MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs, many of which are hosted on disposable domains and utilize UTM parameters, suggesting a link farm or phishing lure. The PDF structure itself, combined with the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM', points towards a campaign distributing malicious links rather than a direct exploit.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 https://philabc.ru/uplcv?utm_term=world+record+weakfish PDF link annotation
- https://bk.knu.ac.kr/ckfinder/userfiles/files/sudiwakonixojupo.pdfIn PDF document text
- http://satisfytech.com/ck/upload/files/70838995566.pdfIn PDF document text
- https://amityhr.com/userfiles/file/letazaresibekulewopafuta.pdfIn PDF document text
- https://ingatlanfelugyelet.hu/uploads/file/mazajewarovivasaw.pdfIn PDF document text
- http://alessandrobelleseveterinario.eu/userfiles/files/zanonup.pdfIn PDF document text
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/ac5a75076ca35bda8628e702d2c05b6e/jujoxunowotoja.pdfIn PDF document text
- https://aartipalette.com/userfiles/file/ridegulirogafalopegesaf.pdfIn PDF document text
- https://mobile-translator.eu/app/webroot/media/files/parebagadasumolapokudov.pdfIn PDF document text
- https://ytdrive.com/CKEdit/upload/files/mogipidemepo.pdfIn PDF document text
- https://www.adoz.cz/ckfinder/userfiles/files/14233098327.pdfIn PDF document text
- https://testgit.begurholidays.com/uploads/userfiles/files/27676111113.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/53322546414.pdfIn PDF document text
- http://nfc-lampang.com/user_img/files/moloku.pdfIn PDF document text
- http://hoanhaochemical.com/uploads/files/460938457.pdfIn PDF document text
- https://deltagroup.bg/uploads/file/3316128294.pdfIn PDF document text
- https://sanaspinler.com/calisma2/files/uploads/vetegujepigabeg.pdfIn PDF document text
- http://galantemontagnana.it/ckfinder/userfiles/files/jinaj.pdfIn PDF document text
- http://wami.cc/data/files/62438507906.pdfIn PDF document text
- https://ksmt.edu.np/assets/ckfinder/userfiles/files/18212919836.pdfIn PDF document text
- http://abwingssuffolk2.com/uploads/files/76092587368.pdfIn PDF document text
- http://keystoparadise.com/userfiles/files/99740869475.pdfIn PDF document text
- https://fullgame.hu/uploads/files/wusuxelosipusukokimafawi.pdfIn PDF document text
- http://image.dlib.vn/libedu/news/bvu/20210920/file/40786895858.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161483536b43d0---64924671145.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/kusapetitivuguzil.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_off0000c483.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC483 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dc95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC95 | 17632 bytes |
SHA-256: 540b8916ef6a553e3cf183340d9a524c8450fcbde5ed77e50c5b33047ea01ab9 |
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font_02_sfnt_off00010a40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A40 | 10544 bytes |
SHA-256: 9ea47a9e25bfc970892a45141fd71e32df3d85a9492cc9ce6c23d82c99c07bea |
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