MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised WordPress upload directories. These links likely serve as lures for phishing attacks or to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075195d48b22---44811288680.pdf
- http://digifast.cz/userfiles/90812170344.pdf
- http://sxhk365.com/uploads/file///36875075057.pdf
- http://bouncebodysupplements.com/newerac2c/userfiles/file/gatixi.pdf
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/072291ead2ce64d77e21490b77ccba91/suzip.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a3b2aacf8ba---xopasozozaditot.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/5pse4gg8mvdhkbl30pbh6bo1l2/radawowosidu.pdf
- http://www.logomarcanet.com/userfiles/file/82709233267.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/60hphkvb0bfaf45fe10ldgarq1/93701153156.pdf
- https://yucekalipmakina.com/tsrm1/img/userfiles/file/78671503460.pdf
- http://aliceinformaticasrl.com/user/pages/87551095091.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/cd2f76a857fb614560de2762711e5913/98983811591.pdf
- http://komputerzagrosze.pl/userfiles/file/86042721487.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baad2d06b76---49327348811.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/9bc4f5e3c5ae5de0cd5fff2ec68b2f4f/fatanonodekabezonesog.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/cf6d3ac518889c2ccea7736198a16bfa/68020767973.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160836e42afc36---gowixudivexetasok.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/f9f77d768d3f3306f2fc130e660f5f61/vasajavom.pdf
- http://nowyhotelik.pl/userfiles/file/46895200077.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/413386ae1a88ba030f135d1335960b9a/ganimopevopakuloveponese.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082cccc1c7d6---10641889716.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/ccc40f285180c81707a81c336c74af05/vunozukelanaka.pdf
- http://azizolace.cz/images/file/69596529587.pdf
- http://daiichilogistics.com/uploads/news_file/20308409387.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/1edbc12d045136001050ea003429cc18/sipateridamil.pdf
- http://uforoi.com/app/webroot/uploads/files/22559791709.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=sample+of+authorization+letter+for+claiming+money+remittance
- 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_off0000e6dd.bined6dce65e4032049466a21f022ea61a0bad2d0c28af31fa45627a72596a5a394 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6DD | 17688 bytes |
font_01_sfnt_off000115a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115A7 | 16792 bytes |
font_02_sfnt_off00012dbe.binb54d9f95d0de096b7e4cdb9e5358901472d21850ee1e17ab21f1d53e070c3b5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DBE | 11108 bytes |
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