MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the links suggests a potential for hosting malicious content or phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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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://krisoc.ru/uplcv?utm_term=tekken+6+ppsspp+download+apk PDF link annotation
- http://gruppocaminiti.it/userfiles/files/zidadazaso.pdfIn PDF document text
- https://autohausnschmidt.de/userfiles/file/95453073922.pdfIn PDF document text
- https://livewireeventz.com/userfiles/file/23648349527.pdfIn PDF document text
- https://bimetoor.com/basefile/bimetoorir/files/sofinapojuzevabizalol.pdfIn PDF document text
- https://mami-m.com/Uploads/userfiles/files/72568087718.pdfIn PDF document text
- http://bagodilovaspark.hu/userfiles/file/74161358595.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132c77b33ab3---74432199059.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/595dc0770769f100236d4e368904e7bf/51329066586.pdfIn PDF document text
- https://deepex.hu/hirek/files/bujowagegogo.pdfIn PDF document text
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614336f4e7461---3700806731.pdfIn PDF document text
- http://uk-finansist.ru/userfiles/file/lozaluvaxe.pdfIn PDF document text
- http://cateringkieuan.com/uploads/userfiles/file/22175041423.pdfIn PDF document text
- http://worldcar.jp/userfiles/files/15959170906.pdfIn PDF document text
- http://www.bordadoindustrial.com/ckfinder/userfiles/files/puduferaleruv.pdfIn PDF document text
- http://downtowncincyhotels.com/core_degree/admin/images/cms_imagesfiles/witizu.pdfIn PDF document text
- http://radecznica.pl/userfiles/file/41224642637.pdfIn PDF document text
- https://editionsitaliques.com/userfiles/file/86712117058.pdfIn PDF document text
- http://ulv-fogger.ru/d/files/84936561810.pdfIn PDF document text
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/jaxoviza.pdfIn PDF document text
- http://caytrong.vn/Images_upload/files/38255809672.pdfIn PDF document text
- https://topclassgardening.nl/images/file/89915126342.pdfIn PDF document text
- http://max-metal.pl/gfx/file/sonijifojataxipaxevetosu.pdfIn PDF document text
- http://grafitym.kz/files/file/gipadasimoleketewanulidi.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_off0000bca5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCA5 | 17540 bytes |
SHA-256: b91d5cc82a14c441647ee747e921b6592aa80410c887d45507c6b08ef52d9870 |
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font_01_sfnt_off0000ea62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA62 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_02_sfnt_off00010279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10279 | 10404 bytes |
SHA-256: 9e31b9b9da9efa5afd248f25d9867b8e6e5b1ebfa97dc7db8c25eb7820504188 |
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