MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised websites or disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to malicious sites, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 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://laborke.ru/uplcv?utm_term=types+of+x+ray+machine+pdf
- https://autonoleggioassereto.com/file/fugemusadavuwudi.pdf
- http://music-summer-courses.eu/upload/files/98719566882.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160f93bba6f2d2---98867497660.pdf
- https://oteaexpert.fr/cite_imgs/file/32932278173.pdf
- http://gasthaus-steinkirchen.de/img/editor/file/99537120225.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613863a232a79---ruxamowavoletemofasepawir.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16070271f82873---21487284706.pdf
- http://theettiares.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/89569654777.pdf
- http://universe-micro.com/upload/files/20210805_182303.pdf
- https://506hlapeta.com/files/file/xujidokubepilozeledof.pdf
- http://rmgoals.com/userfiles/files/gumarasudoj.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7f5f7c19d---kelaxajoxawa.pdf
- http://musclecar-taps.com/js/upload/files/75072671806.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c5d4ad700---3603668143.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/v1h7hi0hcfmtvpm2an58gjdre1/65519574373.pdf
- http://newbusan.net/FileData/ckfinder/files/20210706_145EE6A13A584768.pdf
- http://utpcomp.ru/uploads/files/givege.pdf
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/9ceb180695669360b49529d63098372e/32941704818.pdf
- https://viadagio.be/userfiles/file/medigux.pdf
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/67cd82d10220fa600c0ebedc77fe112c/73760661564.pdf
- https://zaindu.drogomedia.com/files/galeria/files/22678351447.pdf
- https://tangente-mag.com/img/file/16543125071.pdf
- http://pnktools-th.org/ckfinder/userfiles/files/4594063856.pdf
- http://originalcheck.it/public/img_admin/file///fusaje.pdf
- http://dilimkebab.com/userfiles/file/75513928587.pdf
- https://medlineplus.gov/xrays.html
- 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_off000100c4.bincd269796a8bf362c4292d7264fb86a19d9dd42ef8a60636b13e83ab506780915 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100C4 | 17904 bytes |
font_01_sfnt_off00012f56.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F56 | 16792 bytes |
font_02_sfnt_off0001476d.binf2df3d6bdcdd68a4dc970f1f10f9a94a7e6c222e184d2ad8d6b3ab4993c6ff02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1476D | 10920 bytes |
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