MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection indicate the PDF is likely used as a lure for phishing or to distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 https://pistant.ru/uplcv?utm_term=sunny+leone+hot+and+sexy PDF link annotation
- http://boletos.luzservicos.com/ckfinder/userfiles/files/28651495160.pdfIn PDF document text
- http://thietbimaugiao.vn/Images_upload/files/lazojuvoxosiguwamigiti.pdfIn PDF document text
- http://enricobarraco.com/files/80165636040.pdfIn PDF document text
- http://techsystem.gr/data/uploads/ckeditor/files/46825229225.pdfIn PDF document text
- https://commonwealthsportsawards.com/userfiles/file/vizejiwowedak.pdfIn PDF document text
- http://xn--o79av69abka850ab6c.com/upload/file/202109141844194383.pdfIn PDF document text
- http://hoangnamjsc.com/upload/files/gasowodixigebus.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/tue83f31qk7kmhmlucc88nc10g/57309858749.pdfIn PDF document text
- http://bkmarine.net/ckfinder/userfiles/files/1632743082.pdfIn PDF document text
- http://veterinariacomportamentale.it/userfiles/files/jifugedewinuzipiz.pdfIn PDF document text
- https://matricula.arendic.cl/files/dabilisifona.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/8037936554.pdfIn PDF document text
- http://dtyxbpzx.com/filespath/files/20210929172903.pdfIn PDF document text
- https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/11726511991.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/d004b11838e6e2254163c3626a0d7fc1/zakojedi.pdfIn PDF document text
- http://dkstores.gr/userfiles/file/jevulenusuzugoxud.pdfIn PDF document text
- https://maintogelonline2.com/contents/files/kolepijoteru.pdfIn PDF document text
- http://www.ctmmaximoravenna.com/ckfinder/userfiles/files/badaredujajidoke.pdfIn PDF document text
- http://kasand.com/userfiles/7196799686.pdfIn PDF document text
- http://digitalpolicycouncil.com/imagenes/file/gumebejalobefi.pdfIn PDF document text
- http://grandioso.asia/editor_upload_image/file/82162736784.pdfIn PDF document text
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/023a90874f92fabca2fae9862b72af26/badurenodubisubipivamalox.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_off0000b2c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2C0 | 18560 bytes |
SHA-256: 54906a0a35e3090583625b3b681a9819064f738e977e136d4692392e788157e9 |
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font_01_sfnt_off0000e29d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE29D | 10544 bytes |
SHA-256: eb9bb98c2a0825918a08a1392f84b8535ece67542e574e3646eb76b86ce86ab5 |
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font_02_sfnt_off0000faac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAAC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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