MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple links to external PDFs hosted on compromised websites, indicating a phishing or malware distribution attempt. The heuristic 'SE_REMOTE_SUPPORT_LURE' suggests the document instructs the user to install or connect with a remote-support tool, a common tactic for social engineering attacks. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
Heuristics 8
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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://okazdedziecko.pl/_files/Media/file/94827790619.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/d2f50c07bb5f56eb303a9481b5db5363/ketagugejapevip.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/d4f6fc73b20d2305569b7051f4717d90/sakajos.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2199b86ed---63951501182.pdf
- https://intellicapital.in/ckfinder/userfiles/files/jubukolu.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab763b1bf5c---12263941520.pdf
- http://engroupe.ca/aym_image/files/kuveto.pdf
- http://albarossa.jp/js/upload/files/wewodiribi.pdf
- http://adaviestransportltd.com/userfiles/file/28280297335.pdf
- https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/d6387aca30a5190882a9fc8196ca7dc3/kexorupubolizel.pdf
- http://biurod9.pl/public/userfiles/file/4842916374.pdf
- https://airshow-bg.com/file/29577013751.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a09d34ea6db---82352865940.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/6899a25fc5d31ddcec2844801743e7ba/munezusede.pdf
- http://adabaskimerkezi.com/upload/file/dijalezogukemaze.pdf
- https://ocw.tw/uploads/files/5418806097.pdf
- https://machnhaduong.com/images/uploads/files/sunoxe.pdf
- http://axiomestates.com/userfiles/file/vavivele.pdf
- http://globalcenterhotels.com/bot/ckfinder/uf/files/3588593531.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606f68b654370---60150723856.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd4a1c994b---59393767700.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/9659573428.pdf
- http://vienkiemis.lt/app/webroot/uploads/userfiles/files/77310236910.pdf
- http://mobilesamara.com/img/files/file/dufavabigipiratemobosobel.pdf
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/542019d3bdcf06134153516a6736d73e/88759145142.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=extreme+introvert+test
- 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_off00010069.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10069 | 16792 bytes |
font_01_sfnt_off0001187b.binffd2ed734dea1cf955d8f387992e32f74aa6b80f6025516fb0b47f4373fb9e1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187B | 17456 bytes |
font_02_sfnt_off0001453b.binb2063b415c485ab2c722ad4de9fb6abd483ac98b445232278a70b91d3a5b9570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1453B | 10212 bytes |
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