MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many URLs pointing to potentially compromised CMS uploads and disposable hosting. The document body is heavily obfuscated and appears to be non-readable content, suggesting the primary function is to host links rather than convey information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144578cb4a79---89354491267.pdf In PDF document text
- http://aweibel.com/Photo/file/58203145970.pdfIn PDF document text
- https://sgicorp.com/userfiles/files/99408478735.pdfIn PDF document text
- https://megashina24.ru/files/files/72080913062.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16144bbf8b2d46---wepopuwutudovan.pdfIn PDF document text
- http://supermarketdv.ru/files/file/16353224994.pdfIn PDF document text
- http://chothuexeninhbinh.net/data/dulieu/files/91373359951.pdfIn PDF document text
- http://www.frank-diagn.hu/userfiles/files/47386040400.pdfIn PDF document text
- http://poongdung.com/FileData/ckfinder/files/20210916_A0BE1EC4D2025BB8.pdfIn PDF document text
- http://nanumed.ro/uploads/files/lasisojazenuxowunibuza.pdfIn PDF document text
- http://nb-magnet.com/upload/files/bilonemuzobaz.pdfIn PDF document text
- http://jayeonrak.com/upfile_editor/2021/files/nimuwiv.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c3757b371f---zibabenowadaxid.pdfIn PDF document text
- http://generoussecurity.com/uploads/45330579036.pdfIn PDF document text
- http://khlongtoei-nfe.com/library/userfiles/files/9955864289.pdfIn PDF document text
- http://www.mariabeckmann.com/fotos/uploads/files/tapusoguwokatusimetuwekox.pdfIn PDF document text
- https://hgindustrial.eu/userfiles/files/liwilifibezaf.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/tinadujemorilokijafudugis.pdfIn PDF document text
- http://derivat.sk/files/49679776742.pdfIn PDF document text
- http://eca.or.th/ckfinder/userfiles/files/42289281318.pdfIn PDF document text
- http://jimsclub.net/new/board/img_tinfo/file/20210920030618.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=hack+iphone+with+termuxPDF 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://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_off0000cdce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDCE | 10796 bytes |
SHA-256: 5e92e276e1d491e01bbd7e9e8beb06a0a7d32eeed3419040903abdf86a2bd04b |
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font_01_sfnt_off0000e690.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE690 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fea2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA2 | 17776 bytes |
SHA-256: ef5e86664f7f3dd9c62768c9e1aa24388f6e1c029b5ee4e19c87dbeb1c5b523b |
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