MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, with one pointing to a compromised WordPress upload hosting another PDF, indicating a likely multi-stage attack. The embedded URLs and the compromised CMS upload link farm suggest this PDF is designed to lure users into downloading and opening a secondary malicious file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9800
Heuristics 5
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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 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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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://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/p323v74fqrq48rebs3ef56gq81/43051838892.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608938ee70c7d---79702459647.pdf
- http://flexa.cz/docs/file/bobenalezobenuwazefor.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607a0ee8e4a13---47913937354.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/t5cqj8itgfc2vo71qon8tviui0/56053811034.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/eeb63f2962fa5a26dce3435bc73b9563/wikedibogatewuligatopusos.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/1cad378a271db4d2d711f918283ad21d/74826251526.pdf
- http://itineraire-consulting.com/ckfinder/userfiles/files/muwanor.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb72f25933---8306808844.pdf
- http://humanitool.ru/userfiles/file/voxoxiripimama.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af8c6c22be2---jofapuzawuzogamufi.pdf
- http://cityhighclassof77.com/clients/9/9e/9ea685038b5a197d2022a69b8c6b162a/File/83142957381.pdf
- http://alpanelektrik.com/depo/sayfaresim/file/jefexapotanusixaziveput.pdf
- http://clubselectionvoyages.com/images/file/dotiruk.pdf
- http://ideas4mypool.com/userfiles/file/bemamudorunevowunira.pdf
- http://adamlegal.com/userfiles/file/48767546542.pdf
- http://xn--80age2amlc.xn--80adxhks/pics/images/file/fuzowuxopexet.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160855dc99e9ae---14954670739.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/fc4b95f336c39b76812b1de7a7665e1c/matexegoz.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/f7c67bbcc1c5a8d1c386f2a1d304a601/jogotexovinoka.pdf
- http://maychamsocda.vn/images/userfiles/file/39156487374.pdf
- https://mimpishio2bet.com/contents//files/gederoxe.pdf
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160870ca592510---91769057181.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=love+in+relationship+2+by+goodness+shadrach+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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00032c49.bincd5daf2e8b25db4da0ec33200be19012d1fd1f6b5a004a29ff3371119da8b6d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x32C49 | 11296 bytes |
font_01_sfnt_off00034665.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x34665 | 16792 bytes |
font_02_sfnt_off00035e77.bin4d59900b131e99399fa6bb129b22f7d0654c113f78a6e3ee673264df9a85e425 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x35E77 | 16312 bytes |
font_03_sfnt_off0003884b.bine4cd408809e3901c9d96cd85f992fb2462a12d6dae69aaa0c8ba71b1bc394209 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3884B | 16500 bytes |
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