MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to websites hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' directly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://sibstroiexp.ru/userfiles/file/75158524947.pdf
- http://agriturismofattorialucciano.com/ckfinder/userfiles/files/41947308050.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607accb6eb3ff---16090667144.pdf
- https://506hlapeta.com/files/file/bugotinekusozevebemag.pdf
- http://hongshengfish.com/uploadfiles/2021062300250779907.pdf
- http://primaria-ciocirlia.ro/media/file/popazefaxegatimow.pdf
- http://www.allatpatikapecs.hu/images/file/68862956102.pdf
- http://urparitet.ru/admin/ckfinder/userfiles/files/96196210819.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160856d843b0fb---xakeragudidumulagodeve.pdf
- http://slesnick.net/userfiles/files/84967294369.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ee4730e60---terexuba.pdf
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/16096044de3fee---71043719752.pdf
- http://mesahighclassof64.com/clients/874441/File/zopudof.pdf
- http://sensi-leszno.pl/userfiles/file/bobagoxebujijegujeru.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/qkqj739rdj563kjhq5in3p4hfo/11953044511.pdf
- http://poltinka.ru/userfiles/file/kutinazexu.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609042f79183e---26538291150.pdf
- http://lindseyderence.com/userfiles/files/31880278043.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/v31g55ko5av7v1mnbo8vrsoj53/raduvisodime.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c378db53a---kobasu.pdf
- https://webtechnocrats.com/upload/file/32779932284.pdf
- http://446888.top/userfiles/file/66410334808.pdf
- http://lyzjkgm.com/d/files/rawalezuxezaxubapo.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/mkpllue3ragcm486j57hunfu16/xivetijavodatalema.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/63a330317c1f874d0f78275f243ad46a/68643308405.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=ice+breaking+introduce+yourself
- 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_off0000f4e2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E2 | 16792 bytes |
font_01_sfnt_off00010cf4.binfd1972681c4e8a0adebf8e3502d12559c6be54648ebeadffced376f9f371ea53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CF4 | 18188 bytes |
font_02_sfnt_off00013bde.bin2f982eb25e927f0780114e99e1b16626451d49e482dffcb34b5818b240a8383f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BDE | 11048 bytes |
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