MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608404ce0dcac---80711674492.pdf In PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/4fc5d820478ac6ec1a0dda206b2670ed/53650017348.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/0msdvcqgte5sa4re4ou1kmp2qo/bosolazexu.pdfIn PDF document text
- http://www.serge-valentin.net/ckfinder/userfiles/files/19210032010.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/tawurejuwijadigez.pdfIn PDF document text
- http://pinzimoniofiumicino.eu/userfiles/files/mofifivufufexitaposunuwi.pdfIn PDF document text
- https://vegan-eshop.cz/data/file/94230499724.pdfIn PDF document text
- http://win-sonic.com/kida2018/ck_imgs/files/suragalek.pdfIn PDF document text
- http://posicert.com/upload_fck/file/2021-8-3/20210803010027305519.pdfIn PDF document text
- http://stl-hk.net/userfiles/nupikobazunirovifube.pdfIn PDF document text
- http://asfalon.com/__files/file/matexidamise.pdfIn PDF document text
- http://jlm-kg.com/uploads/file/bevobovidozek.pdfIn PDF document text
- http://griswoldremgmt.com/uploads/files/pefagedusurasazaganubej.pdfIn PDF document text
- https://firesystem.ro/imagini_ws/10412923038.pdfIn PDF document text
- http://ipceurope.eu/assets/file/74763367766.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a16b058ac25---57021441659.pdfIn PDF document text
- https://walkandsmile.com/userfiles/file/fapepitevuligosupe.pdfIn PDF document text
- http://unternehmensberatung-hegenbarth.de/userfiles/file/75940399719.pdfIn PDF document text
- http://www.urbanwaterways.info/files/67677817354.pdfIn PDF document text
- http://ahkjt.com/upfile/file/90680790013.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=quantitative+analysis+for+business+decisions+pdfPDF 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_off0000ce94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE94 | 11092 bytes |
SHA-256: 2d33a54afb34b8e240b960e1214cdddc1100dd471181d5cd85112dd84ac467be |
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font_01_sfnt_off0000e882.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE882 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010094.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10094 | 17424 bytes |
SHA-256: 28276f0f2da53061af6169d3a8de76a0be04fd80f16415bc883ea35e948e5238 |
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