MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains a link farm pointing to various domains, many of which are associated with compromised CMS uploads or disposable hosting, suggesting a tactic to obscure the true payload delivery. The 'SE_INVOICE_LURE' heuristic further supports the phishing pretext, aiming to trick users into interacting with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://mdsalon.ru/img/lib/file/xodegokafokovopabuw.pdf In PDF document text
- http://mesahighclassof64.com/clients/874441/File/85794179434.pdfIn PDF document text
- http://kibbkw.com/uploads/file/92355106047.pdfIn PDF document text
- https://www.twibiotech.com/plugin/ce1/ckfinder/userfiles/files/wadetunufiludonanolaxafek.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160becb9b481b6---govigokigamaluzararaxaleb.pdfIn PDF document text
- http://casaledellasignora.it/userfiles/files/bagibuvemexobimonufiz.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/pediwadonajiko.pdfIn PDF document text
- http://tinnaduraflex.com/uploads/files/peluzosunenotaruxamuma.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/cnav9m3avcfprli9nr3eu68eca/8402506217.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/9cnvgfu6a6vh07kb8vp6cfesm1/6177400730.pdfIn PDF document text
- http://sewakendragroup.com/userfiles/file/9269879403.pdfIn PDF document text
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160857aa8d04f5---23472156968.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/wupixugilidatutarunexifen.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/bf73db0b0c113d948344cc4041a1a4c5/rurerejuluteveperaj.pdfIn PDF document text
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec11aa04c1---dotikapel.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16098dccbaae45---33820932139.pdfIn PDF document text
- http://chono.mn/uploads/userfiles/files/kirizixijeko.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/5207387e6b508a54002e357989a3bb33/beluxa.pdfIn PDF document text
- https://clubesolbra.com/uploads/files/61576082589.pdfIn PDF document text
- https://ciar.vn/uploads/image/files/18239877167.pdfIn PDF document text
- https://makanbanyak.net/contents//files/9239840385.pdfIn PDF document text
- https://aedwea.com/upload/foto/67673161843.pdfIn PDF document text
- http://goodtraefarm.com/ckupload/files/fuginetafosojufiniguta.pdfIn PDF document text
- http://suankaew.net/upload/userfile/files/zalalogix.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+to+fill+out+a+receipt+book+for+cashPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cc37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC37 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e44e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44E | 10880 bytes |
SHA-256: cb8583f5972b789c45c9ef5392ab443264b0b5aa8ea43a7d8ba223ce43b13780 |
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font_02_sfnt_off0000fd69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD69 | 17512 bytes |
SHA-256: c07f24c23861f575408c969dea2a43acc03855833ae7f50a6e6e2d217e52788b |
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