MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external websites, many of which are hosted on compromised CMS upload directories, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. No scripts were extracted, but the presence of numerous suspicious URLs points to a likely attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 7
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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 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 http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aac1ec933e9---vudinafimipeb.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ecbd34c7b---98247873692.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160737653e8888---nubuduwu.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/b6c4966364fbb2246d81ab07d44915f8/jukewaxujowiwem.pdf
- http://casaatlantida.com/userfiles/file///12927080101.pdf
- http://rungruangsteel.com/public/upload/userfiles/files/86682512892.pdf
- http://yunnanyingxiang.com/ckfinder/userfiles/files/jokanedomejugopopemevubi.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079e6efd741b---zosititubevesu.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160c26f2d675a6---35658166528.pdf
- http://k1a.ru/images/files/file/29927103331.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608a06d9a5ea8---65143650821.pdf
- http://nanumed.ro/uploads/files/17681011273.pdf
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/a62bm1l1r5h7m6forossgcauge/18021077059.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/2931f8fea0990f9709376af323e3bb8a/vubonudaru.pdf
- http://xboxheerlen.nl/userfiles/file/18160158208.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/4c72dbe34beaec19bba3e67906aac580/91082767078.pdf
- http://ledesmasportsmedicinesavannahcentury.com/clients/4/44/449a5b3489ef279447e90cf6cdd72f1c/File/josivepovabadasa.pdf
- http://anhuicrew.com/upload_fck/file/2021-5-1/20210501101814672153.pdf
- http://glina-master.ru/admin/ckfinder/userfiles/files/fikam.pdf
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/9894bcecbbb439622a0dddaf921c3310/zugevijeregabuwofado.pdf
- http://thongthien.vn/upload/files/fuxuwapebalogezilate.pdf
- http://fonnepal.org/userfiles/file/43737615891.pdf
- http://dxczx.com/ckfinder/userfiles/files/20210617_192808.pdf
- http://absolutelyneon.com/userfiles/file/90202716301.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608278e3d41c8---pakalu.pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/6b56ce46857828bdca09fa1787aad7bb/4823474707.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=free+24+hour+weekly+planner+template
- 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_off0000ec02.bin4389f843de046b8854306154dcc2b6549d3ed39e7f8a25fe081efa2b60cabe6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC02 | 17912 bytes |
font_01_sfnt_off00011ad4.bina3f2a6fb1e6001ab929d48fb5d3e82357d4ad26b3786ab2badffb60bcf12680e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AD4 | 10824 bytes |
font_02_sfnt_off000133c6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133C6 | 16792 bytes |
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