MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to potentially compromised or disposable hosting sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests it is designed to redirect users to external, potentially harmful, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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 http://hopkinshigh1966.com/clients/1/10/1054c114374c88b4a165e91103565d41/File/vetarome.pdf
- http://banquat.com/userfiles/files/4841885509.pdf
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/f3c8adf71c68c516e0379700df6d207d/41396652672.pdf
- http://narnivet.com/userfiles/files/kuzuvifukuvigita.pdf
- http://westmont1970.com/clients/1/1d/1d0046bffbd1a03ca32bb02538d2ceaa/File/34526156353.pdf
- http://csc0535.com/userfiles/file/20210618161542_s3x7lu.pdf
- http://egonseetour.com/FileData/ckfinder/files/20210623_1D8F2FC5FB74A7FA.pdf
- https://locoffice.ru/userfiles/file/davoxebi.pdf
- http://gildiamasterov.ru/userfiles/file/zigaduvomapexal.pdf
- https://zapret-rf.org/web/img/podborky/files/42193285849.pdf
- https://codecs.ro/images/file/nefunepolojif.pdf
- http://womenscouncildallasarboretum.org/clients/85748/File/rivaremobu.pdf
- https://its-bulgaria.bg/files/file/81679627250.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081f384901fb---57409323735.pdf
- http://grandchainfamilyfoundation.org/clients/85333/File/modefugigizodegiwafo.pdf
- https://hirurgija.me//files/98470853705.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/11da0aa14427a6daca25883fe7233a4b/17406261796.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cad2fac161---31428536012.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/3ca6a34623aaf9016f2f5a5bbd9c86c1/70991896440.pdf
- http://altelaw.com/uploads/image/file/38597663063.pdf
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/67c3pvnm2lege0batvls50nu2i/56330541236.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c70065b397---bibis.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/5dd4339d2adb5f6571a763868017e24f/65666550986.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=all+about+love+bell+hooks+chapters
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f17b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF17B | 16792 bytes |
font_01_sfnt_off0001098d.bin2908fb67ba33a866777006d95d5c3acce49e8acf4fa76aa9032ffe1489decfeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1098D | 16896 bytes |
font_02_sfnt_off0001352c.bin973702e97f307463e76cc89b58d73624f9d6a044c08d48f1fda73d18ebb6970e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1352C | 10652 bytes |
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