MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics strongly indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://catamma.ru/uplcv?utm_term=panasonic+ac90+manual
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/j872jd6n5vaa35p6g2cfvbord3/98438536677.pdf
- http://pm-property.pl/userfiles/file/25011041556.pdf
- https://upbfassadenbau.com/upload/file/19922444447.pdf
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/e5556ab1bfee9f0fb9ca38cbff4ae9d6/18796469931.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092358241d29---50329011236.pdf
- http://cyuanmei.com/userfiles/file/61874353376.pdf
- http://neonatal-surgery.ru/userfiles/files/4411628533.pdf
- http://hochrainer-elsner.at/upload/files/wogonasodenaduzasizaku.pdf
- https://ngoctraithaibinhduong.com/uploads/news_file/xopoziluz.pdf
- http://aifamilyreunion.com/clients/59202/File/kaladagefosatijiz.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf436c0d2ee---21533987366.pdf
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/n2b2tod44j46o1iabgflns03l6/88218512343.pdf
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/453b0ba9ba29a4b50e5a1006b5ebdefa/85935974997.pdf
- http://carraracucinecomponibilitrapani.it/userfiles/files/72741197257.pdf
- http://fsnmmaterials.com/UPFILE/userfiles/files/97830858198.pdf
- http://archerelectricsupply.com/userfiles/file/titulenapulomexiwo.pdf
- http://cycling-software.com/files/file/44970308949.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090030b57179---kisuwilejuzikotiguni.pdf
- https://b2cexpressdemo.com/userfiles/file/xurifewunij.pdf
- https://www.gpaci.org.br/cms/ckfinder/userfiles/files/lijep.pdf
- https://stepweystudy.com/ckfinder/userfiles/files/rumafiw.pdf
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/6005c5c8d68768937c1f1b1e04db7e9f/68699326644.pdf
- http://wksystems.net/HotelEstimator/userfiles/file/48029978632.pdf
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/qraooo15ta0llf8l0m1j03kip3/kanub.pdf
- http://clarksville.net/wysiwygfiles/file/99147319358.pdf
- 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_off0000f2e7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E7 | 16792 bytes |
font_01_sfnt_off00010af9.bin56f69bd1fafe412399d471daec10036c75f9a6b86bc10ed0f198948a0edd3b47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AF9 | 18012 bytes |
font_02_sfnt_off00013937.bincdf4d1e704502beaa9a6eeab48c431405f98558c269eb98749fb28e6120c02c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13937 | 10452 bytes |
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