MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including ClamAV and an ML classifier. It contains a large number of external URIs, many of which point to compromised CMS upload storage or are hosted on disposable domains, indicating a link farm designed to redirect users. The document body is unreadable, but the structure and heuristic firings strongly suggest a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
Heuristics 6
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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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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://cfacgroup.com/uploads/FCK_files/file/gigil.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160708027ee2f7---wadororinukaxis.pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/29p0u5n3q6umntocudfjcd5fqv/71455800027.pdf
- https://immobilgold.com/file/nozowifabisode.pdf
- http://afghansolar.com/userfiles/file/39055231707.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/318bd3f91153942a048a9021e2c5e37a/vopev.pdf
- http://bahattinburyan.com/userfiles/file/958106210.pdf
- http://musiconthebay.org/clients/2/26/269dd5bc96e197da989a8dccc71442af/File/3570165707.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/egc5jfrca0dggsd6n7nljmq8cp/76515215390.pdf
- http://essiac.cz/UserFiles/file/malebe.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d688e29af78---vutipumumonazivadebezufad.pdf
- http://www.multigacos.com/admin/uploaded/fck/file/6820269605.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/34b8148fd13282b42ed66d736f9d22dc/zipuradegavasitigu.pdf
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5a637d896---relukijot.pdf
- https://festival.bg/fckeditorfiles/file/lemowefi.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/6r6icjq93s0a2q3t2bct61htqn/fafug.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607d37440b63e---luvonakuwasumibaluxumojep.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c505273106a---9145145819.pdf
- https://areicon.com/images/file/lezesejagowagi.pdf
- https://soportedevida.mx/ckfinder/userfiles/files/wubadiwuxonemufuxojaxaz.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160aba0165adab---sedidirimimejivelezilemus.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160992ee8b323c---95268927787.pdf
- http://personnelstrategies.net/userfiles/file/80420036346.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160894e4b2a924---68144202637.pdf
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/ugokkeklj2mae9vducor7f3vb9/dadekemowetijux.pdf
- https://etcbt.com/userfiles/file/65515076667.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/110icqfp5qo3k25dr2asstv5n5/44081151833.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=layer+list+vector+drawable
- 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_off0000c535.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC535 | 16792 bytes |
font_01_sfnt_off0000dd47.bin3fa361729eede9c395c9ae11c2508aada6aebcb8c48a1d84784d56783860742b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD47 | 17156 bytes |
font_02_sfnt_off000108df.binaddf350e8d0de23b7c755d0e643a0c1a8f5647885c9a7c4d963207831b56afa2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108DF | 10620 bytes |
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