MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS upload directories and 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 distribution via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://aplusadvance.com/naver_editor/data/file/dusarosisizumowu.pdf In PDF document text
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160771739addb5---tudumodafefefamukopajejuz.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/1d5nica2nreg68cg3qlcg25csg/jobaruzukabolaxowujonav.pdfIn PDF document text
- http://3e-recycling.ru/app/webroot/filesfiles/wuroki.pdfIn PDF document text
- http://merlegdoktor.hu/tmp/59260812626.pdfIn PDF document text
- https://sofanet.ro/ckfinder/userfiles/files/7379951806.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/e6a7f1cee09aad050392957c2501f2a8/27506860500.pdfIn PDF document text
- http://thicongdiennuocmiennam.com/uploads/files/15386792079.pdfIn PDF document text
- https://fundreamz.com/ckfinder/userfiles/files/4820769520.pdfIn PDF document text
- http://bhk-aindling.de/userfiles/files/vefubamevewisifetagavi.pdfIn PDF document text
- https://argekaucuk.com/nbg/upload/files/vepexelirage.pdfIn PDF document text
- https://infosantiere.ro/userfiles/file/nupebuzukoxosunuzitiniv.pdfIn PDF document text
- http://vyveva.eu/UserFiles/File/sudidabimibesivisiraseri.pdfIn PDF document text
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/d10bbed67139f56ca874f252fd4cce9c/jujefesufofufepofu.pdfIn PDF document text
- http://goksirlambinowice.pl/img/upload/files/bekifaxegegagukutu.pdfIn PDF document text
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/65895133751.pdfIn PDF document text
- https://vientangluc.com/upload/files/89458160159.pdfIn PDF document text
- http://fautographie.org/images/userfiles/files/vewurixuzenesunuw.pdfIn PDF document text
- http://charontrade.hu/data/file/99706883790.pdfIn PDF document text
- http://www.tractortools.cz/ckfinder/userfiles/files/53688634263.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/a739826e273ea1e35eff282b6c1c5d58/mudotikabiramefo.pdfIn PDF document text
- http://getampedmag.com/ckfinder/userfiles/files/folisijapumegure.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/160afa736a850d---43909241176.pdfIn PDF document text
- https://auto826.vnpec.xyz/uploads/files/40313317253.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=historia+do+transporte+publico+no+brasil+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_off0000e754.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE754 | 19552 bytes |
SHA-256: f8241dc45ded7d36ed4fb3f8caac5340d839565f660995ce56920a8b013b57cd |
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font_01_sfnt_off000118be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000130d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130D5 | 10844 bytes |
SHA-256: ceaa14a4b5b59e2471cbc74b95859b24f948a350cb6311f051f638c94ad9708a |
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