MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains embedded URLs that lead to potentially malicious files, disguised as a worksheet answer key. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to download further content. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a likely social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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://traffset.ru/123?keyword=fission+and+fusion+worksheet+answer+key PDF link annotation
- https://jivexine.weebly.com/uploads/1/3/1/3/131380908/cf83950309.pdfIn PDF document text
- https://kuvinonufero.weebly.com/uploads/1/3/4/3/134307364/0feaea8ae6.pdfIn PDF document text
- https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/fetewafokapujojajum.pdfIn PDF document text
- https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/f4698b929c3963.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
- https://pubosepiko.files.wordpress.com/2020/11/50355376148.pdfIn PDF document text
- https://fazojikimugu656942302.files.wordpress.com/2020/11/sea_of_thieves_theme_sheet_music.pdfIn PDF document text
- https://juvibix.files.wordpress.com/2020/11/gabizagamumarokidatanum.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d30734e3-98d9-428c-b20c-5ecafff83862/fesirajowolaketexudi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2a0ec0b-d236-449c-964e-e257cb463e7c/vajefosurisolo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25764107-78c7-4910-a51e-09f3922444e5/kizulabez.pdfIn PDF document text
- https://jazurefemufu.files.wordpress.com/2020/11/sistema_de_proyeccion_americano.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4820f77a-aa87-4e32-9e97-e67d6c3c8546/nadegosatiror.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e88bb029-0946-44a2-9cdf-37021ddd655e/patuvubipo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e238bd8-3b95-4f57-8c19-2fa0e94d5914/41748526854.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_off000052aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x52AA | 5060 bytes |
SHA-256: 6af69dae43ace68bb36c21cf19a57d77c1c7761fe26717254353a9a8c0f769b2 |
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font_01_sfnt_off000063e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63E8 | 9536 bytes |
SHA-256: 157299bae2b1ed0bcb74a8a75698d833e4bdc0e3b78b713216d90bccb6462903 |
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font_02_sfnt_off0000846c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x846C | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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