MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure indicate an attempt to exploit user trust for malicious purposes.
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://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16148f0594700c---36679794725.pdf In PDF document text
- http://thevale.us/userimages/13985101218.pdfIn PDF document text
- http://alanaf.ru/userfiles/files/40613641474.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/36978512640.pdfIn PDF document text
- http://1-cities.com/blog_images/blog_/file/dutajanogorosulidafosefe.pdfIn PDF document text
- http://gamjagolla.com/uploads/files/kewelonuwolibibuwasa.pdfIn PDF document text
- http://vidol.nl/userfiles/file/96423891805.pdfIn PDF document text
- https://femagnet.com/upload/edu/article/file/82230946697.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/97862697553.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145b5e3c198c---65830963118.pdfIn PDF document text
- https://bor-diing.com/upload/files/nekezefubofudizawudab.pdfIn PDF document text
- http://vigova.com/Images_upload/files/lekukagevupobe.pdfIn PDF document text
- http://juha.be/_files/file/55200103088.pdfIn PDF document text
- https://patidarpalanpur.com/web/k/main_admin/ckfinder/userfiles/files/xojepizilu.pdfIn PDF document text
- http://headrepublic.pl/images/files/77062332522.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/93138943597.pdfIn PDF document text
- https://norservis.com/files/files/gadaxelikujivatenawoz.pdfIn PDF document text
- https://kampusogrenciyurdu.com/file/tilunimusof.pdfIn PDF document text
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4af910d09---97570669957.pdfIn PDF document text
- https://bio86.net/userfiles/fichiers/bisixavato.pdfIn PDF document text
- http://zulaikhatextile.com/userfiles/files/zekubuxoxa.pdfIn PDF document text
- https://apsco.ly/userfiles/files/70175419814.pdfIn PDF document text
- https://stichtingech.org/ckfinder/userfiles/files/xafugo.pdfIn PDF document text
- https://pianoinprimopianofestival.com/uploads/file/66281246667.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/3m7068ii63q7ktohjdnabuprr5/58140486308.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=android+ger%C3%A4temanager+handy+ortenPDF 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_off0000da18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA18 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f22f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF22F | 10832 bytes |
SHA-256: b20bd4641fb565dd6604dc7d754c3db8f0adfbfa363f209ba01600458ee1142b |
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font_02_sfnt_off00010a50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A50 | 19600 bytes |
SHA-256: 066f5a662cac6df857da3b3ec04e3260e8a4c437a65c985279ddc3c2b01ca716 |
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