MALICIOUS
144
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating it's an advance-fee scam lure. The document body, though heavily obfuscated, suggests a theme of 'natural selection worksheet pdf answers', likely a pretext to encourage downloading a malicious payload from one of the embedded URLs. The presence of multiple external URIs further supports the download-and-execute attack pattern.
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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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://bologen.ru/wix?keyword=natural+selection+worksheet+pdf+answers
- https://cdn-cms.f-static.net/uploads/4485942/normal_60237e5fdb21e.pdf
- http://fuckfrsky.com/background_color_android_studio_xml5o2e6.pdf
- https://static.s123-cdn-static.com/uploads/4408176/normal_5ff5380c38f15.pdf
- http://wow50.pro/86559906622j699z.pdf
- http://lnstagramcopyrightcenter.com/assir_mataro_cita_previas6d5k.pdf
- https://cdn-cms.f-static.net/uploads/4488556/normal_60273c874c1ab.pdf
- https://static.s123-cdn-static.com/uploads/4408862/normal_5fcd6cb4162d4.pdf
- https://cdn-cms.f-static.net/uploads/4475392/normal_6029e8e467032.pdf
- https://static.s123-cdn-static.com/uploads/4479474/normal_5fe20086a7588.pdf
- http://chestlune.online/amman_thalattu_kummi_pattu0wczg.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://xofafatererowu.rf.gd/dovilenofinaburetexonona.pdf
- http://zegudonokor.epizy.com/82181004366.pdf
- http://nivewurunowu.rf.gd/arobnjak_iz_oza.pdf
- http://dixadenidufudu.epizy.com/regakeduwopanufeduzariki.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000188a6.binf555a459a0f45b181a4481322bc0b4d30d60e5891a357b4280181651c3515186 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x188A6 | 5368 bytes |
font_01_sfnt_off00019afc.bin6427b6ed0511da4620f7bc3f0978d303328db8ded5ab018a3c68f57d21fb76a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19AFC | 11760 bytes |
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