MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The heuristics indicate it functions as a link farm, directing users to numerous distinct hosts, with one notable URL being http://15441707.com/data/board/file/20210912135319.pdf. This suggests the document is designed to trick users into visiting potentially harmful websites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://15441707.com/data/board/file/20210912135319.pdf In PDF document text
- https://bravo-hk.com/userfiles/file/gowovofimadetoj.pdfIn PDF document text
- http://www.gpe-el.pro/ckfinder/userfiles/files/91592599290.pdfIn PDF document text
- http://currycornersugarland.com/admin/images/file/76955602064.pdfIn PDF document text
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/kokufiminisovorewizomuwuv.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/rapobatikajujukimat.pdfIn PDF document text
- http://gearonlaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jalavinawezir.pdfIn PDF document text
- http://danguykhoidoanhnghiephp.vn/Upload/files/24653377724.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/69895145829.pdfIn PDF document text
- https://webrobogo.hu/kepek/semitaxokofuwafopax.pdfIn PDF document text
- http://dungcubepgiangtrinh.com/webroot/img/files/68621221587.pdfIn PDF document text
- https://bestcoloringpages.com/userfiles/file/limolejo.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/momuperoveniju.pdfIn PDF document text
- https://tempegaring.com/contents/files/73559437738.pdfIn PDF document text
- http://graviroz.hu/ckfinder/userfiles/files/bamonuroxogiwikawumurik.pdfIn PDF document text
- http://kartinatv.org/uploads/files/37917868111.pdfIn PDF document text
- https://gres-k.cat/userfiles/file/tojufakuw.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139d4d8259f1---xosimugomemabodefum.pdfIn PDF document text
- https://www.tahitotfalu.hu/ckfinder/userfiles/files/27398766214.pdfIn PDF document text
- https://www.potravinyav21.cz/ckfinder/userfiles/files/19568187239.pdfIn PDF document text
- http://izeninfo.net/admin/upload/files/5520619932.pdfIn PDF document text
- https://kapefashion.com/files/files/62567969722.pdfIn PDF document text
- http://teakdeck.pl/files/file/99900422192.pdfIn PDF document text
- https://whiteplacard.com/UserFiles/file/wowororobevagaza.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613afb1b413e0---muloxosonebixakezezafig.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=fifa+mobile+update+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_off0000b45c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB45C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC73 | 10596 bytes |
SHA-256: 71f091e950b38968151a1cea69b14074f3551a9a9e2dac8f1d4e62bf2a7bca84 |
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font_02_sfnt_off0000e468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE468 | 14524 bytes |
SHA-256: 3b2ae1b6241fe66126eeba5008de8bd0c3232fb0b1ef52573eceb2dcc32441a1 |
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