MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains embedded JavaScript and presents as an image-only document designed to trick users into clicking a link, likely to download a secondary payload or redirect to a credential harvesting site. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further suggests a network of disposable domains used for malicious distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=sign+pdf+on+ubuntu PDF link annotation
- https://tjp2-hotlink-j3t.com/contents/files/ragodebog.pdfIn PDF document text
- https://remont-bez-zabot.ru/files/file/42389153437.pdfIn PDF document text
- http://swotaweb.com/img/upload/file/67475604933.pdfIn PDF document text
- http://ghinelliarchitettura.it/userfiles/files/88819490507.pdfIn PDF document text
- https://activepymes.com/pub/file/75253272084.pdfIn PDF document text
- http://gpp300.fr/userfiles/file/80332929759.pdfIn PDF document text
- https://mimpishio1bet.net/contents/files/81475481598.pdfIn PDF document text
- http://hightopeducation.com/cms_uploaded/file/67069181827.pdfIn PDF document text
- http://drtamerturan.com/file/71687538669.pdfIn PDF document text
- http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/kukatatolavonag.pdfIn PDF document text
- http://quangcaosmsgiare.com/media/ftp/file/zebazijonowi.pdfIn PDF document text
- https://abss.pt/userfiles/file/25674597065.pdfIn PDF document text
- https://powermailer.in/userfiles/file/milanoxav.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139217abb431---81564899914.pdfIn PDF document text
- https://volgogradexpo.ru/ckfinder/userfiles/files/nofamegitudo.pdfIn PDF document text
- http://vina2002.com/uploads/files/xokedomomibigubenuvewum.pdfIn PDF document text
- http://studiosiciliani.eu/userfiles/files/zisuzolow.pdfIn PDF document text
- http://hodoan.net/userfiles/file/bitevixozojuvugamapaz.pdfIn PDF document text
- https://businessincasey.com.au/application/third_party/ckfinder/userfiles/files/14734247697.pdfIn PDF document text
- http://3xlove.com/uploadfile/file/54009879226.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021090708545973499.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0tfdkcmrsoeuthnv500ipc9ij0/99368636658.pdfIn PDF document text
- http://hutbephottaihaiphong24h.com/upload/files/jukakofojuwipi.pdfIn PDF document text
- http://helder-effect.nl/userfiles/file/35301075599.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_off0000af78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF78 | 14184 bytes |
SHA-256: 0e035782a7894e460af521df1c7470eda46d93b2e9c904a3d73b13c00e8a764f |
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font_01_sfnt_off0000d289.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD289 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eaa0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAA0 | 10380 bytes |
SHA-256: 6735f873f39a0f8e08bc15e76e6e01d483bdc59e3b21ba071ad4b559190ecaa8 |
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