MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, disguised as an 'answer key'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of compromise, designed to lead the user to a harmful site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 4
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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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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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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://gettraff.ru/strik?utm_term=answer+key+to+cpm+cc+algebra
- https://cdn-cms.f-static.net/uploads/4388169/normal_5f92441aba7db.pdf
- https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/jajixakopokeru-zebosaw-xosevuzid.pdf
- https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/nikufuxijar_fulesakej_xunogisasaxe.pdf
- https://cdn-cms.f-static.net/uploads/4379221/normal_5f8fa68f0b7f3.pdf
- https://vosuliliwux.weebly.com/uploads/1/3/4/7/134713435/297237.pdf
- https://tipiridevozono.weebly.com/uploads/1/3/4/3/134349557/rozupirenapaja.pdf
- https://cdn-cms.f-static.net/uploads/4418778/normal_5f9c7c76a8ed8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static1.squarespace.com/static/5fc4daea8787e879898531d2/t/5fc7a7a63ac9c763f4de9479/1606920102627/singing_machine_ios_mobile_karaoke_app.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd02c92edfcd2bda92345e/1606222537841/unclaimed_property_act_nebraska.pdf
- https://static1.squarespace.com/static/5fc59d7c68612547ed7e118f/t/5fca231cec1d586fb39508c6/1607082782069/billie_eilish_wallpaper_iphone_2019.pdf
- https://static1.squarespace.com/static/5fc10fb5bda9c57a97bf17be/t/5fc234d6e6d49a06bbdbfafb/1606563030670/7046939129.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cf84.binc5e3a892f7200b844efed0c299c7f3c82e10a8bdf1bc782c11df912ce6200ca9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF84 | 2888 bytes |
font_01_sfnt_off0000d9ce.bin8f35de8513f17bd61aff5c98f7877fdddda4531ebcf9e60b6e1f0174a002219d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CE | 5640 bytes |
font_02_sfnt_off0000ed06.bin3771712c8e59cd84000b141194c270dd05aaba38c7551ff0ad4827a16664861d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED06 | 10744 bytes |
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