MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to unknown domains, suggesting it functions as a link farm designed to redirect users to potentially harmful content. The presence of multiple distinct hosts and the 'utm_term_redirector' flag further support its role as a malicious redirection mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://toanthinh.vn/webroot/img/files/lajobozubezitozu.pdf In PDF document text
- http://msdoubrava.cz/foto/images/file/17699741892.pdfIn PDF document text
- http://1yunnan.com/ckfinder/userfiles/files/65520259551.pdfIn PDF document text
- http://my-hustle.net/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/71862995460.pdfIn PDF document text
- https://ginecologmuresan.ro/ckfinder/userfiles/files/21455799958.pdfIn PDF document text
- http://utuin.net/files/fckeditor/file/repuk.pdfIn PDF document text
- https://tasivn.com/upload/ck/files/61674138789.pdfIn PDF document text
- http://myucpb.com/userfiles/file/24220356839.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/f254bdd7248052a6a215702466a6042d/gepevubedibaw.pdfIn PDF document text
- http://www.adarshvidhyasankul.org/userfilesfile/36900510660.pdfIn PDF document text
- https://bokaichenyu.com/upload/files/51128091490.pdfIn PDF document text
- http://obrienbuilders.com/userfiles/file/divatubonemapenosad.pdfIn PDF document text
- http://istanbulballoons.com/ckfinder/userfiles/files/fusarivoderasupekes.pdfIn PDF document text
- http://kronospan-mofa.hu/editor_up/xovuxetugole.pdfIn PDF document text
- https://rtaadmin.mrv-educationservices.com/content_file/files/bezetimurufozejolajoje.pdfIn PDF document text
- http://taxicityplus.ru/userfiles/file/44606235637.pdfIn PDF document text
- https://pensiuneavalentina.ro/app/webroot/file/kojidetamudizaxawabagoxa.pdfIn PDF document text
- http://yigang-lin.com/uploads/files/202109131850557188.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/99263112566.pdfIn PDF document text
- http://ideatity.com/ckfinder/userfiles/files/92540754080.pdfIn PDF document text
- https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/30183526158.pdfIn PDF document text
- http://ingegneriarossi.it/userfiles/files/wakorevovikex.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=one+line+flirtPDF 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_off0000cb82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB82 | 9784 bytes |
SHA-256: 3fee726e2511a3daeaa7be7789487802fb77b13f4c33b785df7bab2ba6bad9c3 |
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font_01_sfnt_off0000e107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE107 | 17976 bytes |
SHA-256: 9b5f80d549415c0037e6fdba81399a4e83bef89dc160342d7c45b19764cadc71 |
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font_02_sfnt_off00010fd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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