MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users. The presence of these links indicates an attempt to lead users to malicious content, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://oniceh.ru/uplcv?utm_term=bloom%27s+taxonomy+verbs+for+objectives PDF link annotation
- http://irvine.songhakbbq.com/uploads/files/godoguf.pdfIn PDF document text
- https://kampusogrenciyurdu.com/file/mofevusejepujovawu.pdfIn PDF document text
- http://osmed.cz/app/webroot/files/files/xagetetobodekabakefavi.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131cfe2297a3---zagitakokilipaji.pdfIn PDF document text
- http://savages.lu/imagesRTE/files/42136608289.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b50cc6cb21---welise.pdfIn PDF document text
- http://fecirturizm.com/resimler/files/xolenopetalozenoxudemori.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613305f0a1cc8---9144869233.pdfIn PDF document text
- http://romangruszecki.com/uploaded/file/kibugajunatotufu.pdfIn PDF document text
- http://filippodelvita.com/demo/userfiles/file/52256893728.pdfIn PDF document text
- https://mttrasportisrl.it/dati/upload/file/naruxotavimasefe.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/tfsodeorn4a53hvotagm298594/75866335022.pdfIn PDF document text
- http://mentor-tutor.com/newGroserLikeProject/uploads/files/91793745552.pdfIn PDF document text
- http://lasfyy.com/uploadfile/file/20210904164312164.pdfIn PDF document text
- https://braveathlete.net/geektic/files/59781887903.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/voratuzataj.pdfIn PDF document text
- http://zoltysnieg.pl/pliki_wyswig/files/jikekuvegorevononorul.pdfIn PDF document text
- http://izeninfo.net/admin/upload/files/vunozifagolidumon.pdfIn PDF document text
- http://naphotelbangkok.com/userfiles/files/43052584355.pdfIn PDF document text
- http://enjoybowlramenandpoke.com/uploads/files/refamejemowezef.pdfIn PDF document text
- https://tvsporedi.si/vsebina/46276529347.pdfIn PDF document text
- http://dogable.de/userfiles/file/dumuresegukabit.pdfIn PDF document text
- http://zsdbiopharm.com/upload/files/masegi.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_off0000f0b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0B3 | 11136 bytes |
SHA-256: a056a12259a03415e681c5d380d5f6e792fed6a91945d321b971ec2603c25e06 |
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font_01_sfnt_off00010ace.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACE | 18136 bytes |
SHA-256: b19bca8d130b21708647377d5c9d3cc9b1aec8eb9a8b43245dd876ae40f7a8e1 |
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font_02_sfnt_off0001399e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1399E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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