MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and heuristic firings strongly suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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.protectakoteasia.com/ckfinder/userfiles/files/1549825509.pdf In PDF document text
- https://smartstone.ca/userfiles/files/3904786750.pdfIn PDF document text
- http://top-caster.com/userfiles/file/bujukatojudi.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/638997637a84bf7a8b68665e59c2c9d1/11389289086.pdfIn PDF document text
- http://xn----dtbhwhggdaoqfh3d.xn--p1ai/media/file/65712627367.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614901a84182b---82751691552.pdfIn PDF document text
- https://tarzminder.com/resimler/files/xegomupobuviwiwe.pdfIn PDF document text
- https://theurbanthinktank.com/files/25673031314.pdfIn PDF document text
- http://mgtofubbq.com/uploads/files/rukasidawotirukimodox.pdfIn PDF document text
- http://architettobotteonpierpaolostudioabacus.it/userfiles/files/89855878692.pdfIn PDF document text
- http://terezmisszio.eu/files/file/59277850789.pdfIn PDF document text
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/uhe96ev2gelvprdv37dnamsine/79315262242.pdfIn PDF document text
- http://chiari-web.com/ckfinder/optimist/files/tinavopufavobi.pdfIn PDF document text
- https://globalybm.com/ckfinder/userfiles/files/1630655351.pdfIn PDF document text
- http://kayapalinakliyat.com/file/55626168968.pdfIn PDF document text
- http://alhouti.com/userfiles/file/vatolofab.pdfIn PDF document text
- http://apartmany.cucoriedka.sk/data/files/zuzisiwamikumajowum.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9bbbdf67b---20958495988.pdfIn PDF document text
- http://davidhammerstein.org/userfiles/file/3737099076.pdfIn PDF document text
- http://generale-bureautique.fr/gdb/files/file/39356681931.pdfIn PDF document text
- http://bjsddesign.com/filespath/files/20210905133303.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=unblocked+games+roomPDF link annotation
- http://s292376414.onlinehome.fr/datas/imgmail/file/jizimi.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_off0000b143.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB143 | 10764 bytes |
SHA-256: 3926a682d119de26efbd8ec20795f7424defb2c478b6deafaeb8c85137fce2b4 |
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font_01_sfnt_off0000c9cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9CB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DD | 15992 bytes |
SHA-256: fd95965ea13e99bad203ca6054f9882911353b879a0a4a84622cfe38b9d8619b |
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