MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the high ML score indicate a malicious intent, likely to redirect users to phishing sites or download further malware. The presence of embedded URLs and the ClamAV detection further support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://drafthe.ru/uplcv?utm_term=what+do+androids+dream+of PDF link annotation
- http://carzip.biz/files/uploads/files/31350519533.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/85851023638.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613831d954bb7---20500379924.pdfIn PDF document text
- http://rafaelokazakov.com/file/72116248582.pdfIn PDF document text
- http://spokoino.ru/i/upload/files/23453610774.pdfIn PDF document text
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/91467413716.pdfIn PDF document text
- http://oecschool.com/userfiles/file/73701428223.pdfIn PDF document text
- http://alconsprom.ru/ckfinder/userfiles/files/vepezikokopakipuke.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/62809478976.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/65207112699.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210912172332.pdfIn PDF document text
- http://ksnjl.com/userfiles/files/91230226061.pdfIn PDF document text
- https://doublehair.center/upload/ckfinder/files/31014149343.pdfIn PDF document text
- http://www.groupementpecheduloir.com/ckfinder/userfiles/files/64755072408.pdfIn PDF document text
- http://ukrkarta.ua/fckeditor/userfiles/file/60887374223.pdfIn PDF document text
- https://erdenet.mn/userfiles/file/79532533730.pdfIn PDF document text
- http://savvyais.com/userfiles/file/wuluzaxadodedi.pdfIn PDF document text
- http://benedictinoselrosal.org/ckfinder/userfiles/files/jinevop.pdfIn PDF document text
- https://eastmanllc.com/ckfinder/userfiles/files/41461971901.pdfIn PDF document text
- http://hoigolfbinhthuan.com/users/files/lutetiwaxo.pdfIn PDF document text
- https://globaldreamindia.com/webcms/file/29483646848.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1613e8ee732b8d---20728172628.pdfIn PDF document text
- http://razzledazzleevents.in/userfiles/file/31916050988.pdfIn PDF document text
- http://izumrud38.com/ckfinder/userfiles/files/83774710277.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_off0000dbc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBC2 | 17544 bytes |
SHA-256: f3bb0c14afa7254b39ba8a7093de080449730dd44351d804ba6a16efb8608e99 |
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font_01_sfnt_off000108d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108D6 | 10564 bytes |
SHA-256: 0835c034ba8fd89222ccba08ceec5020f7b5befc7e42910e8e385bb281327b6e |
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font_02_sfnt_off000120c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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