MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://krisoc.ru/uplcv?utm_term=raspberry+pi+3+pin+diagram+pdf PDF link annotation
- http://tubietelbar.hu/uploadfile/lexavijovedulipesulawi.pdfIn PDF document text
- https://area5srl.it/file/37298908047.pdfIn PDF document text
- https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/b21dedcb5bfcf1b98c7184009ce1fc41/ketofuvegagut.pdfIn PDF document text
- http://stardentalcare.org/userfiles/file/21662126778.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160daf007e5f0e---moruvudevixesuvofonu.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087a99cc1579---44810545824.pdfIn PDF document text
- http://hifitness.hu/userfiles/file/felovivil.pdfIn PDF document text
- https://empezo.xyz/js/ckfinder/userfiles/files/28600057534.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/4ca90fd195e6c79c89a230de73f6375a/lizomazinoxugefi.pdfIn PDF document text
- https://telenovella-bg.com/files/76947560.pdfIn PDF document text
- http://www.ecostroyservis.ru/File/dupuwuv.pdfIn PDF document text
- http://trineckevzdelavani.cz/webpagebuilder/ckfinder/userfiles/files/4685867878.pdfIn PDF document text
- http://telegid.tv/userfiles/files/munuzurapemavimipimenig.pdfIn PDF document text
- http://kancelaria-perfect.pl/app/webroot/media/files/81922317048.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/95e92c6dc43f4b5b4411d532354947fb/vifuxazorel.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/93784313273.pdfIn PDF document text
- http://markone-tools.com/upload/files/19781667847.pdfIn PDF document text
- http://kasargod.net/uploads/file/92608395869.pdfIn PDF document text
- http://union.travel/ckfinder/userfiles/files/74117413018.pdfIn PDF document text
- http://eko-inwest.eu/upload/file/2119016614.pdfIn PDF document text
- http://cungcapluonech.com/upload/files/luxadifuzawafadidugovowom.pdfIn PDF document text
- http://www.sudaff.com/pics/file/bodimegovidomatovawujete.pdfIn PDF document text
- http://aktifithalat.com/resimlerfiles/38975020846.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_off0000e4f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4F5 | 11048 bytes |
SHA-256: cd9a4f8866aab0eb36d12f04d9e5d5c8f6a013f9177065d9a8c6e265f19bfcdb |
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font_01_sfnt_off0000fe40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE40 | 19644 bytes |
SHA-256: 336a6d951f8dda9bf9d48751d1247b4fb1ae31af0fbbf803a15d8b30a647fc4b |
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font_02_sfnt_off0001313a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1313A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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