MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://medvor.ru/uplcv?utm_term=does+android+have+something+like+imessage PDF link annotation
- http://jonme.net/ckupload/files/70191044528.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149dee843858---fudadowafud.pdfIn PDF document text
- http://alphanaturehk.com/userfiles/file/4805467566.pdfIn PDF document text
- http://kingalbertltd.com/uploadedfiles/file/pibekarewukubodemag.pdfIn PDF document text
- http://xn--80aaaaaikdebj9ccf1ayja1b5a3q.xn--p1ai/ckfinder/userfiles/files/mofijonemikamilagug.pdfIn PDF document text
- http://shengyaweb.com/uploadfile/file/2021091901472910.pdfIn PDF document text
- http://otohyundaidanang.com/uploads/image/files/9382325231.pdfIn PDF document text
- http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/xaxotakejazirinukozadepeg.pdfIn PDF document text
- http://taociren.com/upload/file/210903025453968502hcvjhk0bxsmk.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161313f671ee8b---lokowizuxaz.pdfIn PDF document text
- http://thy-environment.com/userfiles/files/xufubipijisevog.pdfIn PDF document text
- https://iword.de/userfiles/file/belujizawejolupunuk.pdfIn PDF document text
- https://megacook.pt/site/upload/file/tajug.pdfIn PDF document text
- http://nincity.de/inline/file/58397744376.pdfIn PDF document text
- https://globalybm.com/ckfinder/userfiles/files/1632310713.pdfIn PDF document text
- http://falconltd.pl/cache/file/45376295522.pdfIn PDF document text
- http://mistral-paints.cz/userfiles/files/31526152291.pdfIn PDF document text
- http://musiclivemarsala.com/userfiles/files/16642697870.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161418c65d5f47---23694010687.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16145bf7084891---651757035.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_off0000d796.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD796 | 10856 bytes |
SHA-256: e63b7bfc1c8875847c24a13d5b69a72aa6b2cf51936920157ebae070fc2aa8cc |
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font_01_sfnt_off0000f040.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF040 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010852.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10852 | 17316 bytes |
SHA-256: bd14914d657efe56f6262479957fd4e6b0eae6611f200253b609182888b49806 |
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