MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to PDF files hosted on various domains, some of which appear to be compromised CMS uploads. The presence of multiple PDF files suggests a potential distribution or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://aptitudeclass.com/ckfinder/userfiles/files/zupew.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4a1ed450f2---tavafitofefatim.pdf
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/36887fd9c1fae2fcc4d7a93120af4862/pajinesaralanagukum.pdf
- https://dcoderesearch.com/uploads/zerelideledig.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd17e82ea3---tavabapipufep.pdf
- http://gibisch.info/files/files/29297914578.pdf
- http://studioarclab.eu/userfiles/files/dogamobamefedakafumopix.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1606e99efacad0---33807385228.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/mdsnvh62cr4k9plmqu6qvcq8bj/nupojabolativinulanu.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/660d5b6470c1a44d0bb982b7a69d87e6/pewoxuvasepubeb.pdf
- http://marcth.pl/media/fck/file/dojuluwamixix.pdf
- https://pbchistoryonline.org/uploads/file/peratakarerusirerisu.pdf
- https://swalaya.in/userfiles/file/23505134850.pdf
- https://tectrongim.com/uploads/files/nadimevivosuviv.pdf
- http://mwflower.com/upimagesfile///tibusizijagofazobob.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982063aeb6b---26779756146.pdf
- http://baodieptailor.com/uploads/2021-08-12/images/files/27427208923.pdf
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/juvolotozalisojes.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160756eccb5a18---66578025949.pdf
- http://quiltingacademy.com/fckeditor/userfiles/file/pelikati.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afcb1ee24e9---gelaginoxafonaxu.pdf
- https://sonntag-immobilien.lu/userfiles/files/dovimadon.pdf
- https://xn--faade-zra.ch/ckfinder/userfiles/files/20633857639.pdf
- http://anquocrealty.com/uploads/image/files/36548523414.pdf
- http://safedoorsystems.com/cmsimages/file/42990413869.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609df92f221cd---jumuvidukerutu.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb3a7f03e6---90351393316.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=double+negatives+worksheet+high+school
- 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_off0000e3e8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E8 | 16792 bytes |
font_01_sfnt_off0000fbfa.bin409a07c57415187e4939409cd5ce05b86f7527eb7538995709347f017634e316 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBFA | 18260 bytes |
font_02_sfnt_off00012a7a.bin856d1c9294c9c7f5805334bbda609d171c77102dc8cd0c1c9c36b07aa4a0a488 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A7A | 10996 bytes |
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