MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of links, many of which point to external PDF files hosted on compromised WordPress sites. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of link farming, likely for SEO manipulation or to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing or trojan PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/pd6rktvn3do6k0ajlc5hs8s8r0/tovabevus.pdf
- http://tnslib.net/userfiles/files/sasakado.pdf
- http://kbchina.de/upload/lolupufelufowirujezadenow.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608487438ecb2---vijarixufa.pdf
- https://aronabritcan.com/userfiles/file/70935081597.pdf
- http://99hospitalitygroup.com/ckfinder/userfiles/files/jugazirigivazij.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/a75293e9c1d36d96219b9824b7b0e232/nejonepa.pdf
- http://9meclinic.com/ckfinder/userfiles/files/57334272296.pdf
- http://bodymindspiritconnection.org/clients/5/53/53f1eac0d8ee32431a47b4e1af774f29/File/50850604345.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160952d5f95175---zixeximudevigimaxo.pdf
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/160b46960dd1aa---pusefidovukowulenibidam.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c033f5f3c33---37978258358.pdf
- http://alliance-ltd.com/userfiles/64050670601.pdf
- http://bahtiyardishekimi.com/fckfiles/file/dirimixavosurik.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160945a2decad9---37831859762.pdf
- https://nexusmediation.nl/files/fasikuzifokikedirisimegav.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/3dda18da1e93c6a5c7788131504e72c2/zeton.pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160829e8f24560---26608667816.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/93266eead524b1e8cd5270565fb3786a/biromevopebudusit.pdf
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/50069a47ff92a27730bfd4c29b51849c/zuxavipe.pdf
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/ee5867285ce73ed65bb2e70edd0eb16e/94651149680.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/nje10lmg5foq4mncsls4dubo47/74717727302.pdf
- http://rolfingnaples.com/clients/a/a5/a5422f62036d2d393d866963e902351c/File/83006388654.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087658600dc2---dixudovabaneragujejeg.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=bsc1st+year+chemistry+notes
- 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_off0000df32.bin16415a3891c5ec945a945fc7f2c6af78551b1972486272b393e08f98a62c5c73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF32 | 10668 bytes |
font_01_sfnt_off0000f79f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF79F | 16792 bytes |
font_02_sfnt_off00010fb1.binefb6261e2a5b9cb58ad59a70acec6072f6f1d22510a6010845ce3d993fad27ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB1 | 17244 bytes |
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