MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to various PDF files hosted on compromised websites, including a WordPress upload storage. The presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://bedandbreakfastchia.it/userfiles/file/59022776033.pdf In PDF document text
- https://pracowniatechart.pl/fckpliki/file/dijezi.pdfIn PDF document text
- http://alda.pl/ckfinder/userfiles/files/71924554586.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/84518421852.pdfIn PDF document text
- http://bestofbeer.ru/ckfinder/userfiles/files/50511009734.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f553c271e4---zifuvubinegixefijabiwej.pdfIn PDF document text
- http://wxeina.com/userfiles/files/nuxidejuxozi.pdfIn PDF document text
- https://jechrina.gr/FCKeditor/userimages/file/soxoloxe.pdfIn PDF document text
- http://squash-fitness.cz/userfiles/file/67909848842.pdfIn PDF document text
- http://minhphucvietnam.com/uploads/userfiles/file/72187454966.pdfIn PDF document text
- http://www.mbk-montage.nl/ckfinder/userfiles/files/ruvizofodezejem.pdfIn PDF document text
- http://lexen.ca/userfiles/files/vades.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/sazenufaxagadefopusep.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-9/20210909081534922786.pdfIn PDF document text
- http://chongthamnguoc.vn/img/files/45126836984.pdfIn PDF document text
- http://boldogelet.hu/media/kavosanexom.pdfIn PDF document text
- http://211.129.1.225/system/ckfinder/userfiles/files/56569367600.pdfPDF link annotation
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/614e568f9bd78924e22fb0b36266fe77/moxojon.pdfIn PDF document text
- http://trustycctv.com/ckfinder/userfiles/files/68121527195.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/feliweju.pdfIn PDF document text
- http://joesservicecenternj.com/userfiles/files/kisanabujiziguboj.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf80b461ff---84256747173.pdfIn PDF document text
- http://odesignlab.ru/admin/ckfinder/userfiles/files/16204728055.pdfIn PDF document text
- https://samirkumarpaul.com/ckfinder/userfiles/files/56550946510.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137d50546f11---57846071891.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=free+download+tekken+7+for+ppssppPDF 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_off00010409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10409 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011c1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C1B | 18552 bytes |
SHA-256: 26a02f92a7c466658418b1cb51046a06aea9262293d0edd85734c528e89e72e9 |
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font_02_sfnt_off00014c8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C8F | 10604 bytes |
SHA-256: 0653da04ff02dc049049bdcfc022cea44d340d28dac72a0206160a62386c358f |
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