MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to numerous external URLs, many hosted on potentially compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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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 http://keacg.com/upload/files/99234167325.pdf In PDF document text
- http://abwrva.com/uploads/files/51270318408.pdfIn PDF document text
- https://burgaseguros.com/userfiles/file/10167772376.pdfIn PDF document text
- http://normel.org/files/upload/file/doxevatumubefunek.pdfIn PDF document text
- http://beloit1962.com/clients/8/83/8368a4f838dea3176655029ae9e337da/File/38590395927.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16095fdf88017b---vivazoluxozasujatod.pdfIn PDF document text
- http://shipagents.nl/uploadfiles/file/wodos.pdfIn PDF document text
- http://dui-antidote.com/images/userfiles/file/risaven.pdfIn PDF document text
- http://ankaser.com/userfiles/file/limefiwamenigadikokawon.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/fitakepupuxid.pdfIn PDF document text
- http://hrjok.com/uploadfile/file/takasitesabazowu.pdfIn PDF document text
- http://quangcaosms.org/media/ftp/file/17355402866.pdfIn PDF document text
- https://prtl.pl/userfiles/file/wopolufi.pdfIn PDF document text
- https://lixtech.com.tw/ckfinder/ckfiles/files/sirenovitakuzi.pdfIn PDF document text
- http://a-mega.ua/images/uploads/file/sefofifapij.pdfIn PDF document text
- http://engroupe.ca/aym_image/files/juxalatukukexaposudof.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/turudad.pdfIn PDF document text
- https://sanidom.pl/img/file/17801237056.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/c7af9d45af7a206a943dbe56a782bf86/33152971575.pdfIn PDF document text
- https://vieclamday.com/userfiles/file/1985217742.pdfIn PDF document text
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a6f73e8ab---55165143177.pdfIn PDF document text
- http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/majazifin.pdfIn PDF document text
- http://a1-automotivegroup.com/upload/files/40991350631.pdfIn PDF document text
- http://uci.ir/userfiles/file/71279822662.pdfIn PDF document text
- https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/ac7fdec11109e547d943b3473590a9da/33453686624.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=2020+dodge+challenger+rt+scat+pack+reviewPDF 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_off0000f545.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF545 | 19752 bytes |
SHA-256: 9ca6e956c9c883475825012b5acea9eb7feff33142bba31e3f1ca05aac38da5f |
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font_01_sfnt_off000126f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013f0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F0C | 11180 bytes |
SHA-256: dab99a030f884b8426ba9da4450afeccadc9120a82068e27a01f903ecfbdfe4e |
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