MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external PDFs hosted on a variety of domains, many of which appear to be disposable or low-reputation. The heuristic 'PDF_RANDOM_URL_LINK' specifically flags a link to a PDF, indicating a likely attempt to redirect the user to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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://porpora.group/imagenes/imagenes_contenidos///49765345193.pdf In PDF document text
- http://protok.pro/upload/files/paxuronewovedurinerev.pdfIn PDF document text
- http://solarexperten.ch/fckeditor/editor/images/file/weronivegudaxojukaxuvu.pdfIn PDF document text
- https://palezieux.com/ckfinder/userfiles/files/lajuwelibefi.pdfIn PDF document text
- http://illinoislivestock.org/userfiles/file/45339318173.pdfIn PDF document text
- https://cbconsulting112.ca/userfiles/files/98143600068.pdfIn PDF document text
- https://rawoctane.com/uploads/file/foxiwozukuzanaxobuvobot.pdfIn PDF document text
- https://everestart.com/images/stories/file/woridaxox.pdfIn PDF document text
- http://adveotec.com/img/file/41582617689.pdfIn PDF document text
- https://ashasuchikala.com/ckfinder/userfiles/files/79371859602.pdfIn PDF document text
- http://giftboxvietthuy.com/upload/ck/files/44763828653.pdfIn PDF document text
- https://zenit-npk.ru/files/file/zagitinigafaxope.pdfIn PDF document text
- http://kowel.com/ckfinder/userfiles/files/1631455231.pdfIn PDF document text
- https://sportyou.fr/ckfinder/userfiles/files/71915099778.pdfIn PDF document text
- http://anquocrealty.com/uploads/image/files/12320716850.pdfIn PDF document text
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/pimeletazurafomivibaridut.pdfIn PDF document text
- http://joesservicecenternj.com/userfiles/files/zovaxoforageded.pdfIn PDF document text
- https://ags-car.60km.com/upload/files/41044707434.pdfIn PDF document text
- http://mt-filtration.com/uploaded/file/948221949613d1b1a152a1.pdfIn PDF document text
- http://licausi.it/userfiles/files/5663003498.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/39565933389.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/96356879147.pdfIn PDF document text
- https://markaoyun.com/calisma2/files/uploads/satikefezizuzomuvasu.pdfIn PDF document text
- http://strahyi.ru/images/file/sovefazigone.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=open+network+stream+vlc+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_off0000df4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF4B | 10944 bytes |
SHA-256: 5390dc69151e5169657074b386cc90f2bef119a6657e10394bdad274d02c1903 |
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font_01_sfnt_off0000f8c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000110d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110D5 | 17504 bytes |
SHA-256: 608a468ed3332e490d7454a481f1c2fa0ac3d83fb5221b85a8dbbaeb4590114e |
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