MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains embedded JavaScript and a large number of external links, many of which point to potentially malicious domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm on disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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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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://www.sm.ac.th/ckfinder/userfiles/files/73514993950.pdf In PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16139995683f8b---bedilopibawop.pdfIn PDF document text
- http://2safe4u.cz/UserFiles/File/kagodevigenirobibi.pdfIn PDF document text
- https://natanashoes.com/kingkong/userfiles/files/66526198779.pdfIn PDF document text
- http://diennuocdanang.com/uploads/image/files/93877347011.pdfIn PDF document text
- http://dlshixiang.com.cn/ckfinder/userfiles/files/75415747418.pdfIn PDF document text
- http://dreamwith.gni.kr/ckupload/files/84671677044.pdfIn PDF document text
- http://bandbaajabarat.com/ci/userfiles/files/62701046841.pdfIn PDF document text
- https://trompis-tondschungel.de/userfiles/file/nalenekeretibe.pdfIn PDF document text
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/pogawubomela.pdfIn PDF document text
- http://ux02.wadhost.com/js/ckfinder/userfiles/files/sazanarobiv.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/ropex.pdfIn PDF document text
- http://rootbeadmill.com/upload_fck/file/2021-9-4/20210904192327197008.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7a5817649---12802128595.pdfIn PDF document text
- http://yunnanyingxiang.com/ckfinder/userfiles/files/pigujuruvapanuzapikanimam.pdfIn PDF document text
- http://studiodugnani.it/userfiles/files/xudugeduvamomabat.pdfIn PDF document text
- https://www.greenlakecruises.com/ckfinder/userfiles/files/75554691826.pdfIn PDF document text
- http://umhouses.com/uploads/files/87056458288.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/kisotogu.pdfIn PDF document text
- http://jagdrevier.hu/upload/images/file/vowerukulowox.pdfIn PDF document text
- http://nachhilfeschule.havonix.com/ckfinder/userfiles/files/28567004807.pdfIn PDF document text
- http://hamyarsanatco.com/ckfinder/userfiles/files/ledisobigugok.pdfIn PDF document text
- http://savitapiti.org/ckfinder/userfiles/files/89884041433.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=how+can+i+change+my+imei+number+on+androidPDF 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_off0000db82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB82 | 10936 bytes |
SHA-256: fee0c39a115b1690d4054b3c92c8dd83a957b5f6ab6a0491991657b5501b89d9 |
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font_01_sfnt_off0000f46a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF46A | 16692 bytes |
SHA-256: dd7e174b401b0ad28967ad87e8d68a94b381e372de497c554bd55a49a55ce6fa |
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font_02_sfnt_off00011fcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FCC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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