MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. It contains numerous embedded URLs, many pointing to compromised websites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The use of compromised CMS upload storage and disposable hosting further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://inwebjor.ru/uplcv?utm_term=los+girasoles+ciegos+alberto+m%C3%A9ndez+pdf PDF link annotation
- http://workcoop.org/fckeditor/userimages/file/20210801134548.pdfIn PDF document text
- http://sarljarry.fr/userfiles/file/71330250659.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e7e42e4b63a---budibefubatibiliwedi.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160aa64f90408b---korigefi.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/89fe1d6fd10678c3dd47234644e774c1/tanar.pdfIn PDF document text
- https://www.anandtirth.com/wp-content/plugins/super-forms/uploads/php/files/cc2jt4qruiimg0d8f0h5abpqo6/37859922848.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8f086bf879---muxezagojimidusa.pdfIn PDF document text
- http://nessie-vinylcare.com/file/kameli.pdfIn PDF document text
- https://durimawar.com/contents/files/74000096697.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6be6bbd8a---69926495083.pdfIn PDF document text
- http://yulintimber.cn/d/files/83998107815.pdfIn PDF document text
- http://sicilyontable.it/userfiles/files/gabadulam.pdfIn PDF document text
- http://sgd42.ru/userfiles/file/jurumojifapezazineva.pdfIn PDF document text
- http://ekolojikweb.net/upld/userfiles/file/85967129549.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/5f30ffc23e022c70f55d02ab5fca659e/71855996263.pdfIn PDF document text
- http://teaneckhs1977.com/clients/67867/File/xosetabivepileremu.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/4jncgi731h626g5m71q7ldijsd/70625643698.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16110e7598f7cf---debizuv.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d2c3a4fd2---lamoga.pdfIn PDF document text
- https://aiaciran.org/cache/fck_files/file/37162327473.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160b6d16970723---28990080012.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1609c445592b08---79751699070.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210825043109946.pdfIn PDF document text
- http://billsky.ee/files/file/wamopujofomutowexewubo.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d2f499cb9e3---63699150631.pdfIn PDF document text
- https://mimpishio1.com/contents//files/fibex.pdfIn PDF document text
- 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_off0000c9fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9FA | 19848 bytes |
SHA-256: c2b9061f18d4e924ba1678c02c19090876fbfbaf190fc6a8c061440e90a3b12e |
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font_01_sfnt_off0000fbd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBD9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000113f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113F0 | 11272 bytes |
SHA-256: fbbb51fabb878e92cf044ed7c434580028acea61daea60c08d14721ffc3bfe64 |
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