MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm pointing to numerous domains, many of which appear to be compromised WordPress sites or disposable hosting. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be intended to trick users into downloading an archive, possibly by providing password instructions, which is a common tactic to bypass gateway scanning. No scripts were extracted, but the presence of external URIs and the link farm structure indicates a phishing or SEO poisoning attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://crysiq.ru/uplcv?utm_term=como+actualizar+el+android+de+una+tablet PDF link annotation
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/2851a61f0044dde974cde8f9bd094da6/7361807877.pdfIn PDF document text
- https://fiscalonline.ro/app/webroot/files/userfiles/files/20298569746.pdfIn PDF document text
- http://nessium.fr/userfiles/file/riwafomu.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1613fac40138bb---kobemomulowez.pdfIn PDF document text
- http://busangh.com/attfile/fckimg/file///20210901122228_888691524.pdfIn PDF document text
- http://gesht.ru/admin/ckfinder/userfiles/files/3653641723.pdfIn PDF document text
- http://redigonda.it/userfiles/files/18191624668.pdfIn PDF document text
- https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/tuxevuvaz.pdfIn PDF document text
- https://newtop-eg.com/userfiles/file/gosotadapuvafalifikudem.pdfIn PDF document text
- https://fultoys.com/userfiles/sebux.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613669704bc75---mibojomewofodo.pdfIn PDF document text
- http://madinagirls.com/easydo%20v2.00/files/uploads/meredasuropezikel.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/tozojuvimot.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613f19be6b909---wiguvojodezejikomujoxefim.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/40335290365.pdfIn PDF document text
- http://kwiatmetal.pl/userfiles/file/28421017195.pdfIn PDF document text
- http://bebsulmare.com/userfiles/files/nojulefevo.pdfIn PDF document text
- https://www.fishhabitatnetwork.com.au/application/third_party/ckfinder/userfiles/files/wumagujo.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161383d6f9fc5f---4912801323.pdfIn PDF document text
- http://inoxbienhoa.com/upload/files/51382681295.pdfIn PDF document text
- http://arnoldbolingbroke.com/ckfinder/userfiles/files/larudozo.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613190f09049a---levilusewenojagogataxudub.pdfIn PDF document text
- https://mavachhaiphong.com/upload/files/viwafujuminukoja.pdfIn PDF document text
- 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_off0000daf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f310.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF310 | 10692 bytes |
SHA-256: 5a26d8d8a55d42fe78a82986581bd8c7714341a43f99757f559fc8e76a32c053 |
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font_02_sfnt_off00010b94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B94 | 18468 bytes |
SHA-256: 2e1811f44e89d1a3b14df5b5066aa04e2322a2cec9c1427874c230d58cbef1f3 |
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