MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS uploads and disposable hosting, indicating a link farm designed for redirection. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were extracted, the structure and URL patterns strongly suggest an attempt to lure users to malicious sites, likely as part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://zeshengtecphar.com/UploadFiles/FCKeditor/20210901200440.pdf In PDF document text
- https://vanphongphamhienluong.com/upload/files/31479696642.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/0sddgeljk48sqenh33669970ra/zilati.pdfIn PDF document text
- http://gostinica-domodedovo.ru/files/gavazupiteda.pdfIn PDF document text
- https://padservhosting.com/userfiles/file/mevuzoxifilubu.pdfIn PDF document text
- https://99shayari.in/userfiles/files/30031895737.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/30d22d775dac6115ee7f7415e3b87bc0/11905445266.pdfIn PDF document text
- http://cafehinglung.com/uploads/files/1577676122.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613397e267f19---22897029009.pdfIn PDF document text
- http://zamdq.com/filespath/files/20210910233456.pdfIn PDF document text
- http://fonnepal.org/userfiles/file/pujerax.pdfIn PDF document text
- http://abwjefferson.com/uploads/files/megeboluwaz.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f02960295d---bevojowuwugofimivudola.pdfIn PDF document text
- http://controldellaves.com/app/webroot/arxius/file/sopewajaxasomowafovopopa.pdfIn PDF document text
- http://perfekt-dom.pl/designhome/admin/userfiles/file/70250434154.pdfIn PDF document text
- http://faurau.com/luodan/images/userfiles/file/2046758340.pdfIn PDF document text
- https://sistemagestiondpr.com/userfiles/file/sesefitofawitilazisarel.pdfIn PDF document text
- http://notariocprietoa.com/notaria/documentos/files/kafilagimejip.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/3e872b3b287d1abf9fb51dfc57847dba/52756928377.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed54060ecf---pitujatenefezikosifadi.pdfIn PDF document text
- http://ooexperience.be/assets/Image/files/zelifazuwululunepoxo.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613df6b5b4568---jofenerotexekixopezeto.pdfIn PDF document text
- http://fgsconsulta.com.br/ckfinder/uploads/userfiles/files/ruxogu.pdfIn PDF document text
- https://colakcivi.com/userfiles/file/50982211770.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=mod+avakin+life+hackPDF 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_off0000e623.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE623 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fe35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE35 | 17820 bytes |
SHA-256: d9d3fdbc19ccca91831979787c79a5d78a247b2e87952e6f79ce6e28426d3061 |
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font_02_sfnt_off00012cb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CB4 | 10356 bytes |
SHA-256: 1365232d6e29ab6518f6c990bba01f46bed0b2708726805ad33cd9f0c90629dc |
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