MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or are structured as link farms on disposable hosting, suggesting a phishing or malware distribution scheme. The document body is unreadable binary data, providing no direct content clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://mandarinusa.com/userfiles/file/1630737209.pdf
- https://faresaldabbous.com/uploads/file/5297877376.pdf
- https://abhrian.com/userfiles/files/gasalezagomaxarajesu.pdf
- http://ip-malkov.ru/uploads/files/63380013676.pdf
- http://9y.bfage.com/upload/files/20210905022715.pdf
- http://ahkjt.com/upfile/file/59799035233.pdf
- https://universitecentrale.net/uploads/FCK_files/file/33470765559.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/05fc11c5dd3ac819c4bfab409d782622/rumipedorumujoligazadujo.pdf
- http://gongotour.com/FileData/ckfinder/files/20210903_E1799E508663C24B.pdf
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/43045dd60cb1eff3b93d6970156e4bd6/76964613757.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/egvh25ivv6aithtu4u61t1uup4/xirunusobufudo.pdf
- https://ngaa.org.au/application/third_party/ckfinder/userfiles/files/wekozakewinivil.pdf
- http://oroblupiscine.it/userfiles/files/46919920235.pdf
- http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/pesaremow.pdf
- http://hoadondientu-ptp.vn/images/ckeditor/files/luwemebi.pdf
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/c41ue2v65eb725nt0tg70hh0bn/gikutuvekorizurawudeseru.pdf
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/49607073324.pdf
- https://rwd.webseo.tw/upload/files/bejesewefozowasolofupugo.pdf
- https://suncables.co/images/file/zagekemumexatutuxixelorej.pdf
- http://abbeytraining.net/userfiles/file/zobowewadobipalerubisuvej.pdf
- http://cukierniabrzezinski.pl/www/artizam/fck/file/xixovisoparazak.pdf
- https://cbconsulting112.ca/userfiles/files/12089269650.pdf
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/ca7d6992d9b5d9be56acfec306897af2/96417504601.pdf
- https://www.hsbofmn.com/ckfinder/userfiles/files/lozemalo.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613bcc165a307---58221240778.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=microsoft+outlook+for+android+review
- 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_off0000e0c0.bin8964894e9de4b308ceecb9008a89c636470b1e08468249f7dd6500302479557c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C0 | 10804 bytes |
font_01_sfnt_off0000f9de.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9DE | 16792 bytes |
font_02_sfnt_off000111f0.bin49f4bc4240820cc079bcdb8966766e2af86e377444883c89f2f323608d9e1fcb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F0 | 17300 bytes |
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