MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to execute code and redirect the user. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of a 'download button' lure suggest a malicious workflow aimed at tricking the user into downloading a payload. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://sinching.com/uploadpic/files/202109130627533003.pdf In PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/27oldjknqgimg31tuuf4m7uvg7/pobizuwit.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/51987479453.pdfIn PDF document text
- http://indianmailbox.com/assets/images/userfiles/files/diromofebirapeb.pdfIn PDF document text
- https://warsztatgdynia.pl/app/webroot/media/files/65187323830.pdfIn PDF document text
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c21cdff28---58954841210.pdfIn PDF document text
- https://shreenathtechnologies.com/userfiles/file/raxexifoxexiturifutub.pdfIn PDF document text
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/mosafopo.pdfIn PDF document text
- https://chinese-wall.tw/upload/files/60141271077.pdfIn PDF document text
- http://xibuhuanyu.com/filespath/files/20210903040328.pdfIn PDF document text
- http://vizit-k.net/uploads/editor/files/64283570225.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/22124405652.pdfIn PDF document text
- http://dh-cell.net/ckfinder/userfiles/files/sizosiwezap.pdfIn PDF document text
- http://x-mobio.com/upload/files/walinevis.pdfIn PDF document text
- https://gamma-electronics-eg.com/userfiles/files/vamavolobafopunebujate.pdfIn PDF document text
- http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/62000389080.pdfIn PDF document text
- https://ausztriasi.spawellness.hu/upload/hirlevel/files/mesotoxovolanemumijemobid.pdfIn PDF document text
- http://vmkmsz.hu/userfiles/file/31667618939.pdfIn PDF document text
- http://iseveranscopy.com/upload/editor/file/59457609866.pdfIn PDF document text
- http://e-menu.hu/editor_up/93994520930.pdfIn PDF document text
- https://dpengineers.info/admin/userfiles/file/92719751981.pdfIn PDF document text
- http://nfrostov.ru/upload/files/82840915295.pdfIn PDF document text
- https://dadrarad.ro/userfiles/file/31800374341.pdfIn PDF document text
- http://koreaticketland.com/userfile/file/79003162001.pdfIn PDF document text
- https://restavracia02.com/userfiles/file/14318220060.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=tube+video+downloader+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_off0000d882.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD882 | 18956 bytes |
SHA-256: 987337d9e5888796bb5266dd7f94c0d25d0c00c83b43f27f87965aaaa507dca8 |
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font_01_sfnt_off0001090f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1090F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12126 | 10564 bytes |
SHA-256: 597327ff9b34b2690afc0b45b298518a5780a165d66d6dea7653130985dcc724 |
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