MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating the presence of external URIs and embedded URLs. The document body, though heavily obfuscated, suggests a lure related to 'free letter s tracing worksheets', combined with a visual download button heuristic. The primary malicious URL, https://jumiwimov.ru/123, is likely used to deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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://jumiwimov.ru/123?utm_term=free+letter+s+tracing+worksheets
- http://xenalebosob.scienceontheweb.net/vampire_diaries_books_plot.pdf
- http://wewogokuwidu.mywebcommunity.org/orbit_sprinkler_timer_manual.pdf
- http://zovolexune.sportsontheweb.net/78194998480.pdf
- http://fogejebimo.scienceontheweb.net/cephalocaudal_principle.pdf
- http://vevufilusik.scienceontheweb.net/mappa_cefal.pdf
- http://kemytbok.xyz/employees_supervised_means_on_applicationinow6.pdf
- http://frankiearvelo.com/vudivodozimu55sme.pdf
- http://supernefritroller.xyz/harry_potter_filmed_castlefklnw.pdf
- https://luzulobopado.weebly.com/uploads/1/3/2/6/132681737/pumasegux.pdf
- https://rakositove.weebly.com/uploads/1/3/4/5/134595637/bozifasumujevus_zupisekiju.pdf
- http://tapagigozi.medianewsonline.com/sumoru.pdf
- https://womomoko.weebly.com/uploads/1/3/4/8/134848640/7165578.pdf
- http://xugaguf.mypressonline.com/zivodipalodemo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/lomogas/casio_privia_px-_160_manual.pdf
- http://gaxilitexu.onlinewebshop.net/etiology_of_diabetes_mellitus_type_2.pdf
- https://s3.amazonaws.com/xanunafojuloki/69835051849.pdf
- https://s3.amazonaws.com/pukiza/basketball_logo_design_template.pdf
- https://s3.amazonaws.com/wizomoravazub/9426675543.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_off0000c7f9.bineafac37781ce50d689624654d2c2f77ad57ecb77be98970ab3920886c3792316 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7F9 | 5172 bytes |
font_01_sfnt_off0000d99d.bin408da09fc31e85c04c86dfad8f2dd7c59abbbff481ebf572368f6777b2c29f5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD99D | 10836 bytes |
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