MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it's a link farm on disposable hosting. The PDF contains numerous embedded URLs, many of which are likely part of a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to malicious sites, likely as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
Heuristics 5
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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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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://queure.ru/uplcv?utm_term=introduction+to+word+problems PDF link annotation
- http://theclelandgroup.com/img/upload/file/vewutigeminupex.pdfIn PDF document text
- https://webmanagement.jbclub.ro/images/file/52078225319.pdfIn PDF document text
- http://yas-center.ru/userfiles/file/kamenolutimilanufofede.pdfIn PDF document text
- https://floraplant.gr/FCKeditor/userimages/file/ginanetodijizukatafivur.pdfIn PDF document text
- https://melnikhouse.com/userfiles/file/86849267710.pdfIn PDF document text
- http://lica-mpt.it/userfiles/files/86841790869.pdfIn PDF document text
- http://www.cavice.fi/tiedostot/files/ziralusakofewolujom.pdfIn PDF document text
- http://haraj-alqunfudhah.com/userfiles/file/5990481141.pdfIn PDF document text
- http://printific.com/images/contentimages/files/80011847273.pdfIn PDF document text
- http://damvua.com/damvua/public/images/files/gomexipinekutesusujumupu.pdfIn PDF document text
- http://boki.hu/editor_up/mixazederapaburo.pdfIn PDF document text
- https://isigakizima.net/img/tmp/file/nonavelusimokitegegome.pdfIn PDF document text
- http://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/milodokorexiduf.pdfIn PDF document text
- https://maintogelonline2.org/contents/files/bijaburetonifigobamej.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/69417267271.pdfIn PDF document text
- http://sksound.com/userfiles/file/dejeselopamadonokuremalaz.pdfIn PDF document text
- http://ilkemymm.com/image/files/35301205396.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-10-12/20211012192106253308.pdfIn PDF document text
- https://yucekalipmakina.com/tsrm1/img/userfiles/file/42474620405.pdfIn PDF document text
- http://e3edu.vn/public/ckfinder/core/connector/php/connector.phppublic/uploadsfiles/temifitesipozalegapolate.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/fuguresekajum.pdfIn PDF document text
- http://ud2-140.com/files/97162096569.pdfIn PDF document text
- http://dvif.fr/userfiles/file/86530781385.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f39b58e3e8---bojokamejurujukusisanup.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/1km3dlvbqn74iic2og9afj7ajs/lebodenuvesixugiwub.pdfIn PDF document text
- http://symbioticlifetech.org/attfile/fckimg/file///2021091523714_259125770.pdfIn PDF document text
- http://integrotech.pl/zdjecia/file/93266273547.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_off0000c184.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC184 | 10792 bytes |
SHA-256: 92313c75774e057b946d7f53b8f7c7c664606806c0646a47758d52a196e14d69 |
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font_01_sfnt_off0000da31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA31 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f243.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF243 | 16124 bytes |
SHA-256: 2f9292e736773f0d7673dfd18acc7fa06c16038c79e4779a87915f1b7d9da17e |
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