MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. This script likely redirects the user to an external URL, as indicated by the PDF_RANDOM_URL_LINK heuristic, which points to a second-stage PDF. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 http://feriaalainversa.com/uploaded/files/kawokurejefuxikagumar.pdf In PDF document text
- http://tcsklife.com/filespath/files/20211006042002.pdfIn PDF document text
- http://pazzo.jp/js/upload/files/97846203198.pdfIn PDF document text
- http://ntvietnga.com/upload/files/3803792440.pdfIn PDF document text
- http://mdknoodles.co/uploads/files/wiradilu.pdfIn PDF document text
- http://daiichibus.vn/uploads/news_file/85449535384.pdfIn PDF document text
- http://olivetheater.com/userData/board/file/47181007070.pdfIn PDF document text
- http://poiskvod.ru/images/file/30205916817.pdfIn PDF document text
- http://potentialdesign.cn/userfiles/file/1632866250.pdfIn PDF document text
- http://nceed.kr/pds/userfiles/files/47287724878.pdfIn PDF document text
- http://otohondamientay.com/upload/files/dujawazejegokotuzew.pdfIn PDF document text
- http://chochosanencino.com/uploads/files/95091828365.pdfIn PDF document text
- http://jlsxjy.com/right/UploadFile/file///2021100123240373499.pdfIn PDF document text
- https://reha.bg/content/upload/file/pavebakomofezitagamix.pdfIn PDF document text
- http://fotografoenricogiampieri.it/userfiles/files/84118460694.pdfIn PDF document text
- http://ninda.vn/userfiles/files/siwonubab.pdfIn PDF document text
- https://girl0229960192.com/upload/users/files/fajederotikepafim.pdfIn PDF document text
- http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/tepanevadedaxujopudumox.pdfIn PDF document text
- https://freebcard.com/ckfinder/userfiles/files/76943479407.pdfIn PDF document text
- http://norilskgu.ru/userfiles/file/widiji.pdfIn PDF document text
- http://hondatayho.vn/images/ckeditor/files/45984173258.pdfIn PDF document text
- https://groupekheidri.com/ckfinder/userfiles/files/sulosatajidoluzowutisut.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/61854473959.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/D9plVHj2VOU/uplcv?utm_term=goal+setting+quotePDF 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_off0000b3ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3CA | 10468 bytes |
SHA-256: 85e9b2dc2286d0ca8e2579ba54299ab2bf6dbd15f6de2c39ed6d24a8fa241eed |
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font_01_sfnt_off0000cb6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e37c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE37C | 15488 bytes |
SHA-256: a1abf4f9ea03ae49a0c3b8a738ab22a9ca0b9a4196b9884fd26932c126a4598a |
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