MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected as malicious by ClamAV and flagged by an ML classifier. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF's structure and embedded links indicate an attempt to redirect users to potentially harmful content, likely exploiting vulnerabilities or attempting social engineering.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bab78e46f60---furobuzisog.pdf
- http://tamtamphat.com/upload/files/23636299785.pdf
- https://dm288.com/slicice/file/xaderixagifamipizalo.pdf
- https://airbays.com/userfiles/file/64073211759.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160876e15ba3ca---vajas.pdf
- https://homeuu.biz/upload/ckeditor/pages//files/65818747775.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e286e57dbb3---fevizegatizinexe.pdf
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/38a795a1c8fbda333ae6ef083237e519/newugabuvekefutanuvegabek.pdf
- https://svetplus.com/userfiles/files/79955498821.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94a4793b52---37213265046.pdf
- http://a-b-i-s.net/layout/bilder/file/murojogipawojarak.pdf
- http://myblindz.com/fck_user_files/file/41480241184.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f6d7c35d5---kemuxejobosojejamojovi.pdf
- http://zaun-produzent.de/userfiles/file/87260403631.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1612e84b64d81c---33909115820.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/64d56fdfbce1cd44820e1cc0e7bcffa5/99940531461.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/3db2e2517caf9f4d41052f17485fff55/xorijexixe.pdf
- https://renhedc.com/uploads//files/202108091923118594.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/6cb51d2cf90e55dbdad06b2e6e1fb2e0/90625355935.pdf
- http://tucholainfo.pl/userfiles/file/91141826910.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a8cdd7ce4---58474012869.pdf
- http://bnblspecialities.com/userfiles/files/ziguxalirivupoboxab.pdf
- http://tablica-nieruchomosci.pl/uploades/fckeditorfile/sariloji.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=wisconsin+withholding+allowance+worksheet
- 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_off0000f88b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF88B | 16792 bytes |
font_01_sfnt_off000110a2.bin436877d643b252a3fd61cb7a6919101a08894c848a53375484277a91777516b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110A2 | 10820 bytes |
font_02_sfnt_off0001295f.bin750d43b0d8e0b615fd7cfb7ed424d5a366d135bcba6026b29dbd1f0203e6d949 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1295F | 19084 bytes |
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