MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://wastran.ru/uplcv?utm_term=fortnite+game+download+for+android+free PDF link annotation
- http://hzzxtl.com/UploadFile/file/20210910012748206.pdfIn PDF document text
- http://ctnphrae.com/ckfinder/userfiles/files/nabarovafotavazoxig.pdfIn PDF document text
- https://hsse.cl/files/6329721431.pdfIn PDF document text
- http://domkomplekt34.ru/attachments/file/benefow.pdfIn PDF document text
- https://thefertilizergranulators.com/d/files/63069175133.pdfIn PDF document text
- http://dominoliberec.eu/images/file/files/fofiratewukofodunezizel.pdfIn PDF document text
- http://idevicesplus.nl/app/webroot/files/userfiles/files/565864220.pdfIn PDF document text
- https://vettercycles.ch/userfiles/files/87441410132.pdfIn PDF document text
- http://abwcrainhwy.com/uploads/files/sumolexazibesorakinuli.pdfIn PDF document text
- https://vrindaindia.com/php/joseph/uploads/file/99153193674.pdfIn PDF document text
- http://xn--j1aii.su/userfiles/file/50363445304.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/jopidak.pdfIn PDF document text
- http://sameiroeventos.pt/ficheiros/55005409347.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/509895e17b5cd30c39cb39748219ee75/jezunoje.pdfIn PDF document text
- http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/kodotadiduzadenipeje.pdfIn PDF document text
- https://ingatlansos.hu/images/userfiles/file/fenegudabavanazapa.pdfIn PDF document text
- https://hiroyoung.com/data/files/nojexisala.pdfIn PDF document text
- https://europawindow.com/app/webroot/img/main_content/files/ginoraxigituxipulosizu.pdfIn PDF document text
- https://dispecom.com/cms_dispecom/sgi_userfiles/userfiles/files/bizoxajabizavevugozizudu.pdfIn PDF document text
- http://p-itos.net/admin/userfile/image/file/xaxavutatotonorodevap.pdfIn PDF document text
- http://le-bouquet.be/userfiles/files/fifuzoxuwakadisukiwa.pdfIn PDF document text
- http://reelproductionshd.com/userfiles/file/99435187655.pdfIn PDF document text
- https://cplastik.eu/data/cms/file/16613616452.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/28288273188.pdfIn PDF document text
- http://jiachuankeji.com/upload_fck/file/2021-9-14/20210914020539864775.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_off0000b9d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9D4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d1eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1EB | 10592 bytes |
SHA-256: 4eb79e420231e724c79b0f969bac1eb1bb2a1158ddc9e6c6cfc8f973a1d061d6 |
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font_02_sfnt_off0000e9e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E2 | 16160 bytes |
SHA-256: e5754ddd508cd288f5ff6f2e0c18e29f393b9d3376cc5a1b3ab3d82a7a40a5a6 |
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