MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://queure.ru/uplcv?utm_term=download+fifa+20+mobile+offline PDF link annotation
- http://aarogyamedico.com/userfiles/file/tomagoxebukobavuka.pdfIn PDF document text
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/8m8inrp9lau1o050laqgd9c2bp/48994776405.pdfIn PDF document text
- https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/bea3k44fe2vjc4kkfj0joa0pvb/12393980111.pdfIn PDF document text
- https://gachbinhduong.com/upload/file/33494077778.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8db30839e---xunokisupemil.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/2g3266058vihti2q7e06jia7vk/17320147696.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aea1785f8b7---lisujajajewuduwo.pdfIn PDF document text
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/m5g0vb0jcu26lvte9v739ad0pn/70865037387.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a71ef5a6073---vapivu.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/18bfds094ntvsipe0f3l78l7p7/gutigexawojal.pdfIn PDF document text
- https://mclarenquartz.in/ci/userfiles/files/75200786107.pdfIn PDF document text
- https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/92268918125.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/3092415808f8e75d606bd9fdf7979548/duvowozeneto.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/8eb28d875a1abef3f4bde4b6816fa35d/gedatetibopugufedikebavag.pdfIn PDF document text
- http://amandatravel.com/userfiles/file/tifipu.pdfIn PDF document text
- https://euroroma-bg.org/files/file/zavajuxifadoraforum.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c13e32bc71---ribizalatudibixowisun.pdfIn PDF document text
- http://erdivigado.hu/userkepek/file/rudojajajufovutinixapep.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://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_off0000eade.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEADE | 5284 bytes |
SHA-256: 856e50fec9e3a2c5ce2d28a984f66f2f75338ba8f321a895785ea6c478aa2bb0 |
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font_01_sfnt_off0000fce3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCE3 | 11060 bytes |
SHA-256: a2861da1e156b7441367973cd6c27c142735cc80574d01951a9ca99c9cd49a94 |
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