MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs pointing to a link farm, suggesting a phishing or malware distribution scheme. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting for these links. No scripts were extracted, but the structure and URL patterns are indicative of a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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://hongmao.tw/uploads/files/202109061216524063.pdf In PDF document text
- http://gutachterbewertung.de/userfiles/file/47768330913.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614146aee0962---guzuwojudog.pdfIn PDF document text
- http://isystemlab.com/admin/ckfinder/userfiles/files/bujusutubul.pdfIn PDF document text
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/buzolojiposiwesu.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613172b16cc6c---datisevibupirikolev.pdfIn PDF document text
- http://deborahkay.com/ckfinder/userfiles/files/suwagimiguronukux.pdfIn PDF document text
- http://engcaphone.com/_UploadFile/Images/file/7689443067.pdfIn PDF document text
- http://760_709737661.mildmedia-dev.eu/uploads/userfiles/files/93854952959.pdfIn PDF document text
- http://box8websites.com/ckfinder/userfiles/files/xaseramugofodapiw.pdfIn PDF document text
- https://bengalroys.com/ckfinder/userfiles/files/wunukoridakut.pdfIn PDF document text
- http://matrix-corporation.com/upfiles/editor/files/16231912740.pdfIn PDF document text
- http://minerva-collection.net/files/files/33159804670.pdfIn PDF document text
- https://sibois.eu/userfiles/file/mumizeger.pdfIn PDF document text
- http://myhomeinparis.com/userfiles/files/xuxat.pdfIn PDF document text
- http://studiotecnicomartani.eu/userfiles/files/38953565539.pdfIn PDF document text
- https://reklama71.ru/upload_picture/21181484006.pdfIn PDF document text
- http://cassotech.nl/site/data/ws/files/fasikemereja.pdfIn PDF document text
- http://twtipa.com/upfile/files/2021/09/10/jatosuka.pdfIn PDF document text
- https://adian.eus/files/galeria/files/70448034790.pdfIn PDF document text
- https://hram-uspeniya.ru/ckfinder/userfiles/files/namemuluxerakatagubegoz.pdfIn PDF document text
- http://baodieptailor.com/uploads/2021-09-12/images/files/18356213752.pdfIn PDF document text
- http://www.pro9apps.com/app/webroot/files/uploadimagesfile/gomug.pdfIn PDF document text
- http://jwconsult2005.com/file_media/file_image/file/maxaxub.pdfIn PDF document text
- http://fanghsin.com/uploads/files/202109161006492274.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=screen+share+android+phone+to+macPDF 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_off0000e427.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE427 | 17916 bytes |
SHA-256: 71000234c7630561f055a5c34c818fc7cbaa966e901a468ab2aa6d3893def7db |
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font_01_sfnt_off00011318.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11318 | 10808 bytes |
SHA-256: de03b47326860f41f66cc1430df8462620fb8f32356ff926b35350124b88b5f8 |
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font_02_sfnt_off00012bc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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