MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was identified as malicious by a machine learning classifier and ClamAV, flagging it as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to potentially compromised WordPress upload directories or disposable hosting. The document body is heavily obfuscated and appears to be non-readable content, suggesting its primary purpose is to host these malicious links rather than convey information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/161348fa1c4e90---69523422192.pdf In PDF document text
- https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/saxabagozeba.pdfIn PDF document text
- http://trust-law-firm.com/userfiles/file/20210901075705_904477154.pdfIn PDF document text
- http://getwealthythisyear.com/ckfinder/userfiles/files/44279967965.pdfIn PDF document text
- http://ladna.pl/user_images/file/32516558143.pdfIn PDF document text
- https://onsale.social-push.cc/data/fckeditor/files/wuvudiwodo.pdfIn PDF document text
- http://abnicum.ru/files/file/babidasunosotuwezu.pdfIn PDF document text
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/29183305270.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/19049606054.pdfIn PDF document text
- http://clubesquilacoma.com/uploads/files/kikajirakatafumobaxi.pdfIn PDF document text
- http://gwtcs.org/Content/uploads/files/86444098510.pdfIn PDF document text
- https://www.clinicaepilepsia.cl/ckfinder/userfiles/files/nusasome.pdfIn PDF document text
- http://ks4073.com/file_media/file_image/file/mizalitusujebafedijaruso.pdfIn PDF document text
- https://sukaunited4d.vip/contents/files/95559473239.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/26053gombin98i8pt9lubqbas3/36437379344.pdfIn PDF document text
- http://bluelakehomestay.com/uploads/image/files/saranoxekejakarinut.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/qars6poht9702tvedl66pt1rtn/67403484742.pdfIn PDF document text
- http://topup-fight.com/ckfinder/userfiles/files/xijotin.pdfIn PDF document text
- https://promtour-rural.ro/userfiles/file/dafatowaxusow.pdfIn PDF document text
- http://aktien-analyse.de/images/File/bigizibobipobeloxiwadoru.pdfIn PDF document text
- https://rakowka.pl/userfiles/file/8144932666.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/68174756164.pdfIn PDF document text
- http://lammensfilip.be/uploads/files/58398541504.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=paranoid+personality+disorder+medicationPDF 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_off0000daf0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAF0 | 10788 bytes |
SHA-256: 684aaeee202067ace280cccb32166cfdc7190d8d616237f3ad71d040173265af |
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font_01_sfnt_off0000f3c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C7 | 17184 bytes |
SHA-256: aedd37968991341807fa3a73943b55d382b1f7c22f93aae0f98a72d3064d6a29 |
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font_02_sfnt_off0001202f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1202F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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