MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a link farm pointing to numerous compromised WordPress upload directories and disposable hosting sites. The embedded URLs suggest a phishing or malware distribution attempt, likely initiated via spearphishing. No scripts were extracted, but the PDF structure itself facilitates the redirection to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://oniceh.ru/uplcv?utm_term=sims+4+how+to+give+baby+up+for+adoption
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092e6cad1633---49537632307.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609831f163f1c---kavusuti.pdf
- http://crackershrimp.com/file_media/file_image/file/79672512089.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/7jnhfdrjvu5rs521n03bt5q26h/sumetav.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/0afc99b936b90aa275468d9f8e3ee732/46598638237.pdf
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/81b57d0646725860b794e1d2b1bde66f/91867803612.pdf
- https://brickbodysupplements.com/newerac2c/userfiles/file/zolodowizoz.pdf
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/403880024b7f20aac5c45e3f19c4a72f/nikorebebovuginovibufeta.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/r42c9krl0lnsj0auh1am8b68sn/beniviliwisenilevino.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ced2aaa43e---52621345274.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608655488534f---79607614176.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/abfa31f6683337574fbbc515cd7199e6/bujesogodumeput.pdf
- http://alhouti.com/userfiles/file/98000959455.pdf
- http://ural-kip.ru/admin/ckfinder/userfiles/files/16891459911.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a38e888ddf8---zunaf.pdf
- http://i-daa-wl.de/userfiles/72183035944.pdf
- http://worldcar.jp/userfiles/files/dekubo.pdf
- https://systematix.pl/userfiles/file/10241602252.pdf
- https://ajwatravel.com/wheelmarine/userfiles/file/xobipag.pdf
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/iqmmde5pfce97t55k4aibtrcrf/75045535204.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/559dfb94ba023c55ba412efd0b0dd96b/86167874465.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607b22076a437---32377542888.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_off0000fa29.bin24e00191e467603b42f7ae30f8dc292c3fa7dad83344bec6dd82875c66e2378b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA29 | 17588 bytes |
font_01_sfnt_off0001281a.bin7da7e9396ae0ae7997d79f572601a0c00cffa0e15c8531219f94de2e58fb2220 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1281A | 11556 bytes |
font_02_sfnt_off0001430f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1430F | 16792 bytes |
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