MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to execute malicious code or redirect users to malicious sites. The presence of a link farm pointing to multiple distinct hosts, including one on a compromised CMS upload, further indicates a phishing or malicious redirection scheme. ClamAV detection as 'Pdf.Phishing.Trojan' supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://bimbrlata.cz/UserFiles/File/fukasajinijivijikejaxip.pdf In PDF document text
- http://www.hausman.eu/images/wyswig_images/file/19868046268.pdfIn PDF document text
- http://caythuocdangian.net/images/files/regafuvujixilogona.pdfIn PDF document text
- http://carscaso.com/js/upload/files/lunuxama.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161415e161ddb9---41937408580.pdfIn PDF document text
- https://predial-rua-nova.pt/056-CovadaLua/images-editor/file/47313684880.pdfIn PDF document text
- https://sunkamalzemecilik.com/userfiles/file/nexukunatuxevajogaxo.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9dd7cf9c3---zazepozuximiwera.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/64357913520.pdfIn PDF document text
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/a82de29d139fee502179c0e280ef3079/busezupaxuper.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/73904484730.pdfIn PDF document text
- http://lammensfilip.be/uploads/files/majasofapojisilefojil.pdfIn PDF document text
- http://studiochiodo.eu/userfiles/files/lemotagudolabiserolip.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109141412271765.pdfIn PDF document text
- http://reliancefla.com/admin/images/file/sapek.pdfIn PDF document text
- http://entryexpress.online/chapter_images/files/58891318346.pdfIn PDF document text
- https://kcss.hu/korosi/userfiles/file/39741955909.pdfIn PDF document text
- http://lexen.ca/userfiles/files/fanofawi.pdfIn PDF document text
- http://farmandari-sarvestan.ir/images/news/files/guginuboj.pdfIn PDF document text
- http://stolizstekla.ru/userfiles/file/45169548913.pdfIn PDF document text
- http://www.photonics-science.com/ckfinder/userfiles/files/23804711617.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=deer+shield+vpn+apkPDF 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_off0000aca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACA3 | 16940 bytes |
SHA-256: be7b553bbab56423f51ce379a60b0fbaa17fc5922668a12ae27d5835ba243f4a |
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font_01_sfnt_off0000d772.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD772 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ef89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF89 | 10428 bytes |
SHA-256: 718e105500371248b9fa9fa7fe3c798a1512b568967ef9d3230dba6942a98444 |
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