MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF is identified as a phishing lure due to its image-only nature and embedded clickable links. Several heuristics indicate it's a link farm hosted on compromised or disposable domains, designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to lead users to a phishing site or a download of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://sun-tes.ru/files/file/74257767755.pdf
- http://ecoaga.com/documentos/file/tesokafupone.pdf
- http://cjmfgx.morefriendship.com/upload/files/36433060280.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb0e954269---52051533307.pdf
- http://wronba.com/uploads/wysiwyg/file/bagabosomajoban.pdf
- http://inruho.ru/ckfinder/userfiles/files/bajuwatamagonut.pdf
- http://rm-centr.ru/uploads/file/31720315862.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16137adfcaedb4---juruzojotejajakezuxefub.pdf
- http://carrozzeriabosini.net/userfiles/files/dikepafibineladopoxedo.pdf
- https://coimbatorepressclub.com/FCKeditor/userfiles/file/merogapiguwaxegakekoj.pdf
- http://vaithun.net/upload/files/wimoj.pdf
- https://dalycity.com/wysiwygfiles/file/82154655938.pdf
- http://xn--h49al71atridzo.com/userData/board/file/xexejakubisun.pdf
- https://chambres-lannion.fr/userfiles/file/95612834440.pdf
- http://synowka.pl/galeria/file/85566195156.pdf
- http://yearbookplus.com/uploads/ckfinder/files/29317669124.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1613548ce1191e---59233642014.pdf
- https://it-remarketing.pl/app/webroot/media/files/zokesurebewuwidazukugi.pdf
- http://portaldeaquidauana.com.br/ckfinder/userfiles/files/42116125986.pdf
- http://rungruangsteel.com/public/upload/userfiles/files/84870019051.pdf
- http://yarpb.ru/pic/userfile/52635747797.pdf
- http://euro-ex.com/images/blog/file/396439133.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161334eeb97df8---75161081057.pdf
- https://kccegis.com/upfiles/content/file/20210912123607.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=carbon+and+its+compounds+class+10+full+chapter+notes+pdf
- 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_off0000b340.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB340 | 16792 bytes |
font_01_sfnt_off0000cb52.bina11f6c6ed6a93b5ef667a68181c4933d05043a3f4b0b2446ec8aee1cfb919bc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB52 | 13988 bytes |
font_02_sfnt_off0000edbd.binf0ff23057d3c3a674a6f5957e681d7c3143b76f3f3ab01d4567ea46cc1a777e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDBD | 11332 bytes |
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