MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Static analysis revealed it functions as a link farm, with many embedded URLs pointing to external sites, including one hosted on a compromised WordPress upload directory. The document body is unreadable, but the heuristics strongly indicate a phishing or malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://artgreen.vn/attachment/files/wakilimolisifite.pdf In PDF document text
- https://onwater.my/uploads/file/95876400800.pdfIn PDF document text
- http://nigerseedindia.com/uploads/9070340577.pdfIn PDF document text
- https://mlbcsimleague.com/ckfinder/userfiles/files/89387726014.pdfIn PDF document text
- https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/42027992617.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc9445e9e9---76509358527.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/89a444ce6b48755f550ac40499a04b9b/11593364540.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/givogu.pdfIn PDF document text
- http://www.ezmoving.com/file/nawapisegalipuveponura.pdfIn PDF document text
- http://purepoem.com/resource/docContentImg/file/2021-09-12/2b6ba8abcd7d59bf24bfa199867b9635.pdfIn PDF document text
- http://jan-fotografie.nl/upload/files/bobeveke.pdfIn PDF document text
- https://invision.buzyhub.com/files/48111950994.pdfIn PDF document text
- http://anthonyvienna.com/sites/default/files/file/walevujas.pdfIn PDF document text
- https://austarpharma.austarchina.com/upload/files/23193990703.pdfIn PDF document text
- http://kripasec.com/userfiles/file/denirizixotifemigikanekid.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f070a0af46---80201442402.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/69212539328.pdfIn PDF document text
- https://malabarmail.com/ckfinder/userfiles/files/78852377135.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fa71cf4077---91387475180.pdfIn PDF document text
- https://www.profiemg.cz/upload/ck/files/88825889422.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c1f48399a---vetirexoz.pdfIn PDF document text
- https://hobbes-group.com/upload/files/91208843326.pdfIn PDF document text
- http://amexeuro.com/an3_Uploads/file/xeremefal.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/51730726929.pdfIn PDF document text
- http://hophungvietnam.com/app/webroot/uploads/files/63862923293.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=thop+tv+for+tvPDF 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_off0000de74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE74 | 9780 bytes |
SHA-256: 5e155e5dfd981e8d041065a0b696a84b833c8173af62b5cd69880dc96915e338 |
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font_01_sfnt_off0000f3fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010c0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C0F | 17920 bytes |
SHA-256: 070aee6954325d83f54f6964693af8a5af3e399216da80f9d073c6249c826658 |
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