MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised or disposable hosting domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' specifically highlights the use of compromised WordPress upload storage, further supporting a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://spostojow.pl/userfiles/file/vafefimofeponawapixebosew.pdf In PDF document text
- http://www.iece.in/userfiles/file/74509354715.pdfIn PDF document text
- http://bettynblue.com/upload/fck_img/20210525/file/sigifomu.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad7ae37ac07---5224330471.pdfIn PDF document text
- http://hoangminhphatkorea.com/webroot/img/files/92143470666.pdfIn PDF document text
- https://etcbt.com/userfiles/file/jifud.pdfIn PDF document text
- http://cocoal.com/uploads/file/mupim.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070fb62301b1---pegusela.pdfIn PDF document text
- https://ovistar-dz.com/ckfinder/userfiles/files/gozemaxowuk.pdfIn PDF document text
- http://www.singchai.co.th/ckfinder/userfiles/files/nojajurogizidojonanumo.pdfIn PDF document text
- http://maslatalaia.com/userfiles/file/91638401964.pdfIn PDF document text
- http://spreewaldatelier.de/img/editor/file/96234806903.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bc2bd14bf25---45193833526.pdfIn PDF document text
- http://harc-ias.vn/Images_upload/files/74954259158.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/06a2573a5399d040eb8d3cd74039561e/zisinenukedososanewud.pdfIn PDF document text
- https://fentesmakina.com/paket/upload/files/kitakukojejulufevuturig.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021060311035660.pdfIn PDF document text
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/5df491c5bc6e69de3e24900f73e8eb10/bosed.pdfIn PDF document text
- http://klasykarozrywki.pl/public/images/fck/file/89290443395.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da8d80b120d---fimaxororila.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16122b8ada53e6---2951417525.pdfIn PDF document text
- http://poslovniimenik.net/firme_data/files/tabajibirutakos.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/c701d2eb1af4c84b313303bd18bf235f/bebide.pdfIn PDF document text
- http://lanaecoloridabruzzo.it/userfiles/file/dudutobowajitozudoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=ansi+iec+60529+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_off0000ed5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED5D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10574 | 10780 bytes |
SHA-256: 7a8c834d4ff9c0aa2be29e040cd6e6d8fc6faaa4a89d78a90daef3664cd5e14b |
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font_02_sfnt_off00011e63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E63 | 19224 bytes |
SHA-256: 4a5579afab9946c3478fa3640d69ab2426e519b3740507467ce3bad4a9571599 |
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