MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript, which is often used to initiate malicious actions. The heuristics indicate a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting an attempt to distribute further malware. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports a malicious intent, likely involving phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 8
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://islaminkiel.de/webmisr/uploadwebmisr/file/najifajuxudalub.pdf
- http://kleinschaden-expert.com/userfiles/file/82170574994.pdf
- http://orderkai.com/uploads/files/fimesolirafolujelejodof.pdf
- http://bugaboo-buffalo.eu/UserFiles/File/31973480949.pdf
- https://pierreseche.fr/userfiles/file/natiwawenobawewubaf.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132f8152505c---tozizokexidofumufajakebo.pdf
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161412d07114c3---zalometifuwamedowalakam.pdf
- https://herfection.herfection.tw/upload/ckfinder_temp/files/20210905040942.pdf
- https://steammining.com/userfiles/file/70822968637.pdf
- http://tz5168.com/uploadfile/image/2021/09/07/file/20210907_123720_110.pdf
- http://avtokapriz42.ru/userfiles/file/lededuxilejagelegozas.pdf
- http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/rotesobox.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/hgh7s3vdmjmnt5cmqr0he255hh/relebodituluroku.pdf
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16130e4e1e1a77---26486335505.pdf
- http://timandlor.com/userfiles/file/92181699412.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134866666c0b---dodosipuwiboregidabuji.pdf
- http://sokole-tps.pl/userfiles/file/62904128429.pdf
- http://musclecar-taps.com/js/upload/files/61866341447.pdf
- http://roycraft.ca/userfiles/file/42312646904.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/b05c3974aca50bc236bc6ac76389dc7a/woruvug.pdf
- http://jump360.co/upload/files/20210912020952.pdf
- http://theprofitnesstrainers.com/userfiles/file/71412223903.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161375a411cfbd---woteratalixifefo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=if+we+see+someone+profile+on+instagram+will+they+know
- 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_off0000d6c6.bin6aa570963123d1aa1e8ad17d14e0c71f4e3ad08f20569f59d3fde94c82fe2cac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6C6 | 18436 bytes |
font_01_sfnt_off000106aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106AA | 16792 bytes |
font_02_sfnt_off00011ec1.bin3f533c186b72b902535a9ddb5eaeaefc24a443bde4b7a2fd6e5d66a50e513936 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EC1 | 11048 bytes |
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