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 compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The file's structure and URL patterns are consistent with a malicious PDF dropper.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://laborke.ru/uplcv?utm_term=subway+surfers+infinite+coins PDF link annotation
- https://anaksemut.com/contents/files/mulenudokafurosadofe.pdfIn PDF document text
- http://taiwan-casters.com/userfiles/file/42820851267.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/11406056055.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16137d91f086c7---17557659677.pdfIn PDF document text
- http://zekejozsef.eu/FCKfeltoltott/file/60111873374.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139d3200db6c---77561383833.pdfIn PDF document text
- https://mamadona.ru/ckfinder/userfiles/files/64122827454.pdfIn PDF document text
- https://finliz.lt/i/File/89108105976.pdfIn PDF document text
- https://wanfutemple.urwaydesign.com/data/file/userfiles/files/88835882008.pdfIn PDF document text
- http://miyagi.chi-kara.net/Upload/files/fetopokifavoz.pdfIn PDF document text
- http://panel2conso.com/userfiles/file/95552613343.pdfIn PDF document text
- http://pttaccounting.com/userfiles/files/nuguzugoju.pdfIn PDF document text
- https://mtmnetwork.net/uploadEditor/files/toferibapefugu.pdfIn PDF document text
- https://ytdrive.com/CKEdit/upload/files/mubikubakonoritez.pdfIn PDF document text
- http://dc-42351dc5a6b3.prshots.es/uploads/userfiles/1630569180/files/nudedi.pdfIn PDF document text
- http://timavoshipsupply.it/userfiles/file/75484646675.pdfIn PDF document text
- http://cnokorea.com/userfiles/file/65120928725.pdfIn PDF document text
- https://chambres-a-la-ferme-plouzelambre.fr/userfiles/file/migusegasunudujepusaxogo.pdfIn PDF document text
- https://euforbiabulgaria.gbinvest.net/uploads/pages/files/fipogudi.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/puferefagoduk.pdfIn PDF document text
- http://gutachterbewertung.de/userfiles/file/ponasim.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/7nv1jv8tim1p8ujq83ln0qir4f/tanipevetovoxelaxe.pdfIn PDF document text
- 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_off0000af00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF00 | 14852 bytes |
SHA-256: 6409649dc1cd542e19b0cf24ce62d8caab771c99050aaaf05f721bf233377509 |
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font_01_sfnt_off0000d45a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD45A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ec71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC71 | 10796 bytes |
SHA-256: 57f88d88339c6ff13a022554a2c8e2db4da9bbe73e198aad65de7c3130f3d4aa |
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