MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristic firings indicating malicious intent, including random URL links and being part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly suggest maliciousness. The embedded links likely serve to redirect the user to download additional malicious files, a common tactic for phishing and malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 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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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://giovanniseneca.eu/userfiles/files/41446915982.pdf In PDF document text
- http://bfcy88.com/uploads/files/4217380369.pdfIn PDF document text
- https://ispartaprefabrik.com/ckfinder/upload/files/rujezunudazezabigevoju.pdfIn PDF document text
- http://abyss.sk/userfiles/file/jubonupukufopeji.pdfIn PDF document text
- http://ambulatorioveterinariosanfrancesco.com/userfiles/files/xifeme.pdfIn PDF document text
- https://jackyrouxmethode.com/userfiles/file/96718185571.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/b26422a442998bfbb3217743b1295aa6/sunumujovorapew.pdfIn PDF document text
- http://gsxr.hu/userfiles/file/lusara.pdfIn PDF document text
- http://notar-frings.de/userfiles/file/94853921833.pdfIn PDF document text
- http://sonsuadogo.org/Images_upload/files/50958437998.pdfIn PDF document text
- http://mfahk.com/upload/files/nolomovuloruzim.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16134868bd5751---36139432663.pdfIn PDF document text
- http://starroadchina.com/userfiles/file/93471851036.pdfIn PDF document text
- https://ccaquebec.com/userupload/files/34328810040.pdfIn PDF document text
- http://ledseoul.com/userData/board/file/xidefewawa.pdfIn PDF document text
- https://priscar.com/documents/files/sasadapi.pdfIn PDF document text
- http://kasargod.net/uploads/file/31575196212.pdfIn PDF document text
- http://prttour.ca/FileData/ckfinder/files/20210923_BCBAE64BCFB817FA.pdfIn PDF document text
- http://ecovn.vn/uploads/news_file/34304465406.pdfIn PDF document text
- https://www.mds-horizons.com/upload/files/63903317634.pdfIn PDF document text
- https://mimpishio1bet.net/contents/files/39364402643.pdfIn PDF document text
- http://sgrdinstitutionspandher.org/sgrd/userfiles/file/nonanurafabekivarapit.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-22/20210922034531813374.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+merge+2+videos+in+androidPDF 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_off0000d365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD365 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB77 | 16704 bytes |
SHA-256: 5d2b870da9c45a22eff4e1125e4aa8508cedfd58d75ec83ecc51700685301b76 |
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font_02_sfnt_off000116cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116CB | 10808 bytes |
SHA-256: 92481ad64a92b6c615e028e5567a9fbc8b3ba84c1c342fe47cdf53f42096d3b6 |
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