIn PDF document text
- http://patronusalapitvany.hu/public_html/upload/32445055810.pdfIn PDF document text
- https://bodymason.com/user_uploads/files/62584172382.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce40c203dc---bozorepipuzepazarige.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f01d8872b5---jemiputevifavuli.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606effc40f505---59642580632.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0cbb498e6---vomamawovegew.pdfIn PDF document text
- http://bukhatirhomes.com/userfiles/file/1178806334.pdfIn PDF document text
- http://rencontres-icare.org/userfiles/file/29302862678.pdfIn PDF document text
- http://karmand24.ir/basefile/ehotel724ir/files/wulopamutakepitaxupuzu.pdfIn PDF document text
- https://nbcmedia.vn/ckfinder/userfiles/files/71095794413.pdfIn PDF document text
- http://toonesk.com/upload/faxep.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4b752c9a6b---zugavozidusopaw.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/dabojabarunonunaxonuzezi.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082ed92b513f---94777882080.pdfIn PDF document text
- http://fsoa.cn/userfiles/file/jufukaxufebu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=gba+emulator+android+apk+2020PDF link annotation
- https://www.thc.gda.pl/ckfinder/userfiles/files/23790195858.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_off00010033.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10033 | 10996 bytes |
SHA-256: 76f068baaa97ea50c614ea976a5f21fb65227848d47776907cc518631b076af1 |
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font_01_sfnt_off00011982.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11982 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13194 | 18048 bytes |
SHA-256: 3fc25fd23fc37bd1a8c88f0863c0671fa995b10487d9f39cc17b7fbde8e25d82 |
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