MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains numerous embedded URLs, with several heuristics indicating they point to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is unreadable, but the presence of multiple suspicious links points towards a lure for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://rtquery.reitoken.org/Coaching123/images/files/nimapareduviguvebuwebosad.pdf
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/bowaxijotalebogemetuluz.pdf
- https://thucphamtruongxanh.com/Upload/files/94167682908.pdf
- https://chataigne-cevennes.fr/imgs/files/xebowaxo.pdf
- http://ji-tien.com/userfiles/file/2605505008.pdf
- http://biancoacolori.it/userfiles/files/27792371530.pdf
- https://stiff.pl/ckfinder/userfiles/files/futimoxaweze.pdf
- http://185.33.116.142/~bbyacht01/upload/files/11263435579.pdf
- http://domosplast.hu/files/file/novifexuw.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/231986d35aa1367e3c5b472fa09796d3/48277733828.pdf
- https://mysmartedu.com/uploadimages/files/sasedusirewadovalilas.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16132f3da76b92---pifonepe.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/iklrvunj883r730mrrrn5u6mko/kojasavave.pdf
- http://ventss.ru/userfiles/files/10431095299.pdf
- http://chekeeh.ir/basefile/chekeehir/files/nodasexov.pdf
- https://medicabg.com/uploads/wysiwyg/files/notanikoseriwixafusuganoz.pdf
- http://harrodsrentacar.com/public_html/userfiles/file/guwuvesotonafireretu.pdf
- http://mynotary.ca/sites/all/sites/mynotary.ca/files/68794722964.pdf
- http://atomicattack.com/atomic/fckimages/file/felorilunowusunejase.pdf
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pufurum.pdf
- https://zibarajabi.com/cache/fck_files/file/saguwabegi.pdf
- https://ppkh.net/userfiles/file/28365670293.pdf
- http://alrabbanoilandgas.com/file/files/6930708407.pdf
- http://lotusburbank.com/uploads/files/xibepizimoxedatifason.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=the+woman+warrior+chapter+1+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_off0000d679.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD679 | 16792 bytes |
font_01_sfnt_off0000ee8b.binee92324f78ba3d8e5c67ec05bcda5539c09994f5350f92a5d8be59108c27b48d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE8B | 16788 bytes |
font_02_sfnt_off000119af.binc24b4ecf7a7be85bd491dd71444f35704ca6851ad3821d0d654528aa363700f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119AF | 10772 bytes |
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