MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The presence of a link farm pointing to multiple distinct hosts, some of which appear to be compromised CMS uploads, further indicates a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly support a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9901
Heuristics 7
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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 farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://maintogelonline2.org/contents/files/96276551519.pdf In PDF document text
- https://fsreloading.com/userfiles/files/renoxi.pdfIn PDF document text
- http://addon-colsman.somantec.net/ckfinder/userfiles/files/vewude.pdfIn PDF document text
- https://floridahouselottery.com/test/userfiles/file/lasuvifizinamakaz.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161379311c4949---vulidodewamewi.pdfIn PDF document text
- http://clean-ecology.com/Upload/files/94181773833.pdfIn PDF document text
- https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/32323161359.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5fb558972---34203423318.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131059c2b4d8---53002399856.pdfIn PDF document text
- http://ticketsperiodico.com/galeria/files/konoku.pdfIn PDF document text
- http://dastone.ru/userfiles/file/35434354280.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/161400a63c72a8---83276342520.pdfIn PDF document text
- https://alasclub.gr/neuro/ckfinder/userfiles/files/71696541730.pdfIn PDF document text
- http://eschool365.in/js/admin/uploadfiles/file/tixanabiroxoparilapowom.pdfIn PDF document text
- https://goldgreiner.de/userfiles/file/dimulesemukojazig.pdfIn PDF document text
- http://kaies.net/upfiles/2109051900280051821xw840.pdfIn PDF document text
- https://austarpharma.austarchina.com/upload/files/71695815622.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a36552823dcf39530282387937e237ac/tubojapoferele.pdfIn PDF document text
- http://seteo-dechets.com/images/file/69775354437.pdfIn PDF document text
- https://emenu.hu/editor_up/torodojanokemulilarek.pdfIn PDF document text
- http://goldmustang.ru/files/files/fozavepovovisokijokasali.pdfIn PDF document text
- http://qianlong99.org/ckfinder/userfiles/files/28934006814.pdfIn PDF document text
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/80530668206.pdfIn PDF document text
- http://studiospazioambiente.it/userfiles/files/madejoforetujowajipezuna.pdfIn PDF document text
- http://www.miyadenthai.com/image/upload/File/72016683152.pdfIn PDF document text
- http://skonasystems.com/userfiles/file/23566423521.pdfIn PDF document text
- https://kuzeyilac.com/resimler/files/19001040778.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+recover+deleted+photos+from+android+mobilePDF 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_off0000c791.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC791 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dfa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFA8 | 11168 bytes |
SHA-256: 4da557a80190350719899b7c920beaa81ca13660ea6b3bd30d0bd096645394a7 |
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font_02_sfnt_off0000f956.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF956 | 17236 bytes |
SHA-256: 8e01e709da7a8f0282043c45a9f2be86312c7a537fdece765e30fe57998cf41c |
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