MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, several of which are hosted on compromised WordPress instances or disposable domains, suggesting a link farm or phishing lure. The presence of these links and the overall PDF structure point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://medvor.ru/uplcv?utm_term=what+does+monochrome+mean+on+a+printer
- http://tatvideo.ru/ckfinder/userfiles/files/domidewagitenoxo.pdf
- https://studiecarriere.it/uploads/file/56214182823.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/455f540c178762d706dba4aaa3467c99/77192158611.pdf
- http://cn-biyoute.com/d/files/murasilonaxidoxoset.pdf
- https://kingbakerypans.com/userfiles/file/34173974923.pdf
- http://bhk-aindling.de/userfiles/files/vodir.pdf
- http://rosabaum.de/web/editor/files/fixexijodamiwujelez.pdf
- http://lovesenergy.com/file/botamem.pdf
- http://cokhihoaiduc.com/uploads/files/vuzobujuwolaren.pdf
- https://commonlawhouse.in/userfiles/file/31204448322.pdf
- http://warehousetraining.ie/images/62090150180.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/309622d06ba981bd4da9ed61c25bc9e1/pawapifesafuxofaz.pdf
- http://merwepizza.com/upload/file/8978549406.pdf
- https://partnermind.cz/images/files/43886056100.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/sb4nov7vbajcurm24nt1nctk52/wabonokemadab.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/4ac2abeedeb0d7b3cf03da20024cd5b9/sugemodabufatelamigave.pdf
- http://blbr365.com/userfiles/file/1632049261.pdf
- https://ehlibeytalimleri.com/resimler/files/17955649815.pdf
- https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/kulajebexelagidosem.pdf
- http://tiszaladany.hu/upload/file/kogagabujapo.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161385e0c651b3---retimizojirujefokifawekur.pdf
- https://westhygiene.hu/editor_up/winizotexunuberofunodegif.pdf
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/069b15f0420f21d97aa5c47ee5a1646f/16713597756.pdf
- http://racecross.com/upload/edito_fckeditor/file/80730919969.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_off0000b7da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7DA | 16792 bytes |
font_01_sfnt_off0000cfec.bin47ea3fbc53ccb670a7b9e30a8da2ea54ae6b402d43107a789c623a1c7c1d931b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFEC | 17560 bytes |
font_02_sfnt_off0000fd07.binbfce6714c7309eeb17de3396b018835c2cdc51c5f0b8890dfaac6a31d6a0ecea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD07 | 10728 bytes |
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