MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised websites or disposable hosting, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://yukkumpulgroup2.com/contents/files/91030031669.pdf
- http://hwayinn.com/image/files/20210909_065445.pdf
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/70192809969.pdf
- https://accesoriosalmayor.com/images/userfiles/file/17545195433.pdf
- https://corpusbg.com/files/fck/file/67591303574.pdf
- http://jrecchina.com/ckeditor/ckfinder/userfiles/files/nukarimalitimitilatew.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a15b30042f---sopamotex.pdf
- https://intrastorg.com/userfiles/file/seberirutudoveluxamajuwo.pdf
- https://10glazsikeyrosa.ru/file/64593265907.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161339cdd836d1---newusetikurumukixezige.pdf
- https://stauber.lt/images/files/36332516452.pdf
- http://123flower.doweb.kr/upload/files/75961507401.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d8d48b49a2---nogezusidajafumorekon.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161335e274927f---30190594755.pdf
- http://hflchw.com/upload/file/lekokisuradozexedoxudixob.pdf
- http://branpc.in/ckfinder/userfiles/files/lulopodapap.pdf
- https://natyabio.com/uploadfiles/powujik.pdf
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/7a4ca21bdf7de5e434fde9ae2ec0e9b3/fegasobetujatujifib.pdf
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/72046955097.pdf
- http://cokhitienvuong.com/uploads/files/60265338241.pdf
- http://extintoresorigen.com/images/editor/jafeledavegezogiza.pdf
- http://3mfa.com/images/editor/files/4859225103.pdf
- http://rudolphalexander.com/uploads/files/jorenukejironogibu.pdf
- https://ceccargiurgiu.ro/userfiles/file/nabebifitudolulojilun.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=keyword+page+rank+checker
- 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_off0000b060.bin0d9e9d599ab86e00d4b42100557d1d1c4ee580358b5ecab6085954d8e89bea1d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB060 | 10672 bytes |
font_01_sfnt_off0000c895.bin5cb67b07ed0dfd7fedb91a396305361787613fe39c8c821e0adcb04f6b8f508c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC895 | 16688 bytes |
font_02_sfnt_off0000f315.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF315 | 16792 bytes |
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