MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly indicates a phishing or malware distribution attempt.
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://smidgel.ru/uplcv?utm_term=envision+math+2.0+volume+1+answers+grade+5 PDF link annotation
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa37b0a0b39---1833195572.pdfIn PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/vls0q18tqp4s9hogftni76sn1m/mexikezepuzibenumufarojof.pdfIn PDF document text
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/3748860c84d1ab4a10525759df34f1b7/4552300426.pdfIn PDF document text
- http://hongshengfish.com/uploadfiles/2021051320191562464.pdfIn PDF document text
- https://local-atlas.ru/userfiles/files/paloliratoto.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609ae277be992---39500707603.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16078db265a103---3581849588.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/oposbvbu20cttrn0h51s377656/lizod.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/94137761649.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/vdlcen6h2jd0sldgamds4lmk3e/warirodisebim.pdfIn PDF document text
- http://group-anons.ru/userfiles/files/dinijifimemawos.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/9455047184.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-5-22/20210522063354170997.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1607249461c85f---tazele.pdfIn PDF document text
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c5d1dfe63---23398901817.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
- 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_off00017cf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17CF3 | 5828 bytes |
SHA-256: dc652b56bb7c7c1696830fef582672d7ec0db96e13f87822da90b0bb5380536d |
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font_01_sfnt_off000190ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x190CA | 12048 bytes |
SHA-256: 2e1f0775fe2e474ad08ca4aadd06e6e4a9d3374e2ca7728fc1bea3e15cc10556 |
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font_02_sfnt_off0001b9f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B9F5 | 16072 bytes |
SHA-256: f3b752e25d2e3098dc5b351a512c5ca672d2b137fcb7ddb3f81b2384be51d5c3 |
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