MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many of which point to suspicious domains and appear to be part of a link farm designed to redirect users. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests a tactic to obscure the final malicious destination. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest it's used as a lure for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 5
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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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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://giadinhlaurenso.org/upload/files/zedutujodinozixoxe.pdf In PDF document text
- http://igabana.com/upfolder/e/files/20210909030001.pdfIn PDF document text
- http://musthighschool.mn/ckfinder/userfiles/files/kevarogibazaxixakuvifim.pdfIn PDF document text
- http://chukgoobok.com/files/fckeditor/file/91778009390.pdfIn PDF document text
- http://apluskleaning.com/admin/images/file/76058082428.pdfIn PDF document text
- http://kastely-vacduka.hu/fileok/file/49732556306.pdfIn PDF document text
- http://allineers.morefriendship.com/upload/files/vaganudi.pdfIn PDF document text
- https://studybrilliant.online/app/webroot/img/userfiles/file/jolusatuwudanilig.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/7030959320.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/dejipisutibigagatev.pdfIn PDF document text
- http://aqs-group.it/userfiles/files/napug.pdfIn PDF document text
- http://aumnat2car.com/ckfinder/core/connector/php/upload/files/27831498117.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137b10d0a9f6---faramoj.pdfIn PDF document text
- http://sm.ac.th/ckfinder/userfiles/files/32411195567.pdfIn PDF document text
- http://se-ty.com/uploads/userfiles/file/fokasebaf.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/hc6q220gdodtm6n7ghctnrr5nh/tubowepavitevej.pdfIn PDF document text
- http://korean-school.hu/hangul/userfiles/file/viwisozu.pdfIn PDF document text
- https://rcvizovice.cz/ckfinder/userfiles/files/48181456481.pdfIn PDF document text
- https://tckontrola.hr/files/pifosunaxajusibanodo.pdfIn PDF document text
- https://ville-saintleonard.fr/pdf/78787008386.pdfIn PDF document text
- https://dcimx.com/files/86544154698.pdfIn PDF document text
- http://vanillasky-ch.com/images/files/55551779783.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=android+find+apk+of+installed+appPDF 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_off0000d878.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD878 | 10564 bytes |
SHA-256: 3192ec3869e251a416d60d8335501e31bc251aec553a096115d889eab3c54cfb |
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font_01_sfnt_off0000f0b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000108c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108C8 | 17268 bytes |
SHA-256: a8e41910cddd1f7e4b938cb2cda2974e0698c81d73e77774e3183d22e5f0d4f8 |
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