MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these URLs and the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 https://synerhu.ru/uplcv?utm_term=laboratory+safety+manual+philippines PDF link annotation
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098352a82d64---93225334574.pdfIn PDF document text
- http://oreade-breche.fr/userfiles/file/zafurokiwuvuxixiwejadoj.pdfIn PDF document text
- http://www.naturhalles.fr/fckeditor/userfiles/file/nododo.pdfIn PDF document text
- http://owv-sad.de/userfiles/files/35428166091.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/9e1cc0a51cd0c96f5406279447e33d0d/86026983394.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/hit23vbtidl0fc24qm0kml1gbo/naresunetowapu.pdfIn PDF document text
- https://megashina24.ru/files/files/raremififalu.pdfIn PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160badc8cb6e78---visediwimon.pdfIn PDF document text
- http://gt-outillages.fr/ressource/site-image/files/47948312419.pdfIn PDF document text
- http://utuin.net/files/fckeditor/file/1204116928.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160c31b002168a---30294609599.pdfIn PDF document text
- https://hotelharmika.com/assets/userfiles/files/dufotoxokem.pdfIn PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/244e482486ee131ace5619b4f0d1559d/21374522488.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/79936716965.pdfIn PDF document text
- http://iamsong.vn/uploads/files/41886615190.pdfIn PDF document text
- http://studiorumeo.it/userfiles/files/26475382814.pdfIn PDF document text
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/61cdf284655f40b738260a24ca5867f0/46146570873.pdfIn PDF document text
- https://www.highettmetal.com.au/application/third_party/ckfinder/userfiles/files/8724205021.pdfIn PDF document text
- http://kgmda.com/upload/files/negaxuraginegipukalog.pdfIn PDF document text
- http://berbun.com/user_img/file/sukipi.pdfIn PDF document text
- https://highrise.pl/file/82929031191.pdfIn PDF document text
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/bf27252ae1c4ddfa122a0621de4d3ad0/tugemilowonifemokevum.pdfIn PDF document text
- http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/71171905434.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_off0000d806.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD806 | 17588 bytes |
SHA-256: 30eea91a57d365c8040165c3183bc1f1018216cad82a626ba1721700005541bb |
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font_01_sfnt_off000105bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011dd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DD4 | 10932 bytes |
SHA-256: ff603e97d192f37d7473d628b8377b5501aee7eb0a66c67f9e2a303131f70aab |
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