MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users to malicious sites. The presence of numerous external URIs, many pointing to compromised WordPress sites or disposable hosting, strongly suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ntc-container.com/upload/files/rosewugalujaxuwoxujab.pdf
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/bca3dc758643d0d183745c5bf32a1e9c/78120499398.pdf
- http://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pibetusaxobokegax.pdf
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/bomimupudeluzofumemelogo.pdf
- http://www.knickmeier.net/images/pageimg/file/jegoduxakalepedobu.pdf
- http://aelma.com/sites/default/userfiles/file/mekas.pdf
- https://afgventuregroup.com/cfiles/file/38329559213.pdf
- http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/koredomovure.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed5b288c3d---88365045886.pdf
- http://arslanemlak.com/E/file/25273773794.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072fec7accf5---vodanetanadowupijivab.pdf
- http://pneusmarene.it/images/file/21198478531.pdf
- https://gruntbudowa.pl/files/file/19231346528.pdf
- http://myblindz.com/fck_user_files/file/zonunapuxavap.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e5961091c---motopumasuxizi.pdf
- http://metapolar.hu/tmp/50002183165.pdf
- http://garagehayashi.com/js/upload/files/gojagagu.pdf
- https://valve-toho.com/userfiles/file/nazezugemuken.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbc69d1ae70---92131705050.pdf
- http://alliance-vietnam.com/upload/files/bopupukonufetodute.pdf
- http://standartbio.com/fckfiles/file/noguzimupu.pdf
- http://technoculture.cz/admin/upload/file/68830736220.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=formato+hoja+de+vida+funcion+publica+en+word+editable
- 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_off0000bf1e.binf847f16ceeb612874008e2a34600cacae450060f797d78804e99ffadfb4717f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF1E | 16368 bytes |
font_01_sfnt_off0000e7f0.binf8e79d3b42c2231d5e8f60aee317c3951886699288d8b5c156b06b6b5476f87f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F0 | 11216 bytes |
font_02_sfnt_off000101c6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C6 | 16792 bytes |
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