MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URLs, including one identified as a link farm on disposable hosting, suggests a phishing or credential harvesting campaign. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the attack pattern of luring users to click on links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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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 https://chcial.ru/uplcv?utm_term=how+to+send+large+files+on+facebook+messenger PDF link annotation
- http://186086.com/upload/files/4959653448.pdfIn PDF document text
- http://topoint.cc/userfiles/fckFile/20210903152053.pdfIn PDF document text
- https://saglamahsapkutu.com/img/editor/image/file/gobodifataxolikuniwomu.pdfIn PDF document text
- http://ecohouse-lab.com/userfiles/file/xonaguf.pdfIn PDF document text
- http://carrozzeriabosini.net/userfiles/files/dikepafibineladopoxedo.pdfIn PDF document text
- http://ttmm.co.jp/ckfinder/userfiles/files/4282773879.pdfIn PDF document text
- https://bosgo.mn/uploads/files/potibijeb.pdfIn PDF document text
- http://gtlitalia.com/userfiles/files/77942348941.pdfIn PDF document text
- https://xuantruongtech.com/images/ckeditor/files/5459125192.pdfIn PDF document text
- http://kleinschaden-expert.de/userfiles/file/zefakawebiguxalebaleg.pdfIn PDF document text
- https://get-insurance.in/ckfinder/userfiles/files/98291812745.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/58425994104.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136e77a5ef31---visizokuturokuv.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/12597075841.pdfIn PDF document text
- http://gnatowski.pl/attachments/file/69358302756.pdfIn PDF document text
- https://encoyun.com/calisma2/files/uploads/raluwukedovepigobapotas.pdfIn PDF document text
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/db189dfbda11adc0e515d7b4e6d4b3b1/65456582786.pdfIn PDF document text
- http://xn--38-mlcqjbufcz6h.xn--p1ai/userfiles/file/28042958258.pdfIn PDF document text
- http://mayepnuocmia.vn/data/ckfinder/files/werojer.pdfIn PDF document text
- http://bzws.zhanyougame.com/ckfinder/userfiles/files/18792427862.pdfIn PDF document text
- https://itracmediav5.com/ckfinder/userfiles/files/jobemivam.pdfIn PDF document text
- http://thuexedanang247.com/uploads/image/files/40922853488.pdfIn PDF document text
- http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/kezawosusazekuwinejunap.pdfIn PDF document text
- https://aymexco.eu/ckfinder/userfiles/files/fibomiremazigunanola.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_off0000d3fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3FC | 11128 bytes |
SHA-256: 607d37d6da64b19f0f6985d620ed9367a175751e01bfec12df07cc877c925848 |
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font_01_sfnt_off0000edc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC7 | 17924 bytes |
SHA-256: eb9e9c8dae9ec54b6b4427d55332d2b80fb9e8cbb07bf56ed2ff21ddea638636 |
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font_02_sfnt_off00011baf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BAF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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