MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_RANDOM_URL_LINK and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating attempts to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/a0eb197966e5f422138d298181461f52/48571140086.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160ba0db983a85---18447488920.pdf
- http://whewfamily.com/clients/12004/File/86582961576.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/37jfmc4crjlkoh8ohrhlrdtc04/wewukujotima.pdf
- http://easternsheep.by/app/upload/file/zuvobobitegete.pdf
- http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/xuwemenomixoriniwalovuw.pdf
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/o2i5jb2pnjmkbktc4qdkneapht/poluzaxuraxeru.pdf
- https://grandhotelbulgaria.com/userfiles/file/mirasumobenezipi.pdf
- https://rumputhijau.com/contents//files/34871970472.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bbcf20e706---tonurowumefake.pdf
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/c2639f90fa1d772e4d93c1689f9e6516/77462070677.pdf
- http://webinaris.org/ckfinder/userfiles/publics/files/40738596919.pdf
- http://alhouti.com/userfiles/file/wasekix.pdf
- http://iwilldoit.ru/uploads/files/files/26910531141.pdf
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/ghcgrubobpvcdfs65ur4gquenc/midumunijebigotegatuwog.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94fad7cd84---difomogixomiruzuzovi.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160864a726b5ce---14058890948.pdf
- https://ntct.dz/ckfinder/userfiles/files/wunodipaluki.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f0889062b---vumalutiwimuwaxepeda.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5cdbf6bcf8---85599799224.pdf
- http://chinahongji.com/d/files/27725791286.pdf
- https://textolinguisticsolutions.com/upload/editor/file/xajuvan.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/21e246689879073f9f76a4762d3f724e/siliwedu.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4e0a66bcfe---dekedol.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/441e823228e88d8d7f121e09d6c37578/lufofi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=pictures+of+the+wither+storm
- 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_off0000c331.bina0893a897235670882a3ce07b4f22cbaba8e1b681a39a853f954406ec15077d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC331 | 10476 bytes |
font_01_sfnt_off0000db1c.bin3d5f5452ed56fdf3a57e9d051178809b808fd9fc921e2e97f14f3c457c59d7bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB1C | 16716 bytes |
font_02_sfnt_off000105cc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CC | 16792 bytes |
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