MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate malformed exploit streams and a link farm structure, suggesting the PDF is designed to redirect users to potentially malicious websites. The numerous embedded URLs point to phishing or malware distribution sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://huntic.ru/uplcv?utm_term=top+ios+rpg+games PDF link annotation
- https://eklyps.net/images/file/26010683334.pdfIn PDF document text
- http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/42883038579.pdfIn PDF document text
- http://veronikavilla.hu/userfiles/file/11330659886.pdfIn PDF document text
- http://tuzoltosagmihald.hu/userfiles/file/8250215318.pdfIn PDF document text
- http://ranjitabiswas.com/userfiles/files/61402306064.pdfIn PDF document text
- http://kovofilm.cz/userfiles/file/watezu.pdfIn PDF document text
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/3c39e8616169058f0d9dc29886601dae/pewomazonafidazijel.pdfIn PDF document text
- http://abwclayton.com/uploads/files/71228043385.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390ff6cb27a---luwojazaleremalam.pdfIn PDF document text
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/24809927289.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/potazolemodiwabiwa.pdfIn PDF document text
- https://alpasol.e-giant.net/upload/files/22078103736.pdfIn PDF document text
- http://e-menu.hu/editor_up/xuposob.pdfIn PDF document text
- http://studioguatta.it/userfiles/files/35718652163.pdfIn PDF document text
- http://ssanadia.in/userfiles/file/8547550473.pdfIn PDF document text
- http://fapannimario.it/userfiles/files/18411159819.pdfIn PDF document text
- https://htapigroup3.com/contents/files/66365338268.pdfIn PDF document text
- http://amandatravel.com/userfiles/file/bebinizulow.pdfIn PDF document text
- https://gujaratisamajparis.org/upload/files/somapekeli.pdfIn PDF document text
- http://tw-echen.com/uploads/files/202109050019077929.pdfIn PDF document text
- http://nikkenj.com/userfiles/file/22587412471.pdfIn PDF document text
- http://vino-charlie.cz/userfiles/file/80412191473.pdfIn PDF document text
- http://schturman.ru/files/files/46350577609.pdfIn PDF document text
- http://cathugo-yachts.de/res/wysiwyg/file/3245025774.pdfIn PDF document text
- http://sportschoolindex.nl/images/uploads/dadivis.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_off0000e9ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9AE | 10312 bytes |
SHA-256: 85fdb29ee061fd7372c1dddf235817a46fa86d9ad0252e84e753905beb6b391b |
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font_01_sfnt_off000100f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100F4 | 17244 bytes |
SHA-256: 485725a33dfb6398d688fabec09def3b40809d32511a23dedf3400ee45eaf881 |
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font_02_sfnt_off00012dc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DC3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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