MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan payload. It contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary intent appears to be to lure users through these links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.6632
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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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://chcial.ru/uplcv?utm_term=unhelpful+thinking+styles+pdf+cci PDF link annotation
- https://minervatech.work/js/ckfinder/userfiles/files/80683410433.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/d8ca0ce487fb09809df5a9ff88407307/55630447250.pdfIn PDF document text
- http://grapevinewinerytrail.com/clients/876125/File/bajadel.pdfIn PDF document text
- http://tfforming.ru/d/files/webemomitexon.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607883b7a9a2a---namijejeduxotuw.pdfIn PDF document text
- http://axwelindia.com/uploads/29442819115.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161162b50ed028---81347104374.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/c15548cb6cb19fbf5c48642df9be212e/venub.pdfIn PDF document text
- https://gencshoworganizasyon.com/upload/ckfinder/files/11701623668.pdfIn PDF document text
- http://casadiriposomarsala.it/userfiles/files/12417613939.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/ritesabojiponeriz.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611b50c915a2e---53764072918.pdfIn PDF document text
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfcc34dbc89---94517676907.pdfIn PDF document text
- http://sonnenheizungen.ch/fckeditor/editor/images/file/sisijivajepis.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099cd29b2b58---47882056798.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/72972944223.pdfIn PDF document text
- http://ddservice-bmw.pl/userfiles/file/gevevelowajikikilojoxa.pdfIn PDF document text
- http://www.videobezopasnost.ru/ckfinder/userfiles/files/26028073623.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/5ac2281784d1d4e5d5d3fe81aaeb7fe9/13027382678.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/661499f8c6b8a4e8d2e180cf95539b6b/16496822194.pdfIn PDF document text
- http://schodylux.pl/userfiles/file/80382405649.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/2aed149ad4f8248b9ee8393c8130cc62/womojuge.pdfIn PDF document text
- http://gardatrans.com/content/Files/94093178129.pdfIn PDF document text
- http://oodow.cn/upload/file/210708021912653111tg7imx14wkg2.pdfIn PDF document text
- http://www.lasallelille.com/admin/ckfinder/userfiles/files/63564290491.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e70c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE70C | 10832 bytes |
SHA-256: 55dc77dd841ec0bf6194f795cf9d32551875f9f6ca117fba68e849832fe4110d |
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