MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories, likely serving as a distribution point for further malicious content. The presence of multiple links on disposable hosting further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/1b99274136f3ffcb3c87d3b3a183361a/liniwizo.pdf In PDF document text
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/ck6ts8n0muosf3of38ed4se8bj/foredabumofusimotapi.pdfIn PDF document text
- https://bisnismedsos.com/userfiles/file/72403216458.pdfIn PDF document text
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/58985158a0fde7ab504b6d1df00c5a59/zaxibaxevosuz.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/7a5c682337e8a20f6b5dda2782b64bab/tududodox.pdfIn PDF document text
- https://misionesmedellin2030.com/wp-content/plugins/super-forms/uploads/php/files/5te6ovdc197674sih381rrb3qp/58246127450.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1476e527fb---19309994323.pdfIn PDF document text
- https://aspirans.com/files/file/47318082283.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/f8db8df2240105aa88ff1d02903cbfc1/kovunoduze.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-6-4/20210604005733249708.pdfIn PDF document text
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/2eokud0ahvq9viav1tb30hm0eo/roluwunug.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/sudowuribajobovesawus.pdfIn PDF document text
- http://www.anieliasfx.com/uploads/textareas/file/16197402560.pdfIn PDF document text
- https://miaousland.fr/ckfinder/userfiles/files/jofizujutawotedut.pdfIn PDF document text
- https://bataretak.com/img/files/file/vatevivolu.pdfIn PDF document text
- http://alhouti.com/userfiles/file/ruvalafis.pdfIn PDF document text
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/acd9fee327f8476c05e11a51ae402072/40855652235.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe5f354de1---budamisijiloxoduv.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097f844e7807---69814605834.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/1253886442.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c267c309e89---xibanowaw.pdfIn PDF document text
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870de73d972---tesarifojanuxuzikenit.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b77a69c82---26878093446.pdfIn PDF document text
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/qqcpa9l1m0c50k0e3lvvnnosqo/73252410717.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=learning+style+preferencePDF 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_off0000f1c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1C0 | 16720 bytes |
SHA-256: ee92053eb0f4ac60b6b5f95e58a6405c5c952e72ab02791a6258f5c558011c0d |
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font_01_sfnt_off00011cea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CEA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013501.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13501 | 10608 bytes |
SHA-256: ffab8a8aeba4cc66851613d768a5495e21c960602e996247671aac98881b8905 |
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