MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. The primary attack pattern involves leveraging these links for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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 http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/ea1da7e1fc5e066bc9deaf1834f9e2b1/24476712622.pdf
- http://nail-free.com/ckfinder/userfiles/files/197393963.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084eddee8747---jobusavuxabigaroduzo.pdf
- https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/0k1r6tp9blkjbda0c4p20ltna7/jedemodofejoraxid.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a187201e39b---70975222104.pdf
- http://sibaco.ru/ckfinder/userfiles/files/setinupa.pdf
- https://sanaspinler.com/calisma2/files/uploads/55209957615.pdf
- http://www.slenderclub.cz/ckfinder/userfiles/files/22557508952.pdf
- http://carshopm.com/js/upload/files/bozatibetubiwokixizaki.pdf
- http://myphammonly.com/luutru/files/vepafuzeju.pdf
- http://aweibel.com/Photo/file/tonebiji.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/addc69676d57a590bd3f318bc45f366d/6410178283.pdf
- https://nangluongvada.com/uploads/files/82804632530.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f7ce66d2a---kivijuravofofoxi.pdf
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/35995661979.pdf
- http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac6a0c0546---fidoferatagijitagete.pdf
- http://gtlmarinefuel.com/userfiles/file/83226766910.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/8qdqbtkpr8vo24r3h006o8208l/romokoxapivuxowob.pdf
- https://aymexco.eu/ckfinder/userfiles/files/xoxofigomuxitegufaji.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b42bddb9af1---8717780091.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160742704b7042---72915768042.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/b7bd553510d759b7a4dc5ee7a76969b1/dufumezabubojiraku.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/hejva7m1lb4poh5e3rku5ooi45/likekesibujamusorevisekoj.pdf
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/2d25d48f8d4f55b5f80e4a8b1a26aedd/183478992.pdf
- http://netpost.vn/upload/userfiles/files/39724779517.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=que+es+emulsion+en+quimica+y+ejemplos
- 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_off0000f604.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF604 | 16792 bytes |
font_01_sfnt_off00010e1b.bin9aea2bb2438751cf028f9ea827b3b501f4f3c9fd9be7c80a1691ed6f77db72c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E1B | 10884 bytes |
font_02_sfnt_off0001274f.bin5c8cf6450f763588d8f20fe68e49eeba826284e4760fd03f7b0e35ecbbdefa4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1274F | 18008 bytes |
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