MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also strongly indicated maliciousness, specifically classifying it as a phishing trojan. The document's structure and numerous external links suggest an attempt to redirect users to malicious sites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://centaur.vri.cz/docs/files/fofit.pdf In PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/40e12775130ea9b8c6027118bfc3e619/91003260850.pdfIn PDF document text
- http://lycee-elm.info/userfiles/file/wuvewogade.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/eeng4116600qhnv10k78vs3ucq/60823522033.pdfIn PDF document text
- http://unibeauty.com.br/ckfinder/userfiles/files/xopobuje.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/738b5849755a5d29ba0a8bfcca3a41c1/mowilenozotibugiboter.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/jojazivapogi.pdfIn PDF document text
- http://boonfagrandhome.com/user_img/files/gunorepelebabom.pdfIn PDF document text
- http://rmgoals.com/userfiles/files/67540681952.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/55311834830.pdfIn PDF document text
- http://fueandhair.com/userfiles/files/xadofepu.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad5cc30551---fikokuginalineri.pdfIn PDF document text
- http://thayloilocnuoctaihanoi.net/upload/files/30865942676.pdfIn PDF document text
- http://thestarbusan.com/FileData/ckfinder/files/20210918_BA4ADBD1226B197A.pdfIn PDF document text
- http://dkyangmei.com/uploadfile/file/2021090719445273499.pdfIn PDF document text
- http://madonnina.info/userfiles/files/jonegaponamobenatogajen.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161459accb3b2f---daforimigonakedizifixasup.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/sidolenazuxusub.pdfIn PDF document text
- https://smilaxlabs.com/userfiles/files/94473705791.pdfIn PDF document text
- http://allmedicus.com/userfiles/file/damumonegurele.pdfIn PDF document text
- https://redengewinnt.com/userfiles/file/50536919390.pdfIn PDF document text
- https://riwg.in/userfiles/file/satasi.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1613f841b2e0a1---98872720024.pdfIn PDF document text
- https://www.eos.org.eg/ckfinder/userfiles/files/93832174596.pdfIn PDF document text
- http://izumrud38.com/ckfinder/userfiles/files/31940757448.pdfIn PDF document text
- https://vientangluc.com/upload/files/25257302343.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=apk+alpine+linuxPDF 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_off0000e65e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE65E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fe70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE70 | 20240 bytes |
SHA-256: 9025ccf9b65d5f961b47387da85619a5de009235a174102d9bc858b18d6f798f |
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font_02_sfnt_off000133d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133D7 | 10036 bytes |
SHA-256: ec4103a4f3ffda53a9a271da1b7ebe7720e80f708f50276ada4b08b45780317b |
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