MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm used for phishing or malware distribution. The document body, though heavily obfuscated, appears to be related to educational content, likely a lure to disguise the malicious nature of the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://jacksth.ru/123?utm_term=factorising+ks4+worksheet PDF link annotation
- http://iclod.tech/warhammer_40k_rulebook_free7iuyf.pdfIn PDF document text
- http://sunufosabupes.scienceontheweb.net/21363984146.pdfIn PDF document text
- https://norajaxufok.weebly.com/uploads/1/3/4/6/134611117/girelajapekup_fujaxozados_lavowejozisujan.pdfIn PDF document text
- http://replyua.site/polojekodufogafupupu16m7t.pdfIn PDF document text
- http://nely.xyz/guwudaxatubukevigikuxurnkiq5.pdfIn PDF document text
- https://vozozexofevufut.weebly.com/uploads/1/3/1/8/131871902/zadegovuxotuderosur.pdfIn PDF document text
- http://drnextact.xyz/401507711312x7js.pdfIn PDF document text
- https://nizakibete.weebly.com/uploads/1/3/4/3/134386075/7083764.pdfIn PDF document text
- http://requiremcgood.com/82295098984jcng1.pdfIn PDF document text
- http://gapilojazixo.getenjoyment.net/waladuxigoped.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://15319a82-8c66-4906-b3c2-464277991f2b.filesusr.com/ugd/070acf_6db971942213401588d56252b694faab.pdf?index=trueIn PDF document text
- http://nofolimuri.myartsonline.com/english_literary_devices.pdfIn PDF document text
- http://pusebirenox.myartsonline.com/5601040069.pdfIn PDF document text
- https://8d2868a3-57b7-484c-81f6-493c1c4f5daa.filesusr.com/ugd/a8ca0f_02e1206892d04ce98bddf97336ea3f4a.pdf?index=trueIn PDF document text
- https://45ae50e1-98a8-4501-9ad6-fc0df438eb43.filesusr.com/ugd/b16523_67c2d05872c2401fb95d055058fb66cd.pdf?index=trueIn PDF document text
- https://99470c7d-c692-4648-a7b8-36ea19db2883.filesusr.com/ugd/ab059d_b904f400a67449d9ba79f7e29704122e.pdf?index=trueIn PDF document text
- http://buvizukiwixo.rf.gd/battle._net_fr_mac.pdfIn PDF document text
- http://siginexexurop.epizy.com/article_rewriter_tool.pdfIn PDF document text
- http://mowosafawun.rf.gd/vidujijepowesezenepaj.pdfIn PDF document text
- https://c6f55193-7475-4343-97dd-33cb3b141b6a.filesusr.com/ugd/808d8c_dc9858f197c4487384b527458fd735c3.pdf?index=trueIn PDF document text
- https://7b4e975e-109f-4397-a679-93e438ff1453.filesusr.com/ugd/c33f71_dd29b64c095444d8a42e292240c3189e.pdf?index=trueIn PDF document text
- https://128fc002-9ed4-4a8f-9a6b-83b43563a9ed.filesusr.com/ugd/6812d7_8073f3a0e5e2445f9638bb6b4db52cbd.pdf?index=trueIn PDF document text
- http://fukorow.epizy.com/wuwidab.pdfIn PDF document text
- https://b3a1a1c9-4f8f-4fb8-b7cc-7339030cc889.filesusr.com/ugd/162fe6_d2bc34a587af413eb2269813084c1543.pdf?index=trueIn PDF document text
- http://gukofeverozek.rf.gd/basic_electronics_questions.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_off0000f1a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A7 | 5228 bytes |
SHA-256: e16f4959112f413ad8eeb4ea676bc6b07299e255cdafceb2b6c9eb0e3df33e53 |
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font_01_sfnt_off0001038a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1038A | 11256 bytes |
SHA-256: 68d1c5d91ebcd78dfe87666d2b00afe95e2ca6c62c4821409c8dc90dc6155c4a |
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