MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it contains embedded JavaScript and a significant number of external URIs, many pointing to compromised CMS upload storage or disposable hosting, forming a link farm. The embedded JavaScript likely facilitates the redirection to these malicious sites, which are used to distribute further payloads or conduct phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 7
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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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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://archism.ru/uplcv?utm_term=surah+rahman+al+kalam+pk+pdf PDF link annotation
- http://signexpowholesale.com/project-new/christianbook/upload_images/file/85364757640.pdfIn PDF document text
- http://henghuitong.com/jingkelun/userfiles/files/20210731045204.pdfIn PDF document text
- https://vegas-shop.net/uploads/files/78797398823.pdfIn PDF document text
- http://tweddlefoto.com/files_contenidos/upload/files/60764463931.pdfIn PDF document text
- https://sofahatinh.com/upload/files/sadonabujiwidovegebobedu.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160829de3b150f---fepatuxowabarigoduxobet.pdfIn PDF document text
- https://bakwanudang.com/contents/files/xezalefebofu.pdfIn PDF document text
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/7e79697311320b9ffb3f0cadd0a3df93/dufuton.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/17c496bdb72d6c2967e901693cacab42/lofejimibibekapejoboxazef.pdfIn PDF document text
- http://phunggia.biz/userfiles/file/tubefuluwej.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/3c62810622977441325950ffc9ba51c7/newakibevom.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161051c5e029c3---76371368898.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612919467b7d5---karebebopoxirebabi.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/ce5dab37fd59911466798aedaccf53d5/98773993979.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076fab9589f8---kepaxebadis.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/14ec7691bce6f9a510c0cd4fbd09f1fb/xulesakilopajujipulawezo.pdfIn PDF document text
- http://caycanh.vn/images/fck/file/83128906799.pdfIn PDF document text
- http://kamnitikamini.si/upload/files/52646516078.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160815e8c2b1e7---vojajasowa.pdfIn PDF document text
- http://tdsns.ru/userfiles/file/20330424621.pdfIn PDF document text
- https://muratay.nl/userfiles/file/77777656378.pdfIn PDF document text
- http://fabriquetextil.com/js/new/fckeditor/userfiles/file/20860949935.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075ba3308e3c---66826273097.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c49039a66be---54318792191.pdfIn PDF document text
- http://www.ddu-hk.cz/ckfinder/userfiles/files/voforuzujilikak.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_off00010a4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A4F | 10420 bytes |
SHA-256: b20a7a178fc26b05b84cd44091a1c243cbe274980e97b4e316aea1d5a39e697f |
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font_01_sfnt_off000121a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121A3 | 20604 bytes |
SHA-256: 79de73d92ac51f4076087eb5dcf00f2e7a06d7f9b90d5bc43030e51cc53e0b8a |
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font_02_sfnt_off000157da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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