MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of numerous links to compromised WordPress sites and disposable hosting, coupled with a heuristic for a download button lure, suggests a phishing or malware distribution scheme. The embedded URLs likely serve as entry points for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=aesop+fables+worksheet
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160d1989ea4e74---85390070050.pdf
- http://metall-press.ru/files/dirivilomojepazigot.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a28c69a0---35837787640.pdf
- http://xn--80aab8aioy.xn--p1ai/userfiles/file/xozajixigezu.pdf
- http://www.contal-farmer.com/uploads/files/xowijurubizarutixemad.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/89046865168.pdf
- http://maremio.ru/admin/ckfinder/userfiles/files/64023698976.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16111ee60330be---jesatiregurizagupovuro.pdf
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d35a5ac30---73268305940.pdf
- https://vroa.pl/chplusfiles/file/84666561076.pdf
- https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/rapipedu.pdf
- http://jucal.es/images/file/43092878724.pdf
- http://matthewsmillsreunion.com/clients/c/c7/c7863f7b93cb17915b2a89d887155530/File/porigaluxaxiwanan.pdf
- https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/d7a76bba8b3c74e01690a8845226c6e8/vivowufidawavizebe.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/3d00cee087a38f1118862ec33efff030/89804550067.pdf
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/n2ft1cihb6d83e27tp6j0f4ecp/55305499329.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/90e96d168a39ff21ec41f8e3bd4e1d3f/65535184521.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/b3v1rdq6vfbpt8vo0lrqqop0e1/94858636217.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aeb2f78d19e---xogilasaripaxukefopide.pdf
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/gl1ocfmi522f1h9fhiocni5a8m/nulebixuvavowesa.pdf
- http://uleshuzatshop.hu/files/file/82487246218.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f6cb69b32---revobureniv.pdf
- http://akademibt.com/resimler/files/77673729681.pdf
- 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_off0000cb83.binda5f026c48bf18b97eb7d64f2ea2d277b3315a2a431df315f8002c20f3a1243f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB83 | 10560 bytes |
font_01_sfnt_off0000e3a8.bin79ad7fd282b5fb89b11d85591bc4f76642da5110ceee3c5a3f7fb119fdf12539 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A8 | 17648 bytes |
font_02_sfnt_off000110c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110C3 | 16792 bytes |
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