MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF is identified as an image-only lure, a common tactic for phishing or malware distribution. It contains numerous external URIs, including one pointing to 'chcial.ru', suggesting a redirection to a malicious site. The ClamAV detection and ML classifier further support its malicious nature, likely involving a trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://chcial.ru/uplcv?utm_term=wwe+mayhem+hack+mod+apk+download PDF link annotation
- http://spzpoz-zdunskawola.pl/upload/file/60858430783.pdfIn PDF document text
- http://dailymaydemtien.com/userfiles/files/44651899103.pdfIn PDF document text
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/161401b0946384---tubexumazixu.pdfIn PDF document text
- http://sbairs.com/datas/files/folojiwunati.pdfIn PDF document text
- https://fullhousetourism.com/UploadFiles/file/20210904175605112.pdfIn PDF document text
- https://buddhaart.in/userfiles/file/71928272474.pdfIn PDF document text
- http://nesemlak.com/test/images/uploads/files/xuxazipetotonadok.pdfIn PDF document text
- https://whitesal.com/data/images/file/1403_20210910193246.pdfIn PDF document text
- http://tuanlongland.com/upload/files/94898191001.pdfIn PDF document text
- https://shindah.com/images/ckeditor_img/files/dizemov.pdfIn PDF document text
- http://eugensa.lt/app/webroot/uploads/userfiles/files/4244031763.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/93117793262.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410f149ecc2---96061196914.pdfIn PDF document text
- http://sdds.be/userfiles/file/75271565173.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/wunoninapebijaje.pdfIn PDF document text
- http://westernstudioservice.com/admin/userfiles/file/dotawafimafiguwadumilefiw.pdfIn PDF document text
- http://www.propper-droppers.nl/files/file/71650572780.pdfIn PDF document text
- http://neonatal-surgery.ru/userfiles/files/jawav.pdfIn PDF document text
- http://alacarte-design.de/userfiles/file/7724652520.pdfIn PDF document text
- https://soi.icami.mx/ckfinder/userfiles/files/lenupaxigideberevubumulax.pdfIn PDF document text
- http://ukwoodrecycling.com/userfiles/files/dirulugipez.pdfIn PDF document text
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/bufepomurefepuzuti.pdfIn PDF document text
- http://bfttacg.marketsearching.com/upload/files/50728549916.pdfIn PDF document text
- https://prtl.pl/userfiles/file/20411103535.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_off0000b2f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2F9 | 14300 bytes |
SHA-256: 01b03d922e1fdd5c3e7a423e2e5177c3191ed1ce845c27df52762c189a2fe80b |
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font_01_sfnt_off0000d658.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD658 | 10608 bytes |
SHA-256: 56f244bf3282345e30f8286ea3a32d05942695dd7c70cb541d08ccd72b69efa8 |
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font_02_sfnt_off0000ee6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE6E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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