MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of creating link farms on disposable hosting, and the presence of 'utm_term' parameters suggests a phishing or SEO manipulation attempt. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 https://krisoc.ru/uplcv?utm_term=last+day+on+earth+generator+hack PDF link annotation
- http://smepil.com/ckeditor/userfiles/files/gurisajafomerebuke.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/8bb5a67982d6b50f6063596857a40063/wonizinigewotorurulazo.pdfIn PDF document text
- http://sunnysolutions.it/uploads/assets/file/dazavukafavesojuneradetop.pdfIn PDF document text
- http://holdemigny.fr/ckfinder/userfiles/files/72283431307.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161437767ba20c---59275508462.pdfIn PDF document text
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/namugixodetisenu.pdfIn PDF document text
- https://2-view.org/home/view/public_html/ckfinder/userfiles/files/96735358930.pdfIn PDF document text
- https://skykharchono.mn/editor/files/28952211582.pdfIn PDF document text
- http://emploi.nat.tn/ckeditor/ckfinder/userfiles/files/1061566215.pdfIn PDF document text
- https://aymexco.ro/ckfinder/userfiles/files/40371130262.pdfIn PDF document text
- https://zhavezbozi.cz/data/file/92211810392.pdfIn PDF document text
- https://turdv.ru/SITE/files/editor/file/29329356161.pdfIn PDF document text
- http://skisun.it/userfiles/files/41550991770.pdfIn PDF document text
- https://designclarf.it/file/potafozanasujabuzixuze.pdfIn PDF document text
- http://belloverde.net/emailer/file/vaxexabobaruwo.pdfIn PDF document text
- http://nitecoreromania.ro/files/file/10810638221.pdfIn PDF document text
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/af0e2ec823d7371da6beffb9959bf653/43341069755.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614062d00b2d1---zuzakuraviwusokav.pdfIn PDF document text
- https://k31szmq42-nu28.com/contents/files/wonapabegoranisojaw.pdfIn PDF document text
- https://yukkumpulgroup2.com/contents/files/govidotok.pdfIn PDF document text
- http://pravkniga.ru/files/userfiles/files/91054811638.pdfIn PDF document text
- http://mcserpenti.com/userfiles/file/vevipupijawag.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16140874e1f1b5---1453451678.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/45342987133.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_off0000d9da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1F1 | 10676 bytes |
SHA-256: ab73fad42be9d3fb337ded65f732b35eae7b5582ea32164edf5b22f0a91d1f50 |
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font_02_sfnt_off00010a2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A2E | 17460 bytes |
SHA-256: e919d39e94fe827d337e8f2da55a6457d6c0ab6c607ac48dcdbf10183a7f69a2 |
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