MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ClamAV as a phishing trojan and by an ML classifier, indicating malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites, likely serving as a distribution point for further malicious content or phishing pages. The presence of multiple distinct hosts and the use of WordPress upload storage suggest a coordinated effort to host malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090ea01dbc81---4856519986.pdf In PDF document text
- http://arci-mp.fr/admin/File/85138951031.pdfIn PDF document text
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/e1dd12103389cd763d1679fd41ecc096/dexotakiselawonasagugejud.pdfIn PDF document text
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/c7a9639b7e67685f47b595286f9e762b/26322666922.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/e99bef79b1c8d5cfc1e6e7e60c6eabdf/13595151172.pdfIn PDF document text
- https://boucherienabli.com/uploads/FCK_files/file/25048569459.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/8768bd0c8c498b3083780fd3b60382c4/togesuzapijikine.pdfIn PDF document text
- https://cottonweb.net/userfiles/file/buziraxolizivape.pdfIn PDF document text
- http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kurugazizakozaba.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16082fad11c064---xegabogunomamavabo.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160acf2818a124---peson.pdfIn PDF document text
- http://emilymillerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xutumipuwepopivenitokubul.pdfIn PDF document text
- https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/41aa6a50f967c89aa1bc9714f7bbe4b4/48140213628.pdfIn PDF document text
- http://hoaisonland.vn/upload/files/62571153549.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160712f8c4c2f8---ruvomasaxuposezesazupobe.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b08c63d9ab---zitimejafibe.pdfIn PDF document text
- https://n-zvuk.ru/upload/file/xosesad.pdfIn PDF document text
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/amp4ibumks6ivis13f7id2ukqq/timurikuk.pdfIn PDF document text
- http://charivne.info/images/file/25797152369.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/90377824c59c8357444a25c39673d300/vosuzekeniseta.pdfIn PDF document text
- http://dienmaythanglong.org/uploads/files/57162861471.pdfIn PDF document text
- https://aspaeng.com/files/image/files/dujak.pdfIn PDF document text
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/df388b3518cefc0f9803a57aebfcffb8/77003343512.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f516cd70c---jemakikopetedawu.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160947781df880---45303278540.pdfIn PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/a77aef60f0f0bd6bfeb1c455565683e0/vovalifebesidedoleb.pdfIn PDF document text
- https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607be3e5ecca6---26631344196.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=pronunciation+of+wellPDF 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_off0000f5f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E07 | 17232 bytes |
SHA-256: e5998d5768097d27e333ce7e15011330e4caaa651bfee286920a8843596a1080 |
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font_02_sfnt_off00013b05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B05 | 10348 bytes |
SHA-256: 53b2e1d949e06157ca389ce179fa4b3dfc815ed5bf9ca3687976320a70d0a116 |
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