MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple unknown URLs hosted on potentially compromised or disposable domains. The presence of PDF-specific heuristics related to URI and link farms suggests the document's primary purpose is to redirect users to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133108b50979---25338079847.pdf In PDF document text
- http://checopharma.com/upload/files/madixam.pdfIn PDF document text
- https://vieclamlaocai.vn/webroot/img/files/wofixesakelinuluzujezi.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130080b06c7b---8268086449.pdfIn PDF document text
- http://bielle-srl.com/userfiles/files/6893255098.pdfIn PDF document text
- http://chip-chup.hu/upload/file/61385161316.pdfIn PDF document text
- http://birizgardenhotel.com/userfiles/file/42692183350.pdfIn PDF document text
- http://fine-cottage.ru/userfiles/files/33278470805.pdfIn PDF document text
- http://racecross.com/upload/edito_fckeditor/file/99346616691.pdfIn PDF document text
- https://dananeye.com/uploads/files/202109022115423183.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/28dvfjrthdr2o9rmpe2kfblt0q/39752089031.pdfIn PDF document text
- http://kruengrangthai.com/files/files/xajaxebenapu.pdfIn PDF document text
- https://baglab.pl/galeria/file/15665843216.pdfIn PDF document text
- http://arucax.am/user_images/file/nixemaregizov.pdfIn PDF document text
- https://northcoteplaza.com/userfiles/file/wamuboduto.pdfIn PDF document text
- http://iuoooo.com/filespath/files/20210904065313.pdfIn PDF document text
- https://ietc-oman.com/userfiles/files/38920888115.pdfIn PDF document text
- http://rzn-house.ru/upload/file/19973137126.pdfIn PDF document text
- http://reyazahmad.bscsaoner.in/ckfinder/userfiles/files/62069182846.pdfIn PDF document text
- http://heureka-cz.eu/files/79493551342.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/19969973713.pdfIn PDF document text
- https://tatsolarlight.com/uploads/files/midosituremobuzogu.pdfIn PDF document text
- http://cheers-gifts.com/userfiles/fogerabepositulavad.pdfIn PDF document text
- http://geopraxis.it/userfiles/files/88707923614.pdfIn PDF document text
- https://xylemleads.com/userfiles/file/bosinepep.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=fundamentals+of+logic+design+7th+edition+pdfPDF 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_off0000c866.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC866 | 11096 bytes |
SHA-256: 9839f3e799b439f44404b24f8bee9c7f5960cdf07706df384d7dbfad65df605a |
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font_01_sfnt_off0000e1e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1E8 | 17576 bytes |
SHA-256: ab913cbcf0ca7044ceccc9014dbb3ec0257378581171eb1dc40e63e92f53eff5 |
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font_02_sfnt_off00010f0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F0B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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