MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code or redirecting users. The high number of external links, many pointing to compromised or disposable hosting, suggests a phishing or malware distribution campaign. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 7
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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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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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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. 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://coretry.ru/uplcv?utm_term=change+notification+sound+for+each+app
- https://albawadiroad.com/userfiles/files/megowifedoxofezanukitike.pdf
- http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/91363363151.pdf
- http://ngoinvest.com/uploads/ckfinder/files/tadaruvetabiselogibon.pdf
- http://b40555.handyfriendship.com/upload/files/miwedovexokilazi.pdf
- https://indiantiffin4me.com/nbloom/fckuploads/file/pamozejazi.pdf
- http://wedding-box100.com/uploads/files/202109131151335878.pdf
- http://kolbiko.com/images/uploads/file/madiwobakuvifibisuj.pdf
- http://sumisaedu.com/FileData/ckfinder/files/20210904_B9B7143C613F0F0E.pdf
- http://studiomanzella.com/userfiles/files/77983927817.pdf
- http://ladyvenus.it/userfiles/files/53230398736.pdf
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/318a1f00dd4a29a4565f254465de2352/32236541844.pdf
- http://dryoucosmeceutical.com/userfiles/files/80293097769.pdf
- http://netart.hu/userfiles/file/dinadamurisaniki.pdf
- http://swaptoys.org/ckeditor/uploads/files/nagudena.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-9-9/20210909065635689053.pdf
- http://www.rajpuc.pl/pics/file/44356374590.pdf
- http://klubbelgickychobrov.sk/editor_uploads/files/fosamajefusuxe.pdf
- https://ppntassone.it/dati/upload/file/94487620518.pdf
- http://mywayrtk.org/userfiles/file/18250034959.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/gk7ko8jb3vfke2p05toh24cbuj/62101913335.pdf
- http://www.vishalsahni.com/public/ckfinder/userfiles/files/33596617879.pdf
- http://shacklefordlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xuzawibubamabalotonidipal.pdf
- http://nomayaku.com/userfiles/file/vafif.pdf
- http://kraemer-duennebacke.de/files/file/purepev.pdf
- http://dj-maily.com/uploads/pages/files/numototigafa.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/1313eff71a3b32e5727aaac59fa8e483/roxesib.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c43c.bind023d04d3ed634cd62eece689068692841f8757f94c580e1520ba24fa4b50ed3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC43C | 17480 bytes |
font_01_sfnt_off0000f1d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D0 | 16792 bytes |
font_02_sfnt_off000109e7.bind1a9112bcc28bdac09d67931af8f4852e09d6d87777a2aee3b5e1e182ab4ca89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109E7 | 10984 bytes |
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