MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users. The presence of external URIs and the 'compromised CMS upload link farm' heuristic indicate a strong likelihood of phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://crysiq.ru/uplcv?utm_term=slow+motion+video+maker+apk+download
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1c9040810---17468394156.pdf
- http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/paxenita.pdf
- http://jn-zhsc.com/upload/wusifojar.pdf
- http://ngor2-3.com/file_media/file_image/file/68495888185.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/7791nhajhvonaq9vac6ifrcru0/mumopobikusinufinizeji.pdf
- https://bellcera.60km.com/upload/files/xufosaxurewav.pdf
- http://cukrarska-vyroba.cz/UserFiles/File/rejaxipebas.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/7f218cac6cd54c00821308934955a8ea/tepimuzekesedumom.pdf
- http://iact2001.com/userData/board/file/tulukumil.pdf
- https://protum.se/file/31592979061.pdf
- http://lukinserv.hu/file/82614536338.pdf
- http://ressourcengarten.de/azubi/userfiles/files/88217598715.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b802285983---megavo.pdf
- http://rambud.pl/uploaded/file/93807203625.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613b684032d6f---36997643944.pdf
- http://diysmart.net/userfiles/file/rafivojogamav.pdf
- http://kesherisrael.com/uploadEditor/files/gagibizid.pdf
- http://edu-soft.ru/site/htmlimages/file/budenututejodeg.pdf
- https://chowdhurytourism.com/ckfinder/userfiles/files/76302177785.pdf
- http://carmakers.cz/userfiles/files/79356010035.pdf
- http://gaziogluenerji.com/images_upload/files/ronuvosovomujaluwur.pdf
- http://panova-art.com/files/file/4627657901.pdf
- http://zeguvietnam.com/uploads/ckfinder/files/77401736859.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_off0000db52.bincaf029b0da92bf24c9be49aeeb8d986a8de378536301053712d10efbd4901887 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB52 | 10704 bytes |
font_01_sfnt_off0000f3e7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3E7 | 16792 bytes |
font_02_sfnt_off00010bf9.bin3b618b3fa4bc8e971f6c43e4388e216107d60e197457da5db75c8137c77c230b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BF9 | 18544 bytes |
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