MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The document's content, though heavily obfuscated, appears to be a lure related to 'logical mathematical reasoning exercises'. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://kuzutuzo.ru/strik?utm_term=razonamiento+logico+matematico+ejercicios PDF link annotation
- https://static.s123-cdn-static.com/uploads/4392452/normal_5fe06e8bafae1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471085/normal_5ffcf5a9cab4a.pdfIn PDF document text
- https://xajasobuz.weebly.com/uploads/1/3/4/8/134861619/gefamogoto_foponiwo_vewijipogowusum.pdfIn PDF document text
- https://sofotegepure.weebly.com/uploads/1/3/4/5/134522016/9692648.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392472/normal_5ff66fec4f562.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4466659/normal_5ffc957114e7a.pdfIn PDF document text
- https://tewizoduwab.weebly.com/uploads/1/3/5/3/135341898/gidede.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371497/normal_60250f813c9e1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480182/normal_600fd8958d06a.pdfIn PDF document text
- https://poxosuliw.weebly.com/uploads/1/3/1/3/131383655/6803504.pdfIn PDF document text
- https://kimewazokedusa.weebly.com/uploads/1/3/1/4/131454536/fesijexuvuwa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4494430/normal_606e3d730c0eb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4410207/normal_5fc8430cd7352.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468530/normal_606e0d03baf34.pdfIn PDF document text
- https://mewopaxa.weebly.com/uploads/1/3/4/8/134848883/8119510.pdfIn PDF document text
- https://kedixomavej.weebly.com/uploads/1/3/4/0/134017366/wegel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367960/normal_60675f9d271b4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366959/normal_606c4cb5734f8.pdfIn PDF document text
- https://kiwotatuna.weebly.com/uploads/1/3/1/8/131856308/d1c95bfbe7a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390330/normal_6015d28b58ad7.pdfIn PDF document text
- https://zoxutelipiroga.weebly.com/uploads/1/3/1/8/131871488/354ba1590.pdfIn PDF document text
- https://pipamoximiketo.weebly.com/uploads/1/3/0/9/130969724/7571859.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000deff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEFF | 5252 bytes |
SHA-256: 88607fc98bef437a496606099e8d870c966a93e32674c13510e8207bcad523cb |
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font_01_sfnt_off0000f0de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0DE | 12528 bytes |
SHA-256: 36c6cb13b8d9a1751fc7fc1c6edab00d66545126d04f6be10e9aca621d70c6f3 |
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