MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly indicate this file's purpose is to act as a link farm. The ML classifier and ClamAV detection further support its malicious nature, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9897
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://catamma.ru/uplcv?utm_term=arp+data+link+layer PDF link annotation
- http://topas.lt/userfiles/file/64937149810.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/11403699850.pdfIn PDF document text
- http://msnladyboy.com/ckfinder/userfiles/files/zuzevezemixodobonid.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/f57d7a3ef6ce927a0f16a3c246e94648/puzurebaguk.pdfIn PDF document text
- http://ajivikafinance.com/userfiles/file/tajuv.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cb100db2351---fonufakalepabovotop.pdfIn PDF document text
- http://sanga.asia/userData/board/file/21352759706.pdfIn PDF document text
- https://djennebeads.com/nbloom/fckuploads/file/gebulefoxegozonos.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbe0491f08---52999916438.pdfIn PDF document text
- http://mextro.de/upload/files/xuzuvij.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1de1e5e15---73693067017.pdfIn PDF document text
- http://1hozain.ru/files/userfiles/files/20143430545.pdfIn PDF document text
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/343st5uf4lm1ltrcabu2tm8cpv/metubakidupatet.pdfIn PDF document text
- http://benthanhsgfarm.net/images/uploads/files/tesubu.pdfIn PDF document text
- http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/1931933220.pdfIn PDF document text
- http://osoboebludo.com/ckfinder/userfiles/files/32478476172.pdfIn PDF document text
- http://supragyn.cz/userfiles/file/82866479124.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///56143865848.pdfIn PDF document text
- http://poornasreehomeoclinic.com/ckfinder/userfiles/files/wefivuju.pdfIn PDF document text
- http://lltsg.com/uploadfile/file///2021061901431639.pdfIn PDF document text
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/de778eef1d2fdd831aa0fe7c23c91d40/revewiromipez.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad9a3066c8---tadize.pdfIn PDF document text
- https://menokatea.in/ckfinder/userfiles/files/85748860364.pdfIn PDF document text
- http://solamsys.com/userData/board/file/dixenoso.pdfIn PDF document text
- https://vinasimex.com/uploads/file/3161901847.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a43000c0c---wimurezimafoz.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16087d2f904d7d---5725645857.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_off000108fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108FD | 19272 bytes |
SHA-256: 589696e0f08fff9fe556751211a6dfc83add9ea11125240a8583dfd99d4b0bb4 |
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font_01_sfnt_off00013ad6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AD6 | 10284 bytes |
SHA-256: e5875bfed280d1713813fd51af268612d9397f861388a24e497a259a174cf428 |
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font_02_sfnt_off00015211.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15211 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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