MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with several URLs pointing to compromised CMS upload storage and disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The document body is heavily obfuscated and unreadable, but the presence of numerous links suggests an attempt to direct users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://hyundainhapkhau.vn/upload/files/54282329107.pdf In PDF document text
- http://108shiva.com/userfiles/file/In PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1611b4ec24d85b---87242679080.pdfIn PDF document text
- http://veewood.com/file_media/file_image/file/ladosimifa.pdfIn PDF document text
- https://aimara-bg.com/userfiles/file/zebawaduneju.pdfIn PDF document text
- http://hasanmasat.com/ckfinder/userfiles/files/57471594973.pdfIn PDF document text
- https://nslogisticservice.com/userfiles/files/binejonakagamiw.pdfIn PDF document text
- http://hcvitamin.com/webroot/img/files/nedubu.pdfIn PDF document text
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/sotinagobokiga.pdfIn PDF document text
- http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/62755266802.pdfIn PDF document text
- https://china-glass-mosaic.com/userfiles/files/20210729_014207.pdfIn PDF document text
- https://bharatbiodiesel.com/userfiles/file/86902969937.pdfIn PDF document text
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/jp95dl91rf87s7foua1dc7eh15/vabinivigirapaza.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/830fb8f7d947282afc6aa4c877dad01b/64901550286.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/b8ea140354d5c3025266f8521e480733/xifadegu.pdfIn PDF document text
- http://rcp-ranstadt.us/files/rabezadopuwo.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/14865016200.pdfIn PDF document text
- http://gyobel.itpublic/file/kijoleropojejowerisisif.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ec539d04856---linozul.pdfIn PDF document text
- https://frontivo.ro/userfiles/file/funifer.pdfIn PDF document text
- http://autohondl.cz/userfiles/file/83983423956.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/10814875502.pdfIn PDF document text
- https://okinawa4d.com/contents//files/vegadodukosuzaresuvi.pdfIn PDF document text
- http://akvari-um.ru/userfiles/file/nugusukerid.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=star+wars+rpg+force+and+destiny+pdfPDF 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_off0000ed79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED79 | 17060 bytes |
SHA-256: 5752e852d61a2ebfc9281b3901ca2505670337b01bcf6f993bedc1b041abaf54 |
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font_01_sfnt_off000119f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119F0 | 11024 bytes |
SHA-256: 6a51ec50525f8f970c1ce99253fc909b4d97f377cbb48dac6d052bd004d993c9 |
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font_02_sfnt_off0001338e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1338E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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