MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS uploads. The presence of numerous URLs, including those with 'utm_term' parameters, suggests an attempt to redirect users to potentially malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://inwebjor.ru/uplcv?utm_term=the+different+kinds+of+lines PDF link annotation
- https://thehouseproduction.net/file/43408886510.pdfIn PDF document text
- http://tieulongcopro.com/luutru/files/71915835979.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140508a77117---vagidirapun.pdfIn PDF document text
- http://tele-klass.ru/i/upload/files/3532836511.pdfIn PDF document text
- http://100gastro.cz/soubory/files/49556522694.pdfIn PDF document text
- http://daiichilogistics.com/uploads/news_file/dewilufoxexubivadur.pdfIn PDF document text
- https://allegypttours.net/userfiles/files/11982086573.pdfIn PDF document text
- https://windscrm.net/files/file/wefetebokofanuki.pdfIn PDF document text
- http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99814846209.pdfIn PDF document text
- http://linker-apps.com/files/zawajeg.pdfIn PDF document text
- https://at-studio.tw/app/webroot/userfiles/files/20210929_050315.pdfIn PDF document text
- http://orosweb.hu/userfiles/file/48197308381.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/6106380975.pdfIn PDF document text
- https://recrut.com/files/files/nupuw.pdfIn PDF document text
- https://mgs-on-track.com/app/webroot/userfiles/file/kiwipubedilizevamuz.pdfIn PDF document text
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/xakexevisofekitibomenotuk.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614b8a8cbbb62---73924670675.pdfIn PDF document text
- http://hotechike.com/files/files/65544556793.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3bae64e03---95856716221.pdfIn PDF document text
- https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/31968430324.pdfIn PDF document text
- http://sgpeo.pl/users/file/pasimujotixijoxoparuv.pdfIn PDF document text
- http://cu-hinothai.com/ckfinder/userfiles/files/kesetegidizuzijos.pdfIn PDF document text
- http://www.klccpa.com/userfiles/file/In PDF document text
- https://812423.qqtogeljackpot2.com/contents/files/vuwuwanugebirinapadixav.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_off0000bb1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d334.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD334 | 10344 bytes |
SHA-256: 42c778f70a72710d7f010d4fc1850705198587e2edd4d047da2cd2133b33767e |
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font_02_sfnt_off0000ea70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA70 | 18412 bytes |
SHA-256: 3827e4178f466f5063538db066b2228e7712347d8f54fe2eb6469b48bf6adc02 |
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