MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS upload directories, suggesting a tactic to host malicious content on seemingly legitimate but compromised websites. The PDF structure and embedded links are indicative of a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/ktrpclqgh43uekcjhqrra9u9k8/84572470204.pdf In PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/772a042a808156968609a8cd056aa355/59206931396.pdfIn PDF document text
- http://statewideroadservices.com/clients/879378/File/95237978069.pdfIn PDF document text
- http://jnafarms.com/clients/864068/File/17176878893.pdfIn PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160905734ad3f2---dewiv.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aba3d80d7b4---39047697793.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/ns6n79n5r8r2o14vpfaogidav3/fusako.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/c93fd80982059a9e8a45d7d5734dce7f/bifaziruxi.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/13n3i1ud2q8fhjmca8bnv939p0/91513795168.pdfIn PDF document text
- http://alfavs.eu/userfiles/file/40319020669.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/2def34d37a2e115131dc2a23655f0d31/kugogepoxisojoka.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/37d642d12129e7968df5a3e4741ee8e6/pujopujusuwe.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/u3bdpvjur8btiqb700v9qoga70/87205623549.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/3po0i8lu4ovrpdd84v8f0i39p4/vajin.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606cca3e91a96---15743397644.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f4a5493d91---zoduka.pdfIn PDF document text
- https://diaochue.vn/userfiles/file/30012423837.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d03531a6e35---favodetilunemifogibuviged.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/nt5jgjlv9c3ee5gg14hnaed5d2/56066108846.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7f31019e1---nebuzajubojuf.pdfIn PDF document text
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/79c8489f36a2f64af83f9e1baf9fa3d9/kokozeminuta.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/8a87bfb49d0802ade87d375333e57e6e/33855308905.pdfIn PDF document text
- http://mwflower.com/upimagesfile///titawepitakafu.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/40eacdaa9800de46ee48b6461aeaebf7/17277441248.pdfIn PDF document text
- https://mnlex.it/file/9769721788.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=world+education+rankings+list+by+countryPDF link annotation
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/9a367e6e3a5f9d10270efe9c65160ebc/vulade.pdfIn 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://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_off0000ec62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC62 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010479.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10479 | 10984 bytes |
SHA-256: 865211ee3eabc8e976f0d56ab95b4f6972722efe50cba77a17351a3aab71a71d |
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font_02_sfnt_off00011de3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DE3 | 17256 bytes |
SHA-256: e9bfb194d32cee12660cf6dcb125660dc1db44ce05359ca3e79a67da3f56043e |
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