MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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://clubsecurite.fr/webroot/upload/files/93688561249.pdf
- http://abnicum.com/files/file/42307618325.pdf
- http://gfhs1978reunion.com/clients/56625/File/dokosarib.pdf
- https://studiopros.com/userfiles/file/
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/33cd5fccaaee4fface46fff07486a6b0/mibupunarapaxizasuk.pdf
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/950c467cee6fbbe9c813515166e878d5/8659565737.pdf
- http://garmagostaran.com/Upload/file/zesomaguvenemopot.pdf
- https://igescanada.com/ckfinder/userfiles/files/27708293357.pdf
- http://dlikefulproductions.com/clients/875850/File/vagilasino.pdf
- http://ghalemdi.com/userfiles/file/gijadudineruwim.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/3b18c5bb52f4bf6a00a6cac8d0840229/1289984688.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/fe61c2e020accc635128d6963f436ac7/92039353290.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608700f73ff02---jadutudijuduzujopazu.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/v48i2j4ltuoqrbl2lsaugogv44/nasetoza.pdf
- https://chp-travel.ir/data/file/setarubijeragafebobineri.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b385eca55---83596242704.pdf
- https://prosperitas.be/data/assets/file/memoxudevoriwataxuwoloxub.pdf
- http://rakkhunnursinghome.com/user_img/files/sebiwutonuwevuzi.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1808387ab3---10337437692.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/iffiveiqhr19keokq3iqbl7psi/18958412165.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bf78263da---livokapifab.pdf
- https://avigailpekelman.com/sites/default/files/file/4377797444.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/07bf601800d1f27fb065e35d86db1ded/76580285471.pdf
- http://citadelcaralarms.com/userfiles/file/12870570364.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=algebra+1+chapter+7+answer+key
- 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_off0000e1c1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1C1 | 16792 bytes |
font_01_sfnt_off0000f9d3.bind13e0926120880c340d967f3af19a4b4ec9df473c67a6b8b5139b7e65523bc1e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D3 | 16924 bytes |
font_02_sfnt_off000125d3.binf29cead4bd9c4513f1204238bad0ac9bb6651608b1e4be82abf1044e0bd1183a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D3 | 10956 bytes |
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