MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a high-confidence heuristic indicating it is a lure for SEO redirectors, specifically for 'free-download phishing'. The embedded URL, https://trafffe.ru/123?keyword=2015+bls+student+manual+printable+free, is presented as a link to a student manual, aiming to trick the user into clicking. While no scripts were explicitly extracted, the ML classifier strongly flagged this PDF as malicious, suggesting it likely exploits PDF vulnerabilities or uses embedded content to achieve its malicious goal.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://trafffe.ru/123?keyword=2015+bls+student+manual+printable+free PDF link annotation
- https://cdn-cms.f-static.net/uploads/4381547/normal_5f9af97d5ef4f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366406/normal_5f87dcc0ba6b7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/felasorarabipis/22831358181.pdfIn PDF document text
- https://s3.amazonaws.com/fekazudabo/possibilism_example_ap_human_geography.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b0e3de55-a6b0-43c7-846e-1275c0ff9cf7/damien_rice_torrent.pdfIn PDF document text
- https://s3.amazonaws.com/fajixe/37936952188.pdfIn PDF document text
- https://s3.amazonaws.com/zuguvoxoki/carnival_sunrise_deck_plan.pdfIn PDF document text
- https://s3.amazonaws.com/zetare/mutadisilat.pdfIn PDF document text
- https://s3.amazonaws.com/kizugokofo/84763003354.pdfIn PDF document text
- https://s3.amazonaws.com/magapeguwabe/speed_of_trust_cards.pdfIn PDF document text
- https://s3.amazonaws.com/pusori/34471693807.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1d3408d-6a60-42bb-830a-f67b6b672c82/zewopotogebapasokojijodo.pdfIn PDF document text
- https://s3.amazonaws.com/luropi/grim_dawn_shattered_realm_farming.pdfIn PDF document text
- https://s3.amazonaws.com/kigavanus/62958089407.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC0 | 5684 bytes |
SHA-256: 7e1c9498db01dab242b6b1811a8ea68c46b54f835ce3c1e9c824023817fdd80b |
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font_01_sfnt_off000072f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72F9 | 11676 bytes |
SHA-256: 89155b61a7461f1828e17858802a82890ea5d6696dc208222ead5f6015700709 |
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