MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised CMS upload directories and disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of external URIs and a link farm heuristic strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608558fa255a3---xegopuzabisiguzovomuxapog.pdf In PDF document text
- http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/d43363c7f7cac3c4a309244e44949dcc/99464948896.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/6ndbl9j8ggjbvaoirasaqn36j9/vabip.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d713661b7d9---dikerukixobokib.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///202162424960798.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/2ef75f95f7abe28955b1069bffaaecac/xojovazonesedo.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ab38aa1bf---9829654143.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/50044992057.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff055f2109---83658341515.pdfIn PDF document text
- https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/1b40e641ee3c830272393529bf08062f/77729650176.pdfIn PDF document text
- http://vytvarnyobchod.cz/UserFiles/File/39321267151.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/e107bbdd564c2ff630fc53bda962d076/83265731776.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a28c4d8c337---repevere.pdfIn PDF document text
- http://domplus.su/userfiles/files/nokalotumoneji.pdfIn PDF document text
- https://am-system.eu/ckfinder/userfiles/files/86950821505.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/sesoxe.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/d1c8ae37cc543503e26a9609b395d5ad/9565891440.pdfIn PDF document text
- http://x-site.by/upload/editor/files/wamaveti.pdfIn PDF document text
- http://waetsukai.jp/system/ckfinder/userfiles/files/pibomalegobolegapuru.pdfIn PDF document text
- http://momsystem.ru/public/file/vasaratulumadu.pdfIn PDF document text
- http://mega-gold.com/userfiles/files/gapisamotibalarowuv.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/d6810001e23412b3228571a330af5394/xosobunikolosikafopiwer.pdfIn PDF document text
- https://egca.fr/userfiles/file/1514228633.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ac69f232503---78309918575.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=japanese+from+zero+3+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_off000137da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137DA | 18768 bytes |
SHA-256: e170c5155ab183f333a0ecee77fd15187f93eebfe2670f8e8fb6a5315994adc2 |
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font_01_sfnt_off000169b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169B7 | 10644 bytes |
SHA-256: 3642904d9643292a2f4a34920a7f3b40a40f207cf492028e7ebe00dc5d7b009d |
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font_02_sfnt_off00018224.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18224 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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