MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous external URIs and link farms pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://oniceh.ru/uplcv?utm_term=incomplete+and+codominant+traits+worksheet
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/piand3rgqlilu9cjmgibq7t313/xebalezokalaru.pdf
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160739b04a41a9---21915861468.pdf
- https://lescourailleurs.com/upload/editor/file/72728728757.pdf
- http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca08c0fd17---2747021310.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098352a82d64---93225334574.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608576b674875---pimotebovezebok.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3bd75ece25---tetojozufanavojege.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160792426a749e---40662435206.pdf
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/ovc0biiu2a5na253uji3os217k/lalipubolubijobudaxa.pdf
- http://bestorkate.com/uploads/ckeditor/files/5595490385.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/d4c74a006ee3b56b66f2f64009d051df/7444425482.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b747765fb2c---81125418968.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/nau4cb7543h9vk5pee42igpv9b/14919657888.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/a149716527ff8a5a2981928ec9d3ee01/tamononezijoxana.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074f7d9bfddc---41373580039.pdf
- http://vamaconsulting.sk/userfiles/file/3476785898.pdf
- http://abnicum.com/files/file/12052102358.pdf
- http://lev-steklo.ru/userfiles/file/31521916200.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a3af261e96c---jolakivu.pdf
- http://axwelindia.com/uploads/27119429846.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f3b88b987---musol.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/e1e30210a686909ab5a590567cef9a0b/28046784759.pdf
- http://kinel-hunter.ru/upfiles/file/43576685988.pdf
- https://aslimitada.com/userfiles/file/25610431232.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_off0001009f.bind6e09e3cc89d6ef66a06fc6b1caf7b659dce2eca4705cae5ba35a1c1d3fcfc64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1009F | 17792 bytes |
font_01_sfnt_off00012e2a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E2A | 16792 bytes |
font_02_sfnt_off00014641.bin38dbcd0511cc3d7d1938817dcd9463f2b37cf3e6bfeecfff9c560816f8ccf812 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14641 | 10908 bytes |
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