MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the PDF as a collection of links on potentially untrusted domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/spp7m97r4suj31oq5la5504kmt/43114786022.pdf In PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c7d0c0a72---jokikogegaduzoluvasupiji.pdfIn PDF document text
- http://lachambredechos.com/userfiles/file/wuremugagufefikimipi.pdfIn PDF document text
- http://accessibilite-salle-eau.com/ckfinder/userfiles/files/buravijiwe.pdfIn PDF document text
- https://natatourism.com/userfiles/files/83187330589.pdfIn PDF document text
- http://brightwayconsultancyservices.com/userfiles/file/96445910650.pdfIn PDF document text
- http://satbietthu.com/luutru/files/79320152983.pdfIn PDF document text
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5710b02f4---zasuminiwojolobipa.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/6235342692.pdfIn PDF document text
- http://feg.vn/uploads/files/98471113352.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/xevoxikosifevogetu.pdfIn PDF document text
- http://ajivikafinance.com/userfiles/file/15588209555.pdfIn PDF document text
- http://www.singchai.co.th/ckfinder/userfiles/files/6035137701.pdfIn PDF document text
- https://mabuksusu.com/contents//files/35782465908.pdfIn PDF document text
- http://qiangka.com/ckfinder/userfiles/files/kajoxapopopejipenegoruru.pdfIn PDF document text
- http://rowerowaszkola.pl/imgturysta/files/69628893583.pdfIn PDF document text
- http://songhungthuan.com/upload/files/sejosoga.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f53c238d8d9---nixewujefalik.pdfIn PDF document text
- https://signos.larrialdiak.es/files/galeria/files/vunexosofodimutuvenikoxaz.pdfIn PDF document text
- http://oppedisanorobertosrl.com/userfiles/files/56132658229.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16081f9f714fa4---27748770473.pdfIn PDF document text
- http://dalieuht.com/app/webroot/uploads/files/nejudilaxupivobiner.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd4cd5785a---47283688495.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/6611fb8a246d618df9c5b8a21050909e/gepelagofad.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/0v5eb551hhpds8v88c87o4ods1/79012718320.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=freight+forwarding+terminology+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_off0000e282.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE282 | 10952 bytes |
SHA-256: a631a1a5035c70daf634157fe08f747f2ef17fb933ddbf88915f69e6163e5871 |
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font_01_sfnt_off0000fb88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB88 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001139a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1139A | 17384 bytes |
SHA-256: ec6d989ab63f19fdce15496552cb58a523949fb5f2d97b24a71c5d3119298555 |
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