MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to compromised WordPress sites, suggesting it is part of a link farm designed to distribute malicious content. The ML classifier strongly indicates maliciousness, and the presence of external URIs points towards an attempt to redirect the user to a harmful site. While no scripts were explicitly extracted, the structure and heuristics suggest the PDF is intended to facilitate the download of a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://philabc.ru/uplcv?utm_term=vishram+singh+neuroanatomy+3rd+edition+pdf PDF link annotation
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b37d26f187f---98290987672.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607edf8300044---79318315599.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87b298519---6067796306.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/9dk5k04mkulhpi1n7bd0qo1oh7/bokedobodepe.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/77213826457.pdfIn PDF document text
- http://kwong-cheong.com/userfiles/45547085097.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/a158f80805cd3f5ee96059b9c054d42d/52975197624.pdfIn PDF document text
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a794931cc---78772291907.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/cq1u3kp7egls3vd94n8hfo58mu/20551220466.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b65e4afab---potisigukupu.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160823b75449b4---mebukavezapoliretupag.pdfIn PDF document text
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/55489854061.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16070e407c2b2f---44143203760.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/rc4md87220vuk60o19b0p1mro6/juvitix.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/galugijidusaxoni.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d9d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9D7 | 5652 bytes |
SHA-256: cc8690fd1cca57a5c5882a1caea0dec2ad12441e378f2a70b8ab6391b54ea849 |
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font_01_sfnt_off0000ecf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF7 | 10956 bytes |
SHA-256: 6838494f6ee0f40290c00697bf555fb11782b200a4a369772fab5ccedc3b81f9 |
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