MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. One of the primary URLs, 'https://crysiq.ru/pbw?utm_term=chemistry+class+12+chapter+1+notes+pdf', is presented with a search term that implies educational content, likely to deceive users into clicking.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://crysiq.ru/pbw?utm_term=chemistry+class+12+chapter+1+notes+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4419236/normal_6057dea9ec9c4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4380699/normal_60092b058bc81.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387218/normal_604973834a178.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486763/normal_5fe6efeadf3ba.pdfIn PDF document text
- https://tozafutesaf.weebly.com/uploads/1/3/4/9/134900259/3148812.pdfIn PDF document text
- https://juliraviwuziw.weebly.com/uploads/1/3/4/2/134267057/lonidugojud.pdfIn PDF document text
- https://duzufekiwavana.weebly.com/uploads/1/3/4/6/134609718/katepana-sulixejibi-nepomozu-dapenu.pdfIn PDF document text
- https://pufopobumosuv.weebly.com/uploads/1/3/0/7/130776602/1dea3b305.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379742/normal_6021b9ab183ab.pdfIn PDF document text
- https://figunetu.weebly.com/uploads/1/3/4/3/134353482/4326565.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427093/normal_600cf173779a1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471252/normal_60274a58a8206.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://joraxakegeg.pbworks.com/f/josazoke.pdfIn PDF document text
- http://mapijakemifo.pbworks.com/f/fejafezi.pdfIn PDF document text
- http://samunoge.pbworks.com/w/file/fetch/145122714/35956628723.pdfIn PDF document text
- http://siboxij.pbworks.com/w/file/fetch/145005216/apkshub_minecraft_pocket_edition.pdfIn PDF document text
- http://torefobomuzu.pbworks.com/w/file/fetch/144868008/evga_gtx_970_price_in_pakistan.pdfIn PDF document text
- http://gatasulupu.pbworks.com/w/file/fetch/144422343/10889705839.pdfIn PDF document text
- http://giresizuloki.pbworks.com/f/gta_san_data_file.pdfIn PDF document text
- http://gibudufu.pbworks.com/f/how_to_put_water_in_polaroid_speaker.pdfIn PDF document text
- http://wisarazed.pbworks.com/w/file/fetch/145269936/zolagifiwofiv.pdfIn PDF document text
- http://dokadeku.pbworks.com/w/file/fetch/145109754/muwipuwanixusuvanumizo.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012424.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12424 | 5588 bytes |
SHA-256: 489e3ff385ca45dc857a19bc0f9d407f840ad50d884557aa5f12a440b76e8879 |
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font_01_sfnt_off00013703.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13703 | 12176 bytes |
SHA-256: 7cd298f56130fd648f2630a8c37812594d78c69874758db0cfbcce9c52445b9a |
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font_02_sfnt_off000160b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x160B3 | 16088 bytes |
SHA-256: 3c1c7bd747a9a8f6e1c531457064e9378d9a893e5271ac7381d9d0015290d8f4 |
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