MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple external links, with one identified as a randomly generated URL likely leading to a malicious payload. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is structured as a link farm on disposable hosting, further suggesting malicious intent. ClamAV detection and ML classification confirm its malicious nature, likely serving as a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://sameiroeventos.pt/ficheiros/186941453.pdf In PDF document text
- http://architettogherardi.eu/userfiles/files/68124931569.pdfIn PDF document text
- http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/luxewiraki.pdfIn PDF document text
- https://rsvforum.com/userfiles/file/96117369760.pdfIn PDF document text
- http://sanarina-coaching.de/ckfinder/userfiles/files/kasotufakirisujejale.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/97629542974.pdfIn PDF document text
- http://ros-grad.ru/fck_editor_files/files/22000430016.pdfIn PDF document text
- http://klinok-saintp.ru/files/sifuvefixutiwizufoxu.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/mafekuwija.pdfIn PDF document text
- https://weekendtripskolkata.com/userfiles/file/suzevegesupimugotubawano.pdfIn PDF document text
- https://nodka.eu/ckeditor/ckfinder/userfiles/files/77324272983.pdfIn PDF document text
- http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/50948836810.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161482b769fe2b---38035595867.pdfIn PDF document text
- http://vpsystem.com/files/fck/jevobibutalil.pdfIn PDF document text
- http://elfast.ru/userfiles/file/13212718901.pdfIn PDF document text
- http://kramor.bg/userfiles/file/fugimorefopatoxenepila.pdfIn PDF document text
- http://highlevel.pl/userfiles/file/vojigibe.pdfIn PDF document text
- http://robvancampen.nl/userfiles/file/xizavaxubaxixukufadela.pdfIn PDF document text
- http://cnhhgj.com/upfiles/userfiles/file/33068539234.pdfIn PDF document text
- http://bluebirdcanada.com/FileData/ckfinder/files/20210912_6C9B6C7A509FB2B8.pdfIn PDF document text
- https://jmclimatizacionhvac.cl/images/subidas/file/pasudagaxupep.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16146357bac13f---7711294887.pdfIn PDF document text
- http://cerritos.songhakbbq.com/uploads/files/fajozafifilosavorinop.pdfIn PDF document text
- http://highendschmiede.de/highendfiles/file/45618168649.pdfIn PDF document text
- http://italiangreyhound.pl/img1/userfiles/file/60199374750.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=the+sims+freeplay+cheats+unlimited+money+2021PDF 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_off0000b172.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB172 | 11356 bytes |
SHA-256: 4d73ca848f6c688b9452139e6f6d2683f83049c6ba50cf1131bf91f27a7138dd |
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font_01_sfnt_off0000cc17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC17 | 15568 bytes |
SHA-256: fa8f1b8222c49129ea5052627afb38be12912c1dc459c356812edd046546ced5 |
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font_02_sfnt_off0000f3af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3AF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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