MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on disposable domains or appear to be part of a link farm designed to obscure the true destination. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a deliberate attempt to use compromised or low-reputation hosting for malicious redirects. While no scripts were explicitly extracted, the nature of the links suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://daithanhnam.com/upload/files/1290479519.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b59831e3cf---rovegorunuwumimuxi.pdf
- http://jorkurojus.com/userfiles/file/bazefuzawunikudaraboza.pdf
- http://cadelupo.it/userfiles/files/vumatekawabexo.pdf
- http://anapro.com/ckfinder/userfiles/files/63516505609.pdf
- http://isisthailand.org/file_media/file_image/file/nivex.pdf
- https://debo-fit.be/userfiles/file///naraxulenujodosonoro.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/mt538sdo23l2mmidbk090b5gh7/rusitaduradut.pdf
- http://www.culturehousesun.org/photos/file/83920310379.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613beee3f3feb---dedurukinameb.pdf
- http://zoekidsworld.com/userfiles/file/61379145379.pdf
- https://greenfuturevietnam.com/Upload/files/gopakipajomixijakiw.pdf
- http://nattukoottam.com/userfiles/file/nijutadudase.pdf
- http://apcmagon.com/userfiles/67017370071.pdf
- https://encoyun.com/calisma2/files/uploads/86953860418.pdf
- https://webvitamin.vn/app/webroot/uploads/files/85325806884.pdf
- http://hotelrealerimini.it/userfiles/files/sakalimetal.pdf
- http://capriololaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/suxudejizewokumakawuxev.pdf
- http://chromavials.com/d/files/tatovis.pdf
- https://btsmstlucia.com/atomicsteps/upload/userfiles/file/35176761150.pdf
- https://maggievanostrand.com/uploads/media/file/ravuroxutadazazaxu.pdf
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/31378487441.pdf
- http://ilturismoinitalia.it/userfiles/files/92575918439.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7de1b20e1---33982046787.pdf
- https://umutisi.com/umut/upload/files/63560070141.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=watch+my+hero+academia+season+5+english+dub
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d185.bine90008b883496a6470f1bf55fa5251d2735a54ec258898f5e2b9d031b0201bd7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD185 | 11296 bytes |
font_01_sfnt_off0000ebc3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC3 | 16792 bytes |
font_02_sfnt_off000103d5.bin51698b33edd2d06b9a4d2927aff133d0ebc293037cdbb033e90434a80d154379 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103D5 | 19600 bytes |
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