MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting a link farm designed to distribute malicious content or phish users. No scripts were extracted, but the overall structure and URL distribution are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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://laborke.ru/uplcv?utm_term=the+giver+answers+chapters+11+15
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160f466c1b2efd---22933765349.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609a72164a748---dupupugu.pdf
- https://vaynhanh365.net/contents/files/10538789158.pdf
- http://loscogliodifavignana.it/userfiles/files/zokevo.pdf
- https://ssekolkata.com/ckfinder/userfiles/files/48000506870.pdf
- https://beysukonaklari.com/ckfinder/userfiles/files/woziralegedawa.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090888f9c735---51455903535.pdf
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/c9e4fa3410433c6fc0e72f940f4783d3/simomewevu.pdf
- http://hgbs.de/userfiles/file/52793298599.pdf
- http://itexpertdog.nwoasis.com/upload/files/marubuzepu.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612829e930f3d---gidalax.pdf
- https://www.ewdel.cz/ckfinder/userfiles/files/rutavudulexojojudedexo.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfdd458b602---81978595306.pdf
- http://barrybusiness-crm.com/ressource/devis-photo/files/40948693560.pdf
- http://cga82.com/admin/File/bidujigixubezew.pdf
- https://kildevangen.dk/files/98076047863.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/tuq1kgposfd8ka8rqb8k60fahh/bujugezoxujivaka.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/b86fff2364cfffc6eacbd840a1d0d66e/satorefamoxilenejowad.pdf
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d58e6d2a02---48892173522.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160c76e91617f6---99142223821.pdf
- http://saopauloairporttransfers.com/ckfinder/userfiles/files/55109039884.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baf405d7171---wonulabotuxa.pdf
- http://klwas.org/userfiles/images/file/rudefuduwelas.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_off0000e11b.bin917901a2f54c31f311b57cb2fa3f287c6766e1b5ff06fe10145683a0be508988 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE11B | 10788 bytes |
font_01_sfnt_off0000fa19.bin741ee3f0c0d20fc92588c2e593a98673f143785a90d719529f0318fd1c0e8ef9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA19 | 17008 bytes |
font_02_sfnt_off0001260c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1260C | 16792 bytes |
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