MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a significant number of external URIs, many of which point to compromised or disposable hosting. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a deliberate attempt to create a link farm, likely for SEO manipulation or to distribute malicious content. The embedded JavaScript, though not fully analyzed due to obfuscation, is a common vector for further exploitation. ClamAV detection further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9769
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://atphp.ch/userfiles/file/lefan.pdf In PDF document text
- http://ecohouse-lab.com/userfiles/file/26879404749.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b61d740be53---80345169578.pdfIn PDF document text
- https://cahayaapi1.com/contents//files/wipubejisezofu.pdfIn PDF document text
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/bde957218ccdc41621323fcbfc54f155/55085206038.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607e339cd9476---sebepuxub.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/3215654589857d575c163676c7712728/gakefux.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/dcdddab790b6c1df0405f4ad43bdf924/fovigosavomo.pdfIn PDF document text
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/dfdc05b6320e5538b13c4f28d7ef09b5/bozus.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071e5d76c0f0---nepivin.pdfIn PDF document text
- http://hodinovysoused.cz/upload/file/67541937768.pdfIn PDF document text
- https://soyana.de/js/ckfinder/userfiles/files/78133958576.pdfIn PDF document text
- http://nuovojob.com/userfiles/files/89603806349.pdfIn PDF document text
- https://elitstroycraft.ru/source/file/pilujarokazibigaruwupe.pdfIn PDF document text
- http://blpest.com/UserFiles/file/kebezexurejafizegole.pdfIn PDF document text
- https://soechi.id/userfiles/file/51737598875.pdfIn PDF document text
- https://cpsguffanti.com/uploads/file/38893034254.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160743b5b19f38---tiruxupanowe.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/b6365d32b1868f89d6353df85202f30a/73809144991.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ff03edbc6---35646374305.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf9766542b5---79726665133.pdfIn PDF document text
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/57794a808aa40e131467e1d8bf77c04e/91936494366.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/vdcbtv5d2mf9dgdthusrla3svl/71893035650.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607166f07add6---zetolezinak.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/6edeb5983e291ba148ea731e879348a8/23574763351.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/3c9704d02a08e80e02dec2726382b085/93630054893.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096bc2ec9c7b---18063176624.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aca09e6f4fe---60124202345.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=staad+pro+v8i+free+download+with+crack+64+bitPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f66e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E80 | 18404 bytes |
SHA-256: 7a29c124a49579056add261f5f4f7a14df443223fc0074619baeae201a84af1a |
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font_02_sfnt_off00013df9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DF9 | 17420 bytes |
SHA-256: 5d22e8c90570a35c3e7ee9d011516fa161b8c60ee74459c86e4647ad6f9addd8 |
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font_03_sfnt_off00015807.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15807 | 11460 bytes |
SHA-256: aa627c1ac00f577fabea837511d22ded67235b6907bf39a63dceb87b9c54b721 |
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