MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure suggest an attempt to deliver a second-stage payload or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://nhatminhtrading.vn/app/webroot/uploads/files/zuximi.pdf In PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/d7d820a0e9d381966efcaf917e8432fa/kevogoxufo.pdfIn PDF document text
- http://tucholainfo.pl/userfiles/file/91141826910.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/8b996057b3799a6c2bbe69fd28e4a1b5/jaraxanenunuxesetiji.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606eeeddade84---saxirilaruwo.pdfIn PDF document text
- http://rotang.net/userfiles/file/lusedufulijef.pdfIn PDF document text
- https://nbtele.com/en/cache/fck_files/file/87844742973.pdfIn PDF document text
- https://licorne-hotel-restaurant.com/userfiles/file/35957846646.pdfIn PDF document text
- https://skiclubraonbaccarat.fr/pdf/pumidakevazuwusavi.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/30481587919.pdfIn PDF document text
- http://coopmong.com/ckupload/files/seroxexodubutatinitile.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e74adf270---77530464079.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076fe15e3eed---besugetela.pdfIn PDF document text
- https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/f73ak91t9n317mkqrr6m83fnis/laxotuvotoreromuw.pdfIn PDF document text
- http://train-in-japan.com/images/blog//file/kisosezaxonitubikaminago.pdfIn PDF document text
- https://batikatravels.com/userfiles/file/seradu.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c569b7808c9---23168842173.pdfIn PDF document text
- http://modnyi-buket.ru/uploads/files/41154010998.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a288e0e828b---60736608554.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9efc05b82a---tudowewobit.pdfIn PDF document text
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/a079d07056a4e89152729095b04dfb34/gebevajijilapivu.pdfIn PDF document text
- http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/78468763954.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/jiuqvqq6el5gmcbpasbhlnb50i/46150542753.pdfIn PDF document text
- https://norservis.com/files/files/58938191282.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+to+reset+xfinity+xr11+remotePDF 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_off0000eb4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB4A | 16816 bytes |
SHA-256: 87bd16bf10e7e6a8ae4d9242a5ce3c0fee6c55cb49f317ce9229751c44a2a0a3 |
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font_01_sfnt_off0001171b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1171B | 10512 bytes |
SHA-256: 13655be0c3d73d2a4e667b2862bcc0972e6989d7770dad0bbe0b5f90fd33452a |
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font_02_sfnt_off00012f24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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