MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains multiple links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a link farm used for phishing or malware distribution. The 'SE_CLICKFIX' heuristic indicates the document instructs users to execute commands, a common social engineering tactic. ClamAV detection and ML classification confirm the malicious nature of the PDF, likely serving as a lure for a phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://bookblog.kr/data/file//files/65291402780.pdf In PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/mfklmkv8m72jjtm5omt5o00es0/95043140324.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/6c7f32aa827ef36b448bba7c5ca12c7f/92517620966.pdfIn PDF document text
- https://charlesstreetvideo.com/userfiles/file/12502556431.pdfIn PDF document text
- http://barksdalereunions.com/clients/869108/File/gepoj.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4a22df28b---14026260954.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/ac3204992723aea9ee5b1e7251287e56/56143828757.pdfIn PDF document text
- http://helder-effect.nl/userfiles/file/70257521333.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/r4oogcr9afmermbav0i3bb3dd2/55840784511.pdfIn PDF document text
- https://annekienlen.fr/imagesfile/figadipijotepazukot.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/3dgfi3arn5q43hh1fbnoq3hmm5/53646269563.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d9c86c7c6---11608366992.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608800b7319af---36082789395.pdfIn PDF document text
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6e359ffdc3e7ed0580a9235b12b8191b/61463685481.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/f18voa616ecv5ko6213m7n03n5/19477202431.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16081fcd3a3e20---bajomala.pdfIn PDF document text
- http://voxel-avocats.fr/uploads/file/busopagoruduwonigit.pdfIn PDF document text
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fcf7a21002---74725849328.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/d4713c22439c94ae11e9c29372772901/88366524413.pdfIn PDF document text
- http://all-pass.com/folder/editor/file/33886217420.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/2p8fsltv7d3kaok051u7e74f73/zisaketumumuliselenelepu.pdfIn PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/vupekova.pdfIn PDF document text
- http://beiwendq.com//data/attachment/file/lobigusipivavadagi.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075e19c7727b---74314335871.pdfIn PDF document text
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/kj7v92et35618loa4futk8fqnh/rozazusuzo.pdfIn PDF document text
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/of9ac1n3uohicv94f5k08l50cc/nujawuxe.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=manually+remove+mcafee+agentPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f1e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1E1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109F3 | 17900 bytes |
SHA-256: 4f86fc232e9224e6d0bb2d8bebc2b0ac41a02c93e8a30ed54cbcd934061a49e9 |
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font_02_sfnt_off000138ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138BA | 10692 bytes |
SHA-256: 7bd65c69a4730672da4c2f13799ed31a4bee95278bb6c421a70ae1b8e3e2939a |
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