MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a heuristic firing indicates it's a link farm on disposable hosting, with 23 distinct external URLs. The primary external URL, https://crysiq.ru/uplcv?utm_term=pubg+mobile+global+obb+file, suggests a lure related to popular mobile games. The embedded JavaScript likely facilitates redirection to these external sites, potentially for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 5
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://crysiq.ru/uplcv?utm_term=pubg+mobile+global+obb+file PDF link annotation
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/bakaxatewalo.pdfIn PDF document text
- https://www.psk.com.au/application/third_party/ckfinder/userfiles/files/bawedemuredinonasawi.pdfIn PDF document text
- https://cuatudongbinhduong.net/uploads/files/25413769395.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/salupeguzojefefirow.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ef23e5fc7---60761112450.pdfIn PDF document text
- http://rowadhr.com/app/webroot/upload/files/jozevuravima.pdfIn PDF document text
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/1g0aro5p9sdb0dr4jk168k5ht7/56365440508.pdfIn PDF document text
- https://www.algeos.com/js/ckfinder/userfiles/files/debopekav.pdfIn PDF document text
- https://treasurehunterdetectors.solar-ovens.net/ckfinder/userfiles/files/4931600608.pdfIn PDF document text
- https://mattress-leader.com/media/97342578551.pdfIn PDF document text
- https://bbox.ru/images/shared/file/33879968894.pdfIn PDF document text
- http://sapthagireesyathra.com/userfiles/file/66294875265.pdfIn PDF document text
- http://rdasesores.gestconcursal.com/editor/ckfinder/userfiles/files/6109641788.pdfIn PDF document text
- http://footstepfloor.com/upfiles/files/11473514808.pdfIn PDF document text
- https://aahs.givingplan.net/sites/default/files/editor/file/mivepug.pdfIn PDF document text
- http://superazs.ru/images/news/file/rosobinoxakezupo.pdfIn PDF document text
- https://junona.manyel.website/images/uploads/medium/23875243827.pdfIn PDF document text
- http://krzysztofmalec.pl/gfx/fck/file/mimeximosenaverafomu.pdfIn PDF document text
- https://saleskerala.com/ckfinder/userfiles/files/57608100683.pdfIn PDF document text
- http://jjkxmy.com/upload/files/202109230153214964.pdfIn PDF document text
- http://bugaboo-buffalo.eu/UserFiles/File/62716702810.pdfIn PDF document text
- http://89928386.com/uploads/files/202109070359337311.pdfIn PDF document text
- http://immobilieninvestors.com/userfiles/file/56229114705.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_off0000b155.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB155 | 16484 bytes |
SHA-256: b1bc28cd772c829588b60b31005b2e79fab39de8e84cd07c1c133d4d623b6fdf |
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font_01_sfnt_off0000db56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB56 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f36d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF36D | 10328 bytes |
SHA-256: 851bb91aa91b5129442621541ba578a04cd93e72b66497b2c88ae9cb73d859fb |
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