MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded URLs pointing to compromised websites and disposable hosting, indicative of a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan. The primary attack pattern involves luring users to external sites via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://cructi.ru/uplcv?utm_term=team+meeting+minutes+template+pdf
- https://lescourailleurs.com/upload/editor/file/zulefadevojulemomive.pdf
- http://arcomproltd.com/userfiles/file/wamor.pdf
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16124749216cb9---97028920769.pdf
- http://www.scea.edu.mn/ckfinder/userfiles/files/62035741982.pdf
- https://guclupin.com/calisma2/files/uploads/gopege.pdf
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/bd4sfmad6ilpd9qkgdh7ieqcdp/tovolekuzanuzinob.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16094abaaa92c5---40842638430.pdf
- http://hanarotalk.com/userfiles/file///81180665227.pdf
- http://hzbaoyan.com/images/upload/File/4236752459.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160809098909f1---nabilunebajolegikuniko.pdf
- https://0286869143.com/editor_images/files/58906783447.pdf
- http://aklond.com/UploadFilesfile///2021050316220828.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082abc910789---robuj.pdf
- https://dichvuketoansg.com/luutru/files/lewuwusojazumevat.pdf
- http://ibshop.gr/uploads/_uploads/files/21502107199.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/pukunuvofewaveg.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/9161def72379c579312c0cff6568cc5f/36442604565.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccabde4d9f---rudokopivosigula.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16073628f7b237---17392257206.pdf
- https://pametnidom.hr/pametne_kuce/userfiles/file/gabobebago.pdf
- http://psychoterapia-przemysl.net/img/userfiles/file/bigovijawo.pdf
- 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_off0000d960.bin875fc5b3ab05ed8c4cd95dfa732bdf6d1a1053a1557db0628a17398916635f56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD960 | 10684 bytes |
font_01_sfnt_off0000f1a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A0 | 16792 bytes |
font_02_sfnt_off000109b2.bine44133f17afcc41660012518ad5129c21c6069047dcdee7ff7c412f51ae3ba95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109B2 | 17392 bytes |
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