MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The embedded URL `https://jumiwimov.ru/strik?utm_term=glencoe+algebra+1+chapter+2-4+answer+key` indicates a lure related to academic answer keys, likely to trick users into visiting malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.
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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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://jumiwimov.ru/strik?utm_term=glencoe+algebra+1+chapter+2-4+answer+key PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403673/normal_6055f88fd5bea.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409393/normal_60481996e211f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388619/normal_606dd41d73bb1.pdfIn PDF document text
- https://mofizuzu.weebly.com/uploads/1/3/4/3/134316779/darawav.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416928/normal_604cb725f0ee8.pdfIn PDF document text
- https://fedubipogumuwu.weebly.com/uploads/1/3/1/3/131379546/juwilotakulupib_nuvatuxuxo_gerolex_lesar.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426676/normal_60469a5b63bc6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369308/normal_5fe1b36d27963.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467601/normal_6062a31ca457b.pdfIn PDF document text
- https://nedotumawu.weebly.com/uploads/1/3/4/6/134626041/1372170.pdfIn PDF document text
- https://lopolovugafi.weebly.com/uploads/1/3/4/1/134109017/6353002.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481161/normal_605671d7acf2b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412377/normal_605ba3a2607f9.pdfIn PDF document text
- https://wanezevidika.weebly.com/uploads/1/3/4/5/134588498/fitedujixipafop.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383802/normal_5fc8785fb5eb1.pdfIn PDF document text
- https://niritamin.weebly.com/uploads/1/3/4/4/134486676/8624955.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448341/normal_603b5c1c58d68.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369512/normal_602f3a8b879f4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374951/normal_6057ddd3c754e.pdfIn PDF document text
- https://nepejudakolop.weebly.com/uploads/1/3/4/8/134876169/3294976.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_off0000fd25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD25 | 5928 bytes |
SHA-256: 1eda1f99c43a98765192bb9c19e7565bcfb905d7b6b87ffd5e8c782af14a71bb |
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font_01_sfnt_off0001117c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1117C | 11948 bytes |
SHA-256: f17f51e6fab306eed53dba08736ffe3c6983ab494e71353fc57a3734356a368f |
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