MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document functions as a link farm, directing users to various compromised websites. The presence of the 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates that the document likely instructs the user to download a password-protected archive, a common tactic to bypass security scanning. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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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=%C2%BFc%C3%B3mo+instalar+un+certificado+digital+en+google+chrome
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160809c2fa7b29---dutudixepaxes.pdf
- https://sgotomotiv.org/upload/files/fimewigevozulotebibupedaj.pdf
- http://ipceurope.eu/assets/file/wezerumava.pdf
- http://babywagen24.de/userfiles/file/63086829251.pdf
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/a9099b1b67ba7bbeeca7f6e651e9ef24/fizaforixofujimidabovabo.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a7de71bbf0e---21017666084.pdf
- https://bor-diing.com/upload/files/53253600269.pdf
- http://iziusb.com/userfiles//file/58537197334.pdf
- http://anhbanglaw.com/userfiles/file/gufuzuvef.pdf
- https://ashleymongolia.mn/uploads/files/51785163798.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160cd902516352---32606336197.pdf
- https://myphi.biz/nbloom/fckuploads/file/romapepu.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/cebe253fda4414a015b11df895eb8c31/49073561785.pdf
- http://winterwonderlandzundert.nl/uploadimages/files/wefelapufu.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609b36da09e3c---44464790380.pdf
- http://casadiriposomarsala.it/userfiles/files/19320557159.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/lq4khl35n9upvhrr84nv3nnvuj/bodivuvo.pdf
- http://phonphangschool.com/upload/files/26867538975.pdf
- http://aihyang.com/userfiles/file/tawakupaponoze.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16082a85792e4b---37449301903.pdf
- http://ladakhtripmaker.com/userfiles/files/reromawo.pdf
- http://pcwest1980.com/clients/9/9b/9b13e9c1eb96aaf026ead536bb80a376/File/29059815360.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ebd5.bin41c638c545c65e3678996fcb4d79d17184252c29ff686fac56773213b0bace18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBD5 | 17444 bytes |
font_01_sfnt_off0001181a.bin8f146edb80f523fcdc6a9bb92ae34d11c83b09975683d6886aa8fee5e75f8c73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1181A | 11216 bytes |
font_02_sfnt_off000131a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131A6 | 16792 bytes |
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