MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains a high number of embedded URLs pointing to disposable hosting, indicating a link farm designed to trick users into downloading further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a phishing or malware distribution attempt.
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 http://yasaitogo.com/uploads/files/42135402016.pdf In PDF document text
- https://auto826.vnpec.xyz/uploads/files/15395716779.pdfIn PDF document text
- http://change4best.ru/upload/file/muzanepakasejopaperedu.pdfIn PDF document text
- https://iwanbim.iwan.co/userfiles/files/poboxukibijanowu.pdfIn PDF document text
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/80765998687.pdfIn PDF document text
- http://apismorava.eu/docs/9899549897.pdfIn PDF document text
- http://tetobox-budapest.hu/uploads/files/netajodipeku.pdfIn PDF document text
- http://fu-xin.tw/uploads/files/202109080522497762.pdfIn PDF document text
- https://cecprint.com/images/file/83318671431.pdfIn PDF document text
- https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/29003046051.pdfIn PDF document text
- http://www.cddfct.com/up_files/file/soxakiralamaku.pdfIn PDF document text
- http://oipipleszno.pl/userfiles/file/75037266561.pdfIn PDF document text
- https://stw-nowogard.pl/download/file/xavikizilivufubekutujuvu.pdfIn PDF document text
- http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/gikivevaz.pdfIn PDF document text
- http://rucodelniza.ru/userfiles/file/xivij.pdfIn PDF document text
- https://kratky.eu/files/file/mimirepoguzog.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/70392338207.pdfIn PDF document text
- http://nenkin-t.com/upload_img/ck/files/95995822736.pdfIn PDF document text
- http://archpiudue.com/userfiles/files/62326651113.pdfIn PDF document text
- http://onroerendgoedindex.nl/images/uploads/kifikix.pdfIn PDF document text
- https://monyetjoget.com/contents/files/44672303073.pdfIn PDF document text
- http://farmaciafasolis.eu/userfiles/files/77302928769.pdfIn PDF document text
- http://di-tech.kr/fckeditor/userfiles/file/xaxojak.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=message+recovery+software+for+androidPDF 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_off0000bf5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF5A | 17260 bytes |
SHA-256: 5e6d89e4d90c7db8e0e086e147d09bf1b8a44931c4f60b5cdbf84aaf2b8c5dc5 |
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font_01_sfnt_off0000eb39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB39 | 10864 bytes |
SHA-256: 5fb796e33dd89181dfca29aa1bd4fa1505f98e4899c2015ca7850ba235dd5edb |
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font_02_sfnt_off00010463.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10463 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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