MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to potentially malicious PDF files hosted on disposable domains. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm strategy, suggesting the document's primary purpose is to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9901
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://barcelonasixtytwo.com/userfiles/file/nalumug.pdf In PDF document text
- https://hunde-katzen.at/soubory/43999284386.pdfIn PDF document text
- http://ipoz.pl/userfiles/file/55541115503.pdfIn PDF document text
- https://silverstonedevelopments.com/ckfinder/userfiles/files/pujagazorumoridobetuf.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/binivemifazolusixomina.pdfIn PDF document text
- http://yoron.net/up/files/30449263089.pdfIn PDF document text
- https://www.mftelhas.com.br/adm/Editor/ckfinder/userfiles/files/falavozutadeda.pdfIn PDF document text
- https://superpart.com/files/daziwenofisajenu.pdfIn PDF document text
- https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/vulokazedum.pdfIn PDF document text
- https://hobbypet.cz/files/file/megulusaduwinexakopufudes.pdfIn PDF document text
- http://maroba-zirndorf.de/file/13853305557.pdfIn PDF document text
- http://ajeah-intl.org/fck_image/file/55623773635.pdfIn PDF document text
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/bf944da3b7f6776f898b50fbec6637d7/77771117823.pdfIn PDF document text
- http://hz-karavany.cz/ckfinder/userfiles/files/satasuzunamu.pdfIn PDF document text
- https://icrs-as.com/userfiles/file/xinubujanejalirupoluzusa.pdfIn PDF document text
- http://muzeumostrowiec.pl/obrazy/file/rowojofepakaxona.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f75cd6522---vekebepivijurinebulesab.pdfIn PDF document text
- http://sbairs.com/datas/files/44889882163.pdfIn PDF document text
- https://granitabrasive.hu/editor_up/88449338014.pdfIn PDF document text
- https://chachachat.info/js/ckfinder/userfiles/files/povopupala.pdfIn PDF document text
- http://phubozena.pl/userfiles/file/46312232962.pdfIn PDF document text
- https://wintechindia.in/ckfinder/userfiles/files/31126567299.pdfIn PDF document text
- https://deesudcoolingtower.com/userfiles/file/89809622226.pdfIn PDF document text
- http://maulich.vn/attachment/files/zixoz.pdfIn PDF document text
- https://ipic.vn/userfiles/file/ratemesudomo.pdfIn PDF document text
- http://huanghels.com/filespath/files/20210908005402.pdfIn PDF document text
- https://bk.knu.ac.kr/ckfinder/userfiles/files/fegurunujidol.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=what+is+pdf+file+meansPDF 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_off0000c0f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0F9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d90b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD90B | 16068 bytes |
SHA-256: 4cc00b5faa2d25d15afb0314bc2a15ece83a2599acd497af6656e0cd8bc59024 |
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font_02_sfnt_off000101f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F8 | 10536 bytes |
SHA-256: 1ee01a74bc8e4f71f848b4c987ac45fd72a0d075ab32bace152902488432078e |
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