MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to potentially compromised CMS upload directories. The ML classifier strongly indicated maliciousness. The document body is heavily obfuscated, preventing a clear understanding of its direct intent, but the URL patterns suggest a link farm or distribution mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://najlepsietorty.sk/uploads/fck/file/karivazotovanepewidoxipim.pdf In PDF document text
- https://trompis-tondschungel.de/userfiles/file/tipogezajemupupemi.pdfIn PDF document text
- http://tokyosushilohaus.com/uploads/files/livex.pdfIn PDF document text
- https://theurbanthinktank.com/files/40570129539.pdfIn PDF document text
- http://mariopresto.pl/userfiles/file/kagovibezofavese.pdfIn PDF document text
- https://hongdung.vn/ckeditor/images/files/bugexekanoxafak.pdfIn PDF document text
- http://methese.com/upload/files/29084493101.pdfIn PDF document text
- http://longvu.vn/Images_upload/files/30753365553.pdfIn PDF document text
- http://mnarch.it/userfiles/files/kuxuweroki.pdfIn PDF document text
- http://baocaosudanang24h.com/uploads/image/files/3886295928.pdfIn PDF document text
- http://tataservice.it/userfiles/file/zexesa.pdfIn PDF document text
- http://wang023spa.com/userfiles/202109file/2021090904054770554.pdfIn PDF document text
- https://bisleri.genefied.co/ckfinder/userfiles/files/refakuwefibitudokonaj.pdfIn PDF document text
- http://wisdomtours.net/upload/file/gejoxepunagaba.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/33417322167.pdfIn PDF document text
- http://xn----7sbjvweekof5d.xn--p1ai/files/files/xidofezutovolanupivigogaw.pdfIn PDF document text
- http://phonphangschool.com/upload/files/88964332148.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16142afd481e7a---68173072134.pdfIn PDF document text
- https://jbdclothiers.net/emailer/userfiles/file/99106244481.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/c478703f0e185fe85a9ea9f4ffd4876c/sakazijakavevod.pdfIn PDF document text
- http://ansonseatery.com/uploads/files/sobivudorataroxizukolo.pdfIn PDF document text
- http://www.gabrielamaciel.net/images/content/file/sozamozid.pdfIn PDF document text
- http://otohondamientay.com/upload/files/23056066265.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136bb26d1500---putofev.pdfIn PDF document text
- http://onfireinteriors.com/userfiles/lawekaxugonosenanuratexi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=gedung+play+apps+free+downloadPDF 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_off0000de16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE16 | 17964 bytes |
SHA-256: ff8efca5197d921b0b43da16923970d89dbd30c8cea2d71ac72e01ce9f00cc31 |
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font_01_sfnt_off00010cef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CEF | 10820 bytes |
SHA-256: 687708825464fee6f5d8878d3e02edef5140d1cc3edec145ac487b78c6ff1e8e |
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font_02_sfnt_off000125ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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