MALICIOUS
166
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, with high-severity heuristics indicating the presence of algorithmically generated URLs and a link farm hosted on disposable domains. The document body is heavily obfuscated, preventing analysis of its specific content, but the numerous external links suggest a phishing or credential harvesting attempt.
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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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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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://hzzxtl.com/UploadFile/file/20210921103422017.pdf In PDF document text
- http://mya1fc.com/files/ckuploads/files/dusabegilonafiwabel.pdfIn PDF document text
- http://domainecomps.com/documents/files/89737711936.pdfIn PDF document text
- https://rusepress.com/uploads/wysiwyg/files/zugaroz.pdfIn PDF document text
- https://dpdpunjabi.myskoolapp.com/FCKeditor/FCKimgUpload/file/bupakali.pdfIn PDF document text
- http://oralrem.kz/ckfinder/userfiles/files/3779494119.pdfIn PDF document text
- https://eliteplacementagency.com/uploads/files/18791974450.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cc1419b40d---68258496846.pdfIn PDF document text
- http://phoiinnhiet.com/images/uploads/files/55984678646.pdfIn PDF document text
- http://jtylek.pl/Upload/file/35931047886.pdfIn PDF document text
- http://studiolauramoschini.it/userfiles/files/zufefizume.pdfIn PDF document text
- http://bangdinhphucat.com/quangbasanpham/app/webroot/upload/image/files/dovivuzosekozuz.pdfIn PDF document text
- https://childrencareandliteracysociety.org/userfiles/files/1070364575.pdfIn PDF document text
- http://cuanhuadanang.vn/uploads/image/files/56789300723.pdfIn PDF document text
- https://xlspandoek.nl/userfiles/file/novidilibona.pdfIn PDF document text
- http://www.fishandcosolicitors.com/uploads/files/wunakapi.pdfIn PDF document text
- http://mrs-edu.com/sribati/editor/uploadfiles/4707465814.pdfIn PDF document text
- http://sanruou.com/app/webroot/uploads/files/19604283335.pdfIn PDF document text
- http://getrade.net/uploadfiles/file/dubarisejawozevir.pdfIn PDF document text
- https://bibonatura.hu/ckfinder/userfiles/files/43087174796.pdfIn PDF document text
- http://studiopiergentili.it/userfiles/files/7676088175.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/0c1a660e4e787ee842c21da721152c68/porapubideni.pdfIn PDF document text
- http://knauto.com/upload/file///37199362243.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+get+minecraft+apkPDF 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_off0000e186.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE186 | 17484 bytes |
SHA-256: 75258d138548565185ff96d3fc473293cb3443be5285bafd44837c3558cc6c41 |
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font_01_sfnt_off00010ee9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EE9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012700.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12700 | 10776 bytes |
SHA-256: b6a898fa7574037a523e4eaadf25b6213c371eba78c593104a23b3c2b532a136 |
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