MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of embedded URLs and the nature of the heuristic firings point towards a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://jocoseatee.com/userfiles/files/24520342127.pdf
- https://ximangcampha.vn/upload/files/70362756097.pdf
- http://hockjoohin.com/admin/uploads/file/duwodovojosefikemiroboraw.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/243bd5f241280061e9f26b3c023d14c4/pumalevosemufeforu.pdf
- https://tdemo.order-pro.com/ckfinder/userfiles/files/83341240784.pdf
- http://dnepropress.net/files/file/12304248867.pdf
- http://baozhaopharm.com/upload/files/51763407241.pdf
- https://karlschool.org/uploads/files/202109040956498907.pdf
- https://semsaesp.com/ckfinder/userfiles/files/43707604853.pdf
- https://shriramsteels.in/public/ckfinder/userfiles/files/68530963207.pdf
- http://www.heatandgas.com/EditorImages/file/zugosarasiwikusomaguvese.pdf
- https://www.nhabe.com.vn/ckfinder/userfiles/files/11266082225.pdf
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/61825555599.pdf
- http://www.jindatunnel.com/up_files/file/tozowavabejoxigu.pdf
- http://velapower.com/glwh/UploadFile/file/2021090221101273499.pdf
- http://maslatalaia.com/userfiles/file/55184516565.pdf
- https://dolnoslaskialarmsmogowy.pl/imgturysta/files/65347291359.pdf
- https://eqonetech.com/upload/userfiles/files/73256632232.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/db554fa4ca6953a3a6c69d488172782c/lerosedetiwenezuxetinulis.pdf
- http://back2wood.de/userfiles/file/xifixitilifag.pdf
- http://simoncaulkin.com/images/mikosanesimu.pdf
- http://speckrepeg.by/UserFiles/files/35515463893.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/mhoq6ijvji9hcupa1qhfif4qpd/kekawekojidetirepomire.pdf
- http://xn----7sbakn3aoflleitf3m6a.xn--p1ai/userfiles/file/nepijix.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=dokkan+battle+mod+download
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c35d.bind59369af583189ee4c69d930763aaaf8fba8ae691e4299278be8e456cef7d9d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC35D | 10368 bytes |
font_01_sfnt_off0000dad8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAD8 | 16792 bytes |
font_02_sfnt_off0000f2e9.bin800554d3d6320da9c8ab21a3ad3d270f40e7a92360d7538c059d647d952d1d34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E9 | 16188 bytes |
font_03_sfnt_off0001089b.bin7bc81a243e5265522685ba84b6ac03a84ba2fd6697d164675b64c3bccba531be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1089B | 20892 bytes |
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