MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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://chulatutoracademy.com/chulatutor/ckfinder/userfiles/files/duvosubarezedodoranila.pdf In PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/2k4ev04o9emqbp2gqhstkmugaa/3232498774.pdfIn PDF document text
- http://www.themixchange.com/userfiles/files/fanorelelawufuzilamuruno.pdfIn PDF document text
- http://dnt-mayak.ru/content/File/12410423890.pdfIn PDF document text
- https://alice-immo.com/userfiles/file/79621559386.pdfIn PDF document text
- http://appartementslisa.it/an3_Uploads/file/zikelasawaviwumamom.pdfIn PDF document text
- http://odessawa.com/userfiles/file/16101348105.pdfIn PDF document text
- https://anninhsieuthi.online/upload/files/19415404424.pdfIn PDF document text
- http://kozelsk-adm.ru/files/uploads/files/55256408722.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/f7abvn6gf7ci3hv0ltlfq7c9i1/5080635414.pdfIn PDF document text
- http://marcth.pl/media/fck/file/90654777882.pdfIn PDF document text
- http://k-sta.kr/FileData/ckfinder/files/20210919_2CD809BB6533540E.pdfIn PDF document text
- http://opusincertum.it/userfiles/files/kuxarowimimunirekazupuxo.pdfIn PDF document text
- https://beeshark.ro/app/webroot/files/userfiles/files/84926240392.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/fiwixifurelipotimuvumaliw.pdfIn PDF document text
- http://lsphc.com/userfiles/file///29477668443.pdfIn PDF document text
- https://unicon-msk.ru/data/files/53189449939.pdfIn PDF document text
- https://lingchuanfloor.com/app/webroot/userfiles/files/77594744863.pdfIn PDF document text
- http://zhongguohuachun.com/d/files/38000913011.pdfIn PDF document text
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/8h2m11vi7aobe4veqsnrk57jg9/29918696626.pdfIn PDF document text
- http://gt-outillages.fr/ressource/site-image/files/tafotokulowefubo.pdfIn PDF document text
- http://whkmradio.com/userfiles/file/dumafejujapev.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131ffdbb6b9a---xumewewififegemelifabofav.pdfIn PDF document text
- http://artgrafika.cz/userfiles/file/88402374401.pdfIn PDF document text
- http://billsky.ee/files/file/83701142658.pdfIn PDF document text
- http://sjhtractor.com/d/files/rotexapovari.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=law+of+cause+and+effect+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_off0000b2ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2BA | 15288 bytes |
SHA-256: 1d9cd44f158120e0b12c744a89d327fb5f5abf5b9e43967d3af61fbc041ba979 |
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font_01_sfnt_off0000d922.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD922 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF139 | 10516 bytes |
SHA-256: ea6d112644c4238163c3e5daeb0aea14ddf2170b3b62ae26e306286c099e5f8b |
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