MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress upload directories, suggesting a link farm designed to redirect users to phishing sites or download further malicious content. The presence of embedded JavaScript further supports the potential for exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://gachbinhduong.com/upload/file/34962652605.pdf In PDF document text
- http://nessium.fr/userfiles/file/rujabezajan.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/b0g908ao0lk0k75nrvrt4kfskp/xitonubosibex.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb8097afb4---72730182129.pdfIn PDF document text
- http://www.travelwithtaangoo.com/img/file/retokarelerogupoxosobo.pdfIn PDF document text
- http://dichvutot99.com/webroot/img/files/19967563409.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160984e7658af6---puxanoxafukut.pdfIn PDF document text
- http://robalton.es/Albums/images/file///56988112996.pdfIn PDF document text
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16084ad7113cee---lirukimuvonokus.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/2fquvpf139krae6g0akrgpqqj5/guzekowedugopepabosofi.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611849b46401d---majibujuwogalowino.pdfIn PDF document text
- http://dermatologomiguelgallego.com/miguel/fck/file/51747594170.pdfIn PDF document text
- http://terredellamagnagrecia.com/userfiles/files/rigepudetaroripixudomekon.pdfIn PDF document text
- http://manpukuorder.com/uploads/files/29816811031.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160970384d6799---gumezadubaragajokumutenun.pdfIn PDF document text
- http://martonelektro.hu/files/file/54858093235.pdfIn PDF document text
- http://0vote.com/ckfinder/files/xuxote.pdfIn PDF document text
- https://grupo-bahia-real-estate.com/ckfinder/userfiles/files/98375313584.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ca188c781---zipezu.pdfIn PDF document text
- http://thaicockstar.com/ckfinder/userfiles/files/kejalabobilesegigu.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea8363ad45---26576341093.pdfIn PDF document text
- http://paintmaster.hu/js/ckfinder/userfiles/files/kuwujateviwora.pdfIn PDF document text
- http://fxmeat.com/upload/file/7d6ff9b7c1fbad562248cba2b619ba7d.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0567a1df2---71552337809.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a008d1ed464---96401832442.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161076fcccbd58---7966965467.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=bsc+notes+pdf+downloadPDF 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_off0000cf79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF79 | 10560 bytes |
SHA-256: 3bbd15b9a6a9fb00eed7ca35e3d9bdf5de864ac24ad8b513564337835081e1a3 |
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font_01_sfnt_off0000e7d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ffe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE7 | 17580 bytes |
SHA-256: ec97e3c6108e592df80aa92eeb0441550c4273d4a994d4b202668b921b40350d |
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