MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains embedded JavaScript and a significant number of external links, many pointing to compromised or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded JavaScript (T1059.007) and the nature of the links strongly suggest a phishing or malware distribution campaign, likely delivered as a spearphishing attachment (T1566.001).
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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 farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://yuanhebiotech.com/upload/files/xuwuv.pdf In PDF document text
- https://ra7a7p-h3ba7.com/contents/files/xoduzefefopuvufamewonab.pdfIn PDF document text
- https://tsydesign.com/userfiles/jws/files/memawipajumuxikemejovu.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/1a2d575b0b6b54e4ef80498a61cbe1cf/gagesoge.pdfIn PDF document text
- http://bukharajohnscreek.com/sites/default/files/file/21582238983.pdfIn PDF document text
- https://giaiphapthietke.vn/media/file/files/wowadikokibo.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa4a134420---39610586572.pdfIn PDF document text
- http://sreema.org/FCKeditor/file/pugipura.pdfIn PDF document text
- http://le383.com/uploads/files/xotoranajitobadu.pdfIn PDF document text
- http://lionsmarsala.it/userfiles/files/pozimuda.pdfIn PDF document text
- https://bunyaminerdemir.com/resimler/files/40493550668.pdfIn PDF document text
- http://massvt.sk/editor_uploads/system/files/47391150088.pdfIn PDF document text
- https://www.thaiahpa.com/flash/files/mavipikakubuterimefojojaf.pdfIn PDF document text
- http://mrcookie.tw/upload/editor/file/022231031805.pdfIn PDF document text
- http://verkaufs-akademie.com/userfiles/file/pamuporuxizule.pdfIn PDF document text
- https://dragonexpressml.com/userfiles/files/78445436192.pdfIn PDF document text
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/xiwefebopupaxujunos.pdfIn PDF document text
- http://dinhviht.com/images/newtech/files/85552485545.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/22649953435.pdfIn PDF document text
- http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/rugedu.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/8831860349.pdfIn PDF document text
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/b3c35f1bdc1fcbcc56a58965a03ceef1/42782590269.pdfIn PDF document text
- https://thuaphatlaihanoi.net/uploads/files/betepukafodefejomefa.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16130db69da450---93502845282.pdfIn PDF document text
- http://bekkercoon.ru/ckfinder/userfiles/files/57068878184.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=top+ios+tower+defense+gamesPDF 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_off0000e2f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F3 | 18516 bytes |
SHA-256: e9075670188070ff018ccd72cf8146e6c93b9a367131dd1475153aac542c5711 |
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font_01_sfnt_off000113cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012be3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BE3 | 10844 bytes |
SHA-256: 1965ddf33a5f5546fdc45ffdaefe7e9fa8c79a04cb8c588adf522b5747412c3f |
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