MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to malicious content. The document body is unreadable, but the heuristic firings strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://hzbmsj.net/images/upload/File/40442160650.pdf
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f087d7519493d6986b54d2242c237198/bamibawejavanulesufatin.pdf
- http://agisma.ru/files/pages/files/14406711596.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161030b4b1c6f9---xokepetajezafo.pdf
- https://ehotelgateway.com/bot/ckfinder/uf/files/7336281253.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/aede6a762dc04b963173ab79ddba38a5/dezubegamas.pdf
- http://trongtinpc.com/luutru/files/43150941414.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/bb4288c551588469b55594ddaff6f7c9/sizenadita.pdf
- https://ecoolteh.eu/galeria/file/92595462925.pdf
- http://hotelclinton.it/userfiles/files/30430362630.pdf
- https://barcelonacentromedico.es/files/galeria/files/tomatepu.pdf
- http://benthanhsgfarm.net/images/uploads/files/41416679132.pdf
- http://clair-environnement.eu/catalogue_dynamique/file/6885318746.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/0dddc74d08cdfdec008d7243734c60ae/vinovos.pdf
- http://lifecare4all.com/upload/files/gubejigakudunizufewaminov.pdf
- http://amongelite.com/ci/userfiles/files/27792526800.pdf
- http://madmojo.com/fckupload/file/vesumegoriregupemilowax.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160acf0c9089a8---tutepodapaxovusiwuw.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/er5r3gebvjmbc2t8o34milqhnj/wojigobewulejufe.pdf
- https://cleartunemonitors.com/ckfinder/userfiles/files/kogifomi.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/dpn61d2ge44hiaoourmncqe0re/taxevumiludiluto.pdf
- http://teaandtiarasottawa.org/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/rutuwebumiw.pdf
- http://hotelclinton.it/userfiles/files/zizizirudizebeweborazi.pdf
- http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/8frs5gfjqt5ruo3k7na51rr8v6eub05l/zatasevar.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/a5c9adbad27f21948f1c372bd3044591/letisodakix.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=s.t.r.o.k.e+assessment+pdf
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c547da87108---limuxizulotire.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_off0000e063.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE063 | 16792 bytes |
font_01_sfnt_off0000f87a.bin9c3b1a9fa30bab1c1432576d85b14739a93223684e57dc9aabc118f1cde979f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF87A | 10756 bytes |
font_02_sfnt_off00011139.binb9fc2c5756a0c85b4879846a3792db589e9bdedb90e89e37b9869714220e6733 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11139 | 18940 bytes |
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