MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML_NYX_PDF_MALICIOUS heuristic and the CLAMAV_DETECTION rule strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://astefin.ro/ckfinder/userfiles/files/32266902369.pdf In PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/unjqlqr7s6c93d79jo6jsf5ll4/8629430367.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612e99ff463a7---zaxanabubumuloxitonir.pdfIn PDF document text
- http://gsmontaggi.it/userfiles/files/lelal.pdfIn PDF document text
- https://vibangthuaphatlai.net/uploads/files/latamikopobana.pdfIn PDF document text
- http://ahnil.com/userData/board/file/vijebalisesowov.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/nifatipewugogirivudimodem.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/g330adcheqnv8u42cohccb6kv6/90428792204.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/29254422738.pdfIn PDF document text
- http://asorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vogediwilajawo.pdfIn PDF document text
- http://tranhdaquydep.vn/upload/files/nezosabezubabiw.pdfIn PDF document text
- http://progfin.pl/userfiles/file/55521373632.pdfIn PDF document text
- http://ersatzmonitor.de/userfiles/file/jenorafuxazaroga.pdfIn PDF document text
- http://oticonshop.com/ckfinder/userfiles/files/31288978331.pdfIn PDF document text
- http://www.beverburcht.nl/upload/files/42118207685.pdfIn PDF document text
- http://streathamtaxi.com/survey/userfiles/files/68884323587.pdfIn PDF document text
- http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/linavijeraxobu.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/55425eccd032aa7df519fd0b1f05ef5b/9474818819.pdfIn PDF document text
- http://mtkshop.com/images/uploads/file/lemagisegukotedikefori.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/gopizida.pdfIn PDF document text
- http://allineers.netlovestories.com/upload/files/filoxisejivex.pdfIn PDF document text
- http://wimborst-ceramics.nl/public/view/upload/fckeditor_images/file/52768319895.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=subaru+outback+2015+manual+pdfPDF 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_off0000d26e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD26E | 11224 bytes |
SHA-256: c05ab4b559546f43911260090d37c29aa1caa1bbea07189fb89a4eb781c8e06a |
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font_01_sfnt_off0000eca7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B9 | 17952 bytes |
SHA-256: 4791cf7394161e693224d727bd77e141019b22471047e888896db97810ed6667 |
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