MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting and are structured as link farms, a common tactic for phishing or distributing further malware. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a non-clustered link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 5
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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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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://crysiq.ru/uplcv?utm_term=find+background+apps+android PDF link annotation
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/161338a5512f06---jopepu.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/68101277397.pdfIn PDF document text
- https://harkakotony.hu/UserFiles/file/vebutatilosowelamubezonis.pdfIn PDF document text
- http://all-premium.com/user_file/files/zotewusitugojuv.pdfIn PDF document text
- https://shiokuda2.com/contents/files/48219229892.pdfIn PDF document text
- http://vizugy.hu/uploads/files/files/78481450634.pdfIn PDF document text
- http://finproekt-msk.ru/userfiles/file/50237340396.pdfIn PDF document text
- http://xn--c1aejbdnke.xn--p1ai/admin/ckfinder/userfiles/files/vuvegi.pdfIn PDF document text
- https://lbk-ingatlan.hu/uploads/file/dubene.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/vumizevila.pdfIn PDF document text
- http://ibnuaffan.com/ckfinder/userfiles/files/83296511932.pdfIn PDF document text
- http://tiendanatacion.com/noticias/files/34212833784.pdfIn PDF document text
- http://assotechne.eu/userfiles/files/82000346787.pdfIn PDF document text
- http://compsult.net/userfiles/file/14487641400.pdfIn PDF document text
- https://lawyerupsmart.com/tempimg/file/5037891875.pdfIn PDF document text
- https://shipnhanh247.vn/asset/files/50385012672.pdfIn PDF document text
- http://sameiroeventos.pt/ficheiros/79242995608.pdfIn PDF document text
- http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/jugugidi.pdfIn PDF document text
- http://fantasymusic.it/userfiles/files/7179281431.pdfIn PDF document text
- http://studiozammuner.eu/userfiles/files/nazebufuxunabuxifowiros.pdfIn PDF document text
- https://makojudo.pl/zdjecia/fck/file/18075732916.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/26803537990.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134d9886d5b1---71619504325.pdfIn PDF document text
- http://greentreeprep.com/cote_dor_import/admin/ckfinder/userfiles/files/kuzopufazud.pdfIn PDF document text
- http://spy-military-labs.com/userfiles/file/3690849942.pdfIn PDF document text
- http://zatacorp.com/upload/files/62438217536.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_off0000dfd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD7 | 10724 bytes |
SHA-256: 435575b45b446f3ae49f128277fcbed12158cf0d2cd102697ffbc0de09f2cc68 |
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font_01_sfnt_off0000f812.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF812 | 18020 bytes |
SHA-256: 5cb642891baf09c5d8f9c049153fb8bd025797839d7e419646289031f4377c41 |
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font_02_sfnt_off0001264d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1264D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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