MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URIs, many of which point to disposable hosting and are structured as link farms, a common tactic for phishing or distributing further malware. The presence of external URIs and the ML classification strongly suggest a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://pistant.ru/uplcv?utm_term=technical+interview+questions+for+android+developer PDF link annotation
- https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/tipefukorelunu.pdfIn PDF document text
- http://auswallendorf.de/userfiles/file/79548837037.pdfIn PDF document text
- http://rivucota.com/upload/files/54384042028.pdfIn PDF document text
- https://tourgardan.com/basefile/tourgardancom/files/butuzebusosuzak.pdfIn PDF document text
- http://www.bordadoindustrial.com/ckfinder/userfiles/files/wunel.pdfIn PDF document text
- http://logisticsnetworks.net/ckfinder/userfiles/files/mizikavejabutizivezo.pdfIn PDF document text
- https://kaowei.tw/image/files/20210905_071710.pdfIn PDF document text
- http://techbico.vn/uploads/image/files/98717950846.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/10448278726.pdfIn PDF document text
- https://mptradingcompany.com/userfiles/file/bafebojejazobagi.pdfIn PDF document text
- http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210913215344.pdfIn PDF document text
- http://kozhencherrymtc.org/userfiles/file/58554690209.pdfIn PDF document text
- http://140.121.180.103/ckfinder/userfiles/files/15915032304.pdfPDF link annotation
- http://congtrinhnhaviet.vn/upload/files/taruketazerugerab.pdfIn PDF document text
- https://paeonia.ch/userfiles/files/12350637794.pdfIn PDF document text
- https://sunnyrosesschool.com/userfiles/file/dutotemegulisunowo.pdfIn PDF document text
- http://ingatlantv.tv/userfiles/files/nelogaxunowa.pdfIn PDF document text
- http://lauraestetica.com/userfiles/files/molobojosine.pdfIn PDF document text
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/8a393218d57f75cbd066936233f80fdb/54098063263.pdfIn PDF document text
- http://vector-luczak.pl/new/fck_user_files/file/tivexupizeworowuga.pdfIn PDF document text
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/e32ec9df45527ad70b213489f870b6da/xazozobebin.pdfIn PDF document text
- https://gamma-electronics-eg.com/userfiles/files/34766491873.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://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_off0000da2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA2E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f240.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF240 | 18052 bytes |
SHA-256: 1701375ddb711840c100d7e96cdb34cfd04ff206f09eb3e7b56a8db6a79ebce2 |
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font_02_sfnt_off0001211e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1211E | 11076 bytes |
SHA-256: f0c100e0ba5ad8508fbe3bcfe1e0046aaba3086a5b751a692370f4f57ee89604 |
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