MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The presence of multiple external URIs and link farm indicators strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://xpress2.eu/ckfinder/userfiles/files/wewawudelodopuguw.pdf In PDF document text
- https://masterjobintl.com/ckfinder/userfiles/files/gosuvimomojutagugu.pdfIn PDF document text
- http://delannahotel.com/user_img/file/75029167345.pdfIn PDF document text
- http://asremajazi.com/uploads/files/voxeju.pdfIn PDF document text
- https://threadworx.com/thread/admin/uploads/file/sesitozisuzatunalofam.pdfIn PDF document text
- http://diysmart.net/userfiles/file/16830389.pdfIn PDF document text
- http://vanhacollection.com/images/files/2503819223.pdfIn PDF document text
- http://ciaooo.ru/uploades/userfiles/file/50711540052.pdfIn PDF document text
- https://theurbanthinktank.com/files/fileserunoponosemokip.pdfIn PDF document text
- https://granitnet.hu/editor_up/rutodev.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614073667acea---68260857750.pdfIn PDF document text
- http://prime-standard.com/piceditor/file/43246357719.pdfIn PDF document text
- http://k1a.ru/images/files/file/27140495221.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613edb991e8d6---tiveriwokoriditur.pdfIn PDF document text
- http://bukharajohnscreek.com/sites/default/files/file/puzimugufirejivulevaje.pdfIn PDF document text
- https://butyfarm.mm520.net/userfiles/files/86665206437.pdfIn PDF document text
- https://cuichi177.com/uploads/files/202109060430196087.pdfIn PDF document text
- http://veterinariomauracotti.it/userfiles/files/50205381136.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2a09edfc9---49185029558.pdfIn PDF document text
- http://nzozkrowodrza.pl/uploads/editor/file/fikonosuvawenexasufuvi.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/069e4f6d590b375ebfaa267b0df416e8/83973697574.pdfIn PDF document text
- https://pisangmanis.com/contents/files/katixowojax.pdfIn PDF document text
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/mutatisasa.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=minecraft+1.7+10PDF 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_off0000edf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001060b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1060B | 17800 bytes |
SHA-256: f43e8ec86adbcee902f80636964550bf205b4fc89f4f0e3fe5ced74dc215c3d2 |
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font_02_sfnt_off000133d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133D5 | 10276 bytes |
SHA-256: 7b41c1b5be5cc65e5d9d959d30416208a4270f25a6bd7d33f9cb445969136e7a |
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