MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple heuristics indicating malicious intent, including random URL links and a link farm on disposable hosting. The ML classifier and ClamAV detection strongly suggest this is a phishing or trojan PDF. The presence of a 'download button' lure further supports a malicious workflow aimed at tricking the user into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://smidgel.ru/uplcv?utm_term=biological+science+6th+edition+pdf+free PDF link annotation
- https://stormester.no/files/file/kafitufob.pdfIn PDF document text
- http://madiagranitosilano.it/userfiles/files/fetit.pdfIn PDF document text
- http://taikenplan.jp/ckfinder/userfiles/files/gigenomujupepumidenafev.pdfIn PDF document text
- http://aven.su/userfiles/file/fokejokizutagikuruf.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/puzapigedipedelediduzuk.pdfIn PDF document text
- https://patoman.ro/ckfinder/userfiles/files/telesapepogiwibafumukodan.pdfIn PDF document text
- http://valentine.tutaylamhet.com/storage/ckfinder/files/28488690347.pdfIn PDF document text
- http://slovbau.sk/test/userfiles/file/wogirajadixetekuvixigeris.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613838180143e---fulodopidukodidufuma.pdfIn PDF document text
- http://bamila.vn/luutru/files/ximofodalajejolo.pdfIn PDF document text
- https://santaclara.com/wysiwygfiles/file/96072305778.pdfIn PDF document text
- https://geneticapanama.com/userfiles/file/93218996621.pdfIn PDF document text
- https://maftplayer.net/calisma2/files/uploads/dosewetivafinonasokuw.pdfIn PDF document text
- http://cameranichietsu.com/luutru/files/devafifajarozofij.pdfIn PDF document text
- https://cubic.is/userfiles/file/bodoti.pdfIn PDF document text
- http://4seasonstours.in/userfiles/file/7799198686.pdfIn PDF document text
- https://umutfm.com/resimler/files/2090128625.pdfIn PDF document text
- https://amoslodge10.org/ckfinder/userfiles/files/palusixejekolago.pdfIn PDF document text
- http://stardentalcare.org/userfiles/file/pojuxegoweribanazijugu.pdfIn PDF document text
- https://anup.bo/images/files/kavujefimiziruzi.pdfIn PDF document text
- http://kondicionery-dzerzhinskij.ru/upload_picture/file/683114434.pdfIn PDF document text
- http://myphammonly.com/luutru/files/96142614840.pdfIn PDF document text
- https://childrencareandliteracysociety.org/userfiles/files/52900089930.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_off00010b96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B96 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000123ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123AD | 11120 bytes |
SHA-256: 5f3111efd5a31298411f41011812fee1eb00c83b45004e0df6ad0abb9de3139a |
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font_02_sfnt_off00013d62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D62 | 19176 bytes |
SHA-256: d4646def7eb320c80f7536dd858e5bccecd6dd5a485c9810ebf4e4c91ff6f24d |
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