MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous external links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure of downloading a payload. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://crysiq.ru/uplcv?utm_term=fish+go+io+mod+apk PDF link annotation
- https://xtremefitksa.com/ckfinder/userfiles/files/kigavum.pdfIn PDF document text
- https://maisonforville.be/documents/file/76772565865.pdfIn PDF document text
- http://www.gesas.it/media/mailinglist/file/wizuridimavo.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/44951432344.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/sijijuxirutinobepef.pdfIn PDF document text
- http://photopuzzle.net/userData/board/file/74411269469.pdfIn PDF document text
- http://tokstar.com/_UploadFile/Images/file/32928854659.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613da23baaf4c---bokevegirowetoju.pdfIn PDF document text
- https://rajatotogroup3.com/contents/files/wezepa.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614579e1b0faa---90839338696.pdfIn PDF document text
- https://glearningsolutions.com/userfiles/files/33913614355.pdfIn PDF document text
- https://alutat.com/data/file/30061633210.pdfIn PDF document text
- http://globalbizkorea.com/userData/board/file/6400744316.pdfIn PDF document text
- https://listocrm.com/userfiles/files/93980415260.pdfIn PDF document text
- http://elai.kz/upload/2021/09files/210916145049132169fnodc.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f13daafc8---jifuroxijonixaj.pdfIn PDF document text
- http://latiendasegura.com/contable_prueba/userfiles/file/87101572113.pdfIn PDF document text
- http://140.121.161.111/ckfinder/userfiles/files/mikiliwitarutabenitonexod.pdfPDF link annotation
- http://abwlondonblvd.com/uploads/files/90407329919.pdfIn PDF document text
- http://jainfarms.com/uploads/2444205923.pdfIn PDF document text
- http://wildzipper.com/clients/wildzipper/userfiles/file/zaxotawibinifolininos.pdfIn PDF document text
- http://mauthietkedep.info/upload/files/mibagibakasaj.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/kigl0anbrks7jk9682m9bm1aro/lovod.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_off0000d392.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD392 | 17484 bytes |
SHA-256: f81f9c1bb2e66b462baf38449dc86427dc51745a5f93cdc2e6a340fe2bafd800 |
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font_01_sfnt_off00010148.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10148 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001195f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1195F | 10428 bytes |
SHA-256: 6236de36e7579eca79a45f637d2f473e9542bfceacb8a067ab1906f56af85a38 |
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