MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains numerous external URIs pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating a tactic to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 5
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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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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://wastran.ru/uplcv?utm_term=bully+download+apk PDF link annotation
- http://expertworker.paraleumarian.ro/app/webroot/files/userfiles/files/80030436511.pdfIn PDF document text
- https://hahapediatric.com/uploads/files/202109030334172244.pdfIn PDF document text
- http://lamexmarket.com/uploads/files/panuk.pdfIn PDF document text
- http://liluby.com/upload/file/56300790353.pdfIn PDF document text
- https://dzido.pl/userfiles/file/posetopixokefuxidix.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/26239841946.pdfIn PDF document text
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/fenamixafakolikuminapurun.pdfIn PDF document text
- http://tks-forever.com/upload/2021/09/28/file/goxibuwetura.pdfIn PDF document text
- https://ferropula.hr/files/10311781453.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/86407170829.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/lelizob.pdfIn PDF document text
- https://tapuionoticias.com/ckfinder/files/20986544729.pdfIn PDF document text
- http://saaretravel.ee/images/file/wigijexudelefegub.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/34998935910.pdfIn PDF document text
- http://autokolcsonzoszolnok.hu/admin/fck_upload/file/18079646559.pdfIn PDF document text
- https://tsydesign.com/userfiles/jws/files/kekonediwup.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140e86082ab4---94968830249.pdfIn PDF document text
- http://fpole.ru/sadm_files/belopusuwuw.pdfIn PDF document text
- http://www.ez4parcel.net/upfile/files/2021/09/16/24372268843.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138101a0c440---welatikagakuxanatisex.pdfIn PDF document text
- http://cloudinfo01.smartevolve.com/images/ckeditor/files/81895027605.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/lejekokiforoneseza.pdfIn PDF document text
- https://tsegypt.com/file/sejutaronukid.pdfIn PDF document text
- https://butchercurnow.com/img/shop/contents/7885746701.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_off0000afd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFD1 | 10240 bytes |
SHA-256: 7f4e1f6589c7f8e8f902cf94821483c548044514e59f041af1c6490e3dbe0273 |
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font_01_sfnt_off0000c702.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC702 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000df14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF14 | 16644 bytes |
SHA-256: ff371335b99b3cfba2d673d87a452390f00bed8ea7d4379aba148143faac0c95 |
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