MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded JavaScript stream and a large number of external URIs, many of which point to disposable domains or link farms, suggesting a phishing or malware distribution campaign. The primary attack pattern involves luring users to these external sites, likely to harvest credentials or deliver further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://inwebjor.ru/uplcv?utm_term=s21%2B+vs+iphone+12 PDF link annotation
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/466b3203dbc6bae8edfd8128fb1fa3fe/65079199835.pdfIn PDF document text
- http://hladonural.ru/upload_picture/14421523649.pdfIn PDF document text
- http://myredm.ru/uploads/file/298585211.pdfIn PDF document text
- http://swiftnb.com/ckfinder/userfiles/files/kewesusojuwikekavelor.pdfIn PDF document text
- http://szerecsengyogyszertar.hu/editor_up/davari.pdfIn PDF document text
- http://tjtvina.com/Upload/files/texusazuxogakamisenejuw.pdfIn PDF document text
- http://medtravel.pro/images/hand_uploaded/files/4427045629.pdfIn PDF document text
- http://lammermoor.net/imagenes/file/xabal.pdfIn PDF document text
- https://remont-bez-zabot.ru/files/file/lawuwigozoxuxuxawal.pdfIn PDF document text
- http://cjmfgx.morefriendship.com/upload/files/deganun.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1613a674a28c3a---19922819637.pdfIn PDF document text
- https://lifesmart.lifesmart.ro/ckfinder/userfiles/files/30783574165.pdfIn PDF document text
- http://nagakuratrading.com/js/upload/files/93504168174.pdfIn PDF document text
- https://kingdom.vn/userfiles/file/demawezelowelek.pdfIn PDF document text
- https://needletherapy.eu/upload/file/tiwimemirupeduwoxotew.pdfIn PDF document text
- http://anadolumatbaa42.com/genelresimler/file/74689989815.pdfIn PDF document text
- http://www.photonics-science.com/ckfinder/userfiles/files/38159154138.pdfIn PDF document text
- http://pietroquatriniarchitetto.eu/userfiles/files/96377100358.pdfIn PDF document text
- http://asfalon.com/__files/file/32806471067.pdfIn PDF document text
- http://dotykbylinky.sk/_subory/subory/68602841961.pdfIn PDF document text
- http://vanillasky-ch.com/images/files/38763681926.pdfIn PDF document text
- http://clinicaveterinariailmarzocco.it/userfiles/files/bipilapepazefaleforopit.pdfIn PDF document text
- http://wx-bm.cn/upload/ckimg/files/202109100410481767.pdfIn PDF document text
- https://menuiserie-sainte-anne.fr/userfiles/file/35988133132.pdfIn PDF document text
- https://kede.org/userfiles/file/36739804211.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_off0000e6ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6AD | 10256 bytes |
SHA-256: aefe56d067604c71b3e95fec76129fc00a1cc9cae685da5e15b9ce0a90da628f |
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font_01_sfnt_off0000fdb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB6 | 20200 bytes |
SHA-256: dd9c37a47fc017be8d9dd5169e8ecccfb926582b6667408f02b08250e59c845b |
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font_02_sfnt_off000133cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133CB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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