MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external resources, many of which are hosted on disposable domains and appear to be part of a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely a phishing or trojan delivery mechanism. The presence of embedded URLs and the 'PDF_RANDOM_URL_LINK' heuristic further support this, suggesting the document is a lure to download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/c8a5febb37209bbddb05e3c5c229bfea/kotal.pdf In PDF document text
- http://www.euro-fly.eu/userfiles/files/gabosemelebavojijenes.pdfIn PDF document text
- http://aurora-c.jp/files/files/44875458858.pdfIn PDF document text
- http://ct-tci.com/cttax/userfiles/files/16004321485.pdfIn PDF document text
- https://habibitours.net/ckfinder/userfiles/files/7460655144.pdfIn PDF document text
- http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/37775743847.pdfIn PDF document text
- http://aotwcasino.com/ckfinder/userfiles/files/patasixalukovi.pdfIn PDF document text
- https://childrencareandliteracysociety.org/userfiles/files/fodazemawafigoko.pdfIn PDF document text
- http://gocep.org/data/userfiles/files/legolomodatani.pdfIn PDF document text
- http://teakdeck.pl/files/file/76657750927.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb8bcaeef6---tatabegemadubovo.pdfIn PDF document text
- https://badoza.net/userfiles/file/43947420301.pdfIn PDF document text
- http://355353.ru/userfiles/file/nipedavoxazuwoxi.pdfIn PDF document text
- http://fotocaroli.it/userfiles/files/sufinevixinof.pdfIn PDF document text
- http://onyx-innovations.com/assets/ckfinder/userfiles/files/13541488630.pdfIn PDF document text
- http://brlairport.com/images/file/gilonaxifekagevijepekise.pdfIn PDF document text
- http://xinghui.co/upload/ckimg/files/202109132148018772.pdfIn PDF document text
- https://akemi.ro/hirek/file/62118852493.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/tujowizatilosa.pdfIn PDF document text
- http://cnpair.com/userfiles/file/5322797855.pdfIn PDF document text
- http://kubak-ubezpieczenia.pl/userfiles/file/96038661255.pdfIn PDF document text
- https://samsungklimamodelleri.com/upload/ckfinder/files/35415824648.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=dragon+ball+z+shin+budokai+3+ppsspp+highly+compressedPDF 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_off0000d885.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD885 | 18172 bytes |
SHA-256: 21dfbd7bbf0359da65bc12357606eefaae21f4fba4c685e3cb90fada62a8d3ab |
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font_01_sfnt_off0001079c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079C | 11540 bytes |
SHA-256: 8b3566daf2fda0c8f5c3661ef47f85e0d82b448e5f4f9e5e837c74cbe4da673e |
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font_02_sfnt_off0001226b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1226B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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