MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. Multiple URLs point to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malicious content or redirect users. The PDF structure and embedded links strongly indicate a phishing or SEO manipulation attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://jianianhuayule.a9188.com/upload_files/art_files/files/20211003_074041.pdf In PDF document text
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/23e709d3dbc85b6e57d7aa4eb3c3759a/84505345007.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/e1ppl3vmqcnrv652fv6mhqrhmh/xexalexegu.pdfIn PDF document text
- http://assushop.com/userfiles/assushop.com/file/90996466586.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161388ab3e255c---luwatagolevimeruxiwo.pdfIn PDF document text
- http://pm-property.pl/userfiles/file/78696313708.pdfIn PDF document text
- http://citescolairedeledit.com/include/file/midafowoniji.pdfIn PDF document text
- https://lhorizon.ca/uploadHorizon/file/kelofow.pdfIn PDF document text
- http://ergakiland.ru/files/files/rovudodutabutufapuxu.pdfIn PDF document text
- http://quetthe.com/upload/files/33551794482.pdfIn PDF document text
- http://duocthientam.com/uploads/ckfinder/files/56338143300.pdfIn PDF document text
- http://ambvetesopo.eu/userfiles/files/bimegu.pdfIn PDF document text
- http://kasintorn.com/images/upload/files/xefisizelusov.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/1d80742a6cff6060bbae4e6b05c07808/nugan.pdfIn PDF document text
- https://marikakozmetika.hu/editor_up/vomowipirefok.pdfIn PDF document text
- http://zge-led.com/luodan/images/userfiles/file/fojapijesipopovusimuguma.pdfIn PDF document text
- http://brbud.pl/userfiles/file/rokunodilokexuvemarox.pdfIn PDF document text
- http://sakurahoaanhdao.com/webroot/img/files/pilukapime.pdfIn PDF document text
- http://topimmigrationlawyer.org/ckfinder/userfiles/files/48840540458.pdfIn PDF document text
- https://caribemed.com/userfiles/file/76020763944.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/nt644u055fknt1p2tgtvb0gdut/jobeleborezima.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/42884433218.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/tamex.pdfIn PDF document text
- http://ridendo.cz/files/file/lowejotodudokakoxi.pdfIn PDF document text
- https://drterrace.com/london-100.com/userfiles/file/sokoxivuditekaneg.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=10th+grade+honors+reading+listPDF 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_off0000e187.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE187 | 10604 bytes |
SHA-256: 7b5f16129658fbd7611649ce44a0ecf7ddb4b7330cbe6909c02744f4a6856380 |
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font_01_sfnt_off0000f979.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF979 | 19364 bytes |
SHA-256: c805dce314bfe84abc7ffa3370851ff40496e9ce94e0727e3e13b859a6607b9e |
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font_02_sfnt_off00012bfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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