MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with one identified as a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The heuristic 'SE_URGENCY_LURE' suggests the document body, though heavily obfuscated, likely contains text designed to prompt immediate user action, such as clicking the malicious link.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than 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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://yafferge.ru/aws?utm_term=lumosity+brain-+training+app+free+to In PDF document text
- https://cdn.sqhk.co/buzomesil/ibrOghH/22846193296.pdfIn PDF document text
- http://present-mag.ru/grand_prison_escape_3dhjym3.pdfIn PDF document text
- http://flylovel.com/29876339003kzr5.pdfIn PDF document text
- http://copyrightsupportforlnstagram.com/57852969920hnl5y.pdfIn PDF document text
- http://infonewstravel.com/download_looking_for_alaskatpy58.pdfIn PDF document text
- http://nazhivy.net/3775796601nonco.pdfIn PDF document text
- http://wowunoli.22web.org/58478057253.pdfIn PDF document text
- https://cdn.sqhk.co/mikevoponage/ciiLhat/65640588049.pdfIn PDF document text
- http://paruweropu.iblogger.org/sizinawono.pdfIn PDF document text
- http://filmera.ru/28499517465lt2g.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://funogexux.rf.gd/anrufe_sperren_android.pdfIn PDF document text
- https://s3.amazonaws.com/bulolimepol/pugevopoguf.pdfIn PDF document text
- http://tupemovon.rf.gd/zikulufitomazuwusula.pdfIn PDF document text
- http://jobifizokugo.rf.gd/adda52_live_apk.pdfIn PDF document text
- http://safatagikev.rf.gd/97110306996.pdfIn PDF document text
- http://gurevetafajes.epizy.com/dulifomigupibewanu.pdfIn PDF document text
- https://s3.amazonaws.com/levumoduf/boolean_algebra_objective_questions_and_answers.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://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B8 | 5284 bytes |
SHA-256: 2791abaf7303af6b8e57bc6481d1d1e63a31fdbe19a9fdfbf9e3ddf513e95079 |
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font_01_sfnt_off0000f6ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6AB | 10996 bytes |
SHA-256: 74b6300c0a2d856e67441e6827b4f05ae7fc3b70d779b1e08b084484de2c8305 |
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font_02_sfnt_off00011c09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C09 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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