MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to redirect users to various websites, masquerading as quiz answers. Several heuristics indicate the presence of a link farm on compromised WordPress uploads, and the ML classifier strongly flags this PDF as malicious. The primary attack pattern involves directing users to potentially malicious or deceptive content via a series of indirect links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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.anandtirth.com/wp-content/plugins/super-forms/uploads/php/files/i8tq32k9ni6k16gd319jhiapf0/3857965963.pdf In PDF document text
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/40b511cf3bbac84c8d9c8286a536bed4/20812105969.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/34423811063.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ae34394238---76286570202.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/8422fea52e779445e89079a705930f08/33121434572.pdfIn PDF document text
- https://steklo-shik.ru/userfiles/file/pudebavolaxejokovubotezar.pdfIn PDF document text
- https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/3a709e94aa0fbe197366e017daa4a175/wusobup.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a784871a9d5---13433720108.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2650e2e1a---7994427750.pdfIn PDF document text
- https://augsburger-dartliga.de/uploads/file/basunapawujojonixuludete.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0de72b189---578631572.pdfIn PDF document text
- http://megat.pl/uploaded/fck_files/file/daxababatonokajare.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/kodadudiwiwuzibala.pdfIn PDF document text
- http://kondicionery-vidnoe.ru/upload_picture/file/38910483325.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d3405491c---70625249882.pdfIn PDF document text
- http://musorcentrum.hu/files/article/file/3625284089.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/72a2cc1dca001be9e7bee0cd0a6a4432/gimezowuxi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=catchphrase+quiz+answers+100+pics+catchphrases+11PDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011fce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FCE | 5356 bytes |
SHA-256: 7af56f04bcf20a021478a175e0f5ba81569d8d28581de6153560625dc2481c3d |
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font_01_sfnt_off0001321e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1321E | 11156 bytes |
SHA-256: 442b0ba054168620e5b68fcd3c8c4b3b18657aea53f48ddd41a68870d0b25358 |
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