MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable domains. The primary purpose appears to be directing users to external, potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://anhuizpyy.com/upload_fck/file/2021-5-5/20210505190636784564.pdf
- http://ferrogep99.hu/static/media/file/94180883126.pdf
- http://igabana.com/upfolder/e/files/20210621205531.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078b87698090---nosososo.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/16088e88766be4---lawebolepexabemuzusidimu.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/96299fa7c03c0ddd678d3fb2d12c2bc9/ketukerekuganam.pdf
- http://faradbox.pl/files/file/56485932609.pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/16084e2ee52d98---63503060979.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c07b2e00ec4---kufijigejovuzuzuvatawel.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/f8r378r55hlmnloro7ed2hkdrc/43917412708.pdf
- http://studiobaldizzone.com/userfiles/files/98226264286.pdf
- https://clumba-indoor.ru/files/files/jezovuvajuz.pdf
- https://farmaciasacoor.com/site/upload/file/1591308160.pdf
- http://relocationservicesgroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077eb592feb9---40722522404.pdf
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a6f9813ac---48456041956.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2711991b59---kodetulonikumezoxezebika.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16088747207562---3962009190.pdf
- http://cleangroupbd.com/ck/upload/files/kosekiturodenesovirofim.pdf
- http://shethof.ch/cgi-bin/dynamisch/file/giloxurowexofusowakola.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16082b450476ec---28404462189.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/8728dc00313de33f1c50695f60729170/motufeg.pdf
- http://ozona.pt/wysiwygfiles/file/12467182047.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/fac90bba6d01f1711c7858e8192cf674/67583865924.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=unlevered+and+levered
- 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_off0000e802.bin8942c836daa44ec14dc5302e3c95ccc01d704329a1e8a99188140da987fecab7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE802 | 9836 bytes |
font_01_sfnt_off0000fdb5.bin698b3d6ae493d35bbd5c49c8ed53fb98b44bfc18647fa96e0c9761aa542f1387 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB5 | 17564 bytes |
font_02_sfnt_off00012b72.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B72 | 16792 bytes |
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