MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a link farm pointing to numerous compromised websites, many of which are WordPress installations hosting further PDF files. This suggests a campaign to distribute malicious content or phish users by chaining multiple redirects through compromised infrastructure. The ML classifier strongly indicated maliciousness, supporting this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9746
Heuristics 5
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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://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f7362400275---10163740869.pdf
- https://hogies.com/includes/template/uploads/file/93129394684.pdf
- https://mfdesign.hu/files/file/80743946153.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1611db9c3c329f---wukosureg.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/od8pcomavpjub3aaumbdvn5na6/97850148719.pdf
- https://alyosserspneed.com/userfiles/files/nodokolosale.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd8d9b6b48---jawolofenolubef.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d611604158---nezazi.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/mobifubuminimenavirejopup.pdf
- https://lochoanggia.com/upload/files/89142900843.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608f017849237---313987687.pdf
- http://sportsclinicwest.ie/media/contents/file/sisoke.pdf
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/39187992317.pdf
- https://nepalimodelagency.com/userfiles/file/48544899123.pdf
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/6fbe89a9c686cfe902da47479125a495/tefuvometavawe.pdf
- https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/virabasufugunen.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16106211f32c5c---bekonuj.pdf
- http://tms-technology.com/ckfinder/userfiles/files/rojoloferapazarup.pdf
- http://xn----7sbabjkhbzbqti4a3apfmdd2s4b.xn--p1ai/ckfinder/userfiles/files/pozetupukoxexudub.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc65c99e99---sumerotedejotuzigip.pdf
- http://3q1p.com/upload/file/210823150042328127vwcr1lm5yto5.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/06c26c631027d73a85cde3a0dc59a64f/lulononujisa.pdf
- http://d4sontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/lujagunosolepe.pdf
- https://ewdel.cz/ckfinder/userfiles/files/diloratijali.pdf
- http://ciccioinpentola.com/userfiles/files/84676814179.pdf
- http://www.clc-engineering.com/siteuploads/editorimg/file/wadedoxanememoga.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/9ifip0k65pbepn1kuii1s0l2r5/94523028770.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=what+does+determined
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e6a5.bin228445a3744f13af4bf84041e55802a923554d86926eb0745489ea117e4ab105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6A5 | 1888 bytes |
font_01_sfnt_off0000ef6e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF6E | 16792 bytes |
font_02_sfnt_off00010785.bin3ab79346055c6e2973ceb73937deaa4cc910ac3664a6f42863558a8fb7518cb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10785 | 10460 bytes |
font_03_sfnt_off00011f16.bined01db025c8de31420579ff2c6872e505989a7124814f310be711927a802b855 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F16 | 23376 bytes |
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