MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites. These links likely serve to redirect users to phishing or malware distribution sites, a common tactic for initial compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/bc5191fb06f29e21cd46eaff30f99799/18996199116.pdf In PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/975093e41a9b4a5e1ad2789b64af4280/lazizulunulugufaw.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/bo20lraq8iibtd196b7095kka7/bobojerodaxofunakisorunid.pdfIn PDF document text
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/hq0n1gh8gin1ueb0t1qcg6k6fi/nelavoli.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/2a932339e6876731b90b3c74e6fbb464/kevakemux.pdfIn PDF document text
- http://blankheich.de/images/uploads/file/36534535720.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/c0e58009321f407ad91bcfdcd3c82d4f/potabevozireximomige.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/e2e22b35f1ab489651b739fbc166a343/49050258333.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/5e6dj4cpjm2ao3a129884obvu0/xidizumetizijaverafid.pdfIn PDF document text
- http://fusiongrup.ro/userfiles/file/46296790885.pdfIn PDF document text
- http://bouwbedrijfbouwheer.nl/userfiles/file/zusujujovoxoxixigirutudo.pdfIn PDF document text
- https://thietbidienmanhcuong.com/upload/files/davodepesimapu.pdfIn PDF document text
- http://mawaevents.com/uploads/file/1727095536.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9a293d7f1f2963b90a0a4214a918638c/58041520481.pdfIn PDF document text
- http://murasakijr.com/uploads/files/duvajajezodenejebozurum.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/af3palmibpf3k5ar985ocd2c0v/nexurivinewasonafewipa.pdfIn PDF document text
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/b86adb64592900d8e2191c71c3e02d44/gupozirovekope.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/16076e8113cc3f---97509990999.pdfIn PDF document text
- https://performanshost.com/calisma2/files/uploads/gudaravomutenigedume.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/48553ec5f57bd7f18b712f759c452371/6421443834.pdfIn PDF document text
- http://avandcie-automation.fr/ckfinder/userfiles/files/fitilewerosaxivepav.pdfIn PDF document text
- http://bydnjl.com/userfiles/files/64237863179.pdfIn PDF document text
- https://advance-pack.com/editor_upload/file/vajuzumobibijumijusodel.pdfIn PDF document text
- https://noddy.nu/images/file/63992645484.pdfIn PDF document text
- https://kanalprofi.at/UserFiles/file/berimedurureriwago.pdfIn PDF document text
- http://avanti.pl/userfiles/file/falirevop.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=introduction+to+audiology+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_off0000c3ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3EF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dc01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC01 | 16628 bytes |
SHA-256: 1f7319a99e9a339eca2958e2f4978af4c6c73bb498dae9771c348fb3419135e7 |
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font_02_sfnt_off00010734.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10734 | 10660 bytes |
SHA-256: c693d31baf5e7edfcfb9f4509c20736168eef22090291771c7fc036ffe243c3d |
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