MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The presence of numerous external URLs, many hosted on disposable domains and configured with UTM parameters, strongly suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection further confirm the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=friends+last+episode+full PDF link annotation
- https://minervatech.work/js/ckfinder/userfiles/files/rulezuwudajitawi.pdfIn PDF document text
- http://neoclassicalmansions.com/uplds/file/wiwopinogefisudewoxomik.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/wifavageg.pdfIn PDF document text
- https://debo-fit.be/userfiles/file///51219425385.pdfIn PDF document text
- http://gt-outillages.fr/ressource/site-image/files/59015971118.pdfIn PDF document text
- http://atek-ent.com/upload/file/27054464366.pdfIn PDF document text
- http://riggi.ru/userfiles/file/37110067990.pdfIn PDF document text
- http://cn-biyoute.com/d/files/zedojefuxedunejop.pdfIn PDF document text
- http://gmei.lt/ckfinder/userfiles/files/pefiwin.pdfIn PDF document text
- http://antichigelsi.it/userfiles/files/fiferuwububu.pdfIn PDF document text
- http://mothertheresapublicschool.com/userfiles/file/63597333464.pdfIn PDF document text
- https://aayams.com/userfiles/file/virutiginajeragigabaz.pdfIn PDF document text
- https://takipbizde.com/calisma2/files/uploads/25222464821.pdfIn PDF document text
- https://nusamulticentralestari.com/Uploads/userfiles/files/misawulojop.pdfIn PDF document text
- http://huijingweb.com/upload_fck/file/2021-9-21/20210921053643677853.pdfIn PDF document text
- https://rcvizovice.cz/ckfinder/userfiles/files/30161852714.pdfIn PDF document text
- http://evaemlak.com/userfiles/file///48848552710.pdfIn PDF document text
- http://uro-medical.pl/zdjecia/fotki/file/miwibotoleposa.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/57msve7qlplp7tjnp52fjs0ptv/zidaborawibisomuvesedu.pdfIn PDF document text
- http://benedictinoselrosal.org/ckfinder/userfiles/files/junibubuxivajod.pdfIn PDF document text
- http://harrodsrentacar.com/public_html/userfiles/file/85057885455.pdfIn PDF document text
- https://cliniquemyo.com/userfiles/file/24250750572.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/uro3imkiaahd1k5sa0ve24jnui/vexesafavemukofoduku.pdfIn PDF document text
- http://trevelsi.ru/ckfinder/userfiles/files/simelexifesadaturekani.pdfIn PDF document text
- http://dpkwi.org/userfiles/files/daserogilazobokekinafos.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_off0000b94d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB94D | 10568 bytes |
SHA-256: 5b637adacc6f0c5fa862e8dd1668946c3a751e09d579ab21c4883d2a06a344fd |
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font_01_sfnt_off0000d17c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD17C | 16460 bytes |
SHA-256: 2261cf6333097cd6c946b12fae2691e3c64d9f5f4c26d4d151cbfe6193fe1c46 |
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font_02_sfnt_off0000fbd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBD4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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