MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised websites, many of which host other PDF files. This suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to exploiting users through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8e6368bb9---sivebojokagejakonubefija.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4d6b9037a---dasefipuj.pdf
- https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/siniwalutedekagalikosowur.pdf
- http://31kouqiang.com/userfiles/file/1625861094.pdf
- https://usssecuritate.ro/userfiles/file/54752402965.pdf
- http://wallsfamily1912.com/clients/876683/File/devew.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/41c21cbc37685258eca4bb4951d6aa8a/zisavatuxegates.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/0p9ne9heib0glu88roce4e427n/silitufekusufix.pdf
- http://archerelectricsupply.com/userfiles/file/lasevapajalibewis.pdf
- https://ludifrance.fr/userfiles/file/10573978705.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f03def00f---dekalipago.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/9n1sjaiug56bdc8fkmp322pjc5/9366895535.pdf
- https://corpusbg.com/files/fck/file/gikeb.pdf
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/6c0740fd8ce094022ecb556bb4b2329c/69123942700.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16072e5724fa02---damikamegefepesi.pdf
- http://rymwid-training.com/userfiles/file/fabatenadososime.pdf
- http://alibabashipping.com/userfiles/file/pivewikizugu.pdf
- https://anthonygillant.com/userfiles/file/jadewogukorawovufi.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/730b36d554eaa90dff1af497c434a0d2/dofixabebiselepow.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16095973ddcfe3---digofubibosa.pdf
- http://arkystudio.eu/userfiles/files/xujejete.pdf
- https://adasms.fr/userfiles/file/sabigetifodekamuwowudi.pdf
- http://xn--or3bi2da319p.com/upload/fckeditor/file/nizanudofi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=love+conquers+all
- 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_off0000c67b.bin02dfdb48f3bcd6c9c4d808cdbb4cfff72993fef22b637e64b481c8c2a2632a2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC67B | 10304 bytes |
font_01_sfnt_off0000ddd5.bin6a46f5573b18cdb07b6f8ce15d5a979fbd06787fce74c95e400f21ecc26bdfdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDD5 | 17648 bytes |
font_02_sfnt_off00010c13.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C13 | 16792 bytes |
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