MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to compromised websites, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. These links likely lead to further malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
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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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://s-pack.kr/userfiles/file/20210920094624.pdf In PDF document text
- https://hunglivet.com/uploads/files/202109050201505642.pdfIn PDF document text
- http://lauraestetica.com/userfiles/files/sokuvotowiragenojifafuze.pdfIn PDF document text
- http://duocthientam.com/uploads/ckfinder/files/kuzopimutata.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f19b18f900---46765549253.pdfIn PDF document text
- https://senesi-sklad.cz/userfiles/file/kuzarizasa.pdfIn PDF document text
- http://bbmeti.it/userfiles/files/42622167067.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/93858873596.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161338bb4d2495---refejazabebipasemem.pdfIn PDF document text
- https://kitchensofdiablo.com/upload/file/26981517863.pdfIn PDF document text
- http://sh-songshi.com/admin/upimg/file///mopax.pdfIn PDF document text
- http://ozanatalan.com/iboard/includes/userfiles/files/rovovuwazanovofexizuwi.pdfIn PDF document text
- https://sicurezzaips.it/uploads/file/52838230772.pdfIn PDF document text
- https://mgc.to/sites/web/upload/files/27837325361.pdfIn PDF document text
- http://bbbo.handyfriendship.com/upload/files/dunewosed.pdfIn PDF document text
- https://siam-royal-view.ru/data/files/kebapiko.pdfIn PDF document text
- https://www.speeddating.lt/speeddating/ckfinder/userfiles/files/sazurudojowozilolewowep.pdfIn PDF document text
- http://studiotecnicomartani.eu/userfiles/files/67198400620.pdfIn PDF document text
- http://bhhangkhong.com/upload/images/files/lexixalogoze.pdfIn PDF document text
- https://phukienbep.net/media/files/20014344157.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/e4e483fcc1639696c29da5015a1702e5/tubokawufasobo.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ae11258df2---sewixixipabizotexup.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=firmware+tv+box+mxq+pro+4kPDF 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_off0000b02c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB02C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c843.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC843 | 10784 bytes |
SHA-256: 0efc694184c461fe0ffa412ba55514c980784f0040a923df2ddb44dec423550b |
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font_02_sfnt_off0000e0fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0FA | 14236 bytes |
SHA-256: fbfc0bb67a4e82920f43850bad30a1bea410da72365790c56f9cba01f20ab336 |
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