MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple potentially compromised websites. The presence of numerous unknown URLs and a specific detection of 'Pdf.Phishing.Trojan' strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://candientu24h.vn/webroot/img/files/tesuxirigemuwebiratetafu.pdf In PDF document text
- https://cincia.ro/ckfinder/userfiles/files/suratalikifitowinu.pdfIn PDF document text
- http://wenxuezj.com/images/File/94834705626.pdfIn PDF document text
- http://www.papelerialapiceros.es/ckfinder/userfiles/files/lidufunenip.pdfIn PDF document text
- http://kayapaliinsaat.net/file/vikedofumiruweberomuw.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/r4m8iqfm1pdtaoco4c95k4smv2/24662914106.pdfIn PDF document text
- http://china-shengbang.com/upload_fck/file/2021-9-25/20210925021606146997.pdfIn PDF document text
- http://theclelandgroup.com/img/upload/file/kititogusedukeraluk.pdfIn PDF document text
- http://e5tbr.alruaa.com/ckeditor-ckfinder-integration/uploads/files/kowomotedokeg.pdfIn PDF document text
- https://ceccarmehedinti.ro/userfiles/file/73900869453.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/56g2nhgeh5grvhecvoruaongu4/wikajetamaz.pdfIn PDF document text
- https://giridhareye.org/ckfinder/userfiles/files/vijepepemojajunilager.pdfIn PDF document text
- http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/28264946299.pdfIn PDF document text
- https://hiddencliff.kr/FileData/ckfinder/files/20210927_F0409B83ABF99896.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16133549d36f49---49293559981.pdfIn PDF document text
- http://qdjshg.com/files/file/84753667793.pdfIn PDF document text
- https://tourpon.kr/FileData/ckfinder/files/20210915_2C8FDC40856597FA.pdfIn PDF document text
- https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/4012655871.pdfIn PDF document text
- https://lawina-radom.pl/files/file/85212422676.pdfIn PDF document text
- http://thechitay.com/uploads/userfiles/file/kanutalokogumuwewemifada.pdfIn PDF document text
- http://www.sctiec.com/up_files/FCK/file/muxudekafotamewaza.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/jelegopubu.pdfIn PDF document text
- http://veiligheidssloten.nl/ckfinder/userfiles/files/kikulil.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=american+horror+stories+onlinePDF 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_off0000b24a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB24A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA61 | 10476 bytes |
SHA-256: 7ac740b7f81e8ef4bd08689b8d8df8a0993845c987e17d43fde958e839901101 |
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font_02_sfnt_off0000e1f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1F9 | 15572 bytes |
SHA-256: b111b1ad4ca30597863ef850d072f539359f42f0b5a4a8c85dea787c6f1504c8 |
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