MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download' button lure further supports a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://krisoc.ru/uplcv?utm_term=u232+p9+drivers
- http://1960whs.com/clients/7/73/73384dfd0d582a2861cf356c55c3c578/File/kudobim.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606cef37d2439---sakuxebojenag.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/e22762b809e4a54960c331a05b0e9985/25253707942.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/7m3lsudc7q3q9reljb0oboajv6/52159360267.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160abcc11590ef---68628465679.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/3d10efcbd79f36d2acc7199989a7b05e/matutukelu.pdf
- http://www.emailposte.com/pictures/puboxumivusowubujex.pdf
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/n74sddkg2h9gdi1vah6gn511uu/2689962316.pdf
- http://ampletrekking.com/userfiles/file/xopiviguf.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/19d52c0174554e1b12c37e5e05d564bb/73804804455.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/0c6e1fb28f9e8db7c7c4d42603c5ae4a/fetosifotelu.pdf
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/a0rs9pr70bgosngksrr78hcjoi/89565989493.pdf
- http://heyumpnd.com/userfiles/file/%5C/23762896780.pdf
- https://anthonygillant.com/userfiles/file/56860532156.pdf
- http://maychamsocda.vn/images/userfiles/file/tunal.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.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://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001d2f3.binc8f7977f7fbec3c7e35771f1485e567f4b97d7c8417613413a34e01d1746e4bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D2F3 | 4092 bytes |
font_01_sfnt_off0001e191.binf91c832ebfeaa5f26bd3a75c842281da3ef3dabddd4cdc15f1a0adc66188a5c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E191 | 5216 bytes |
font_02_sfnt_off0001f362.bin33ead4eb0a6bb2aedb2ad170768d79ddfdacc78aa02b8ce2dd6de75fd3e730d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F362 | 2196 bytes |
font_03_sfnt_off0001fd62.bincf56db2df3ce1b4722f7abd9d67c9d4bafe86b63d92d5f45dbb5e3b5347a5033 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FD62 | 13952 bytes |
font_04_sfnt_off00022b4f.binadee36bad5734962cdde9511dee88798e332fcc1cbbe0bfa588784522f596de1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22B4F | 16144 bytes |
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