MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many hosted on disposable domains, indicating a link farm or phishing attempt. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest this malicious intent. ClamAV also detected it as 'Pdf.Phishing.Trojan'. The embedded URLs are likely used to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://midufefew.ru/award?keyword=isoniazid+davis+drug+guide+pdf PDF link annotation
- https://vexifodukegaze.weebly.com/uploads/1/3/5/9/135977609/2904202.pdfIn PDF document text
- http://instasurprise.online/13802673907l9ugc.pdfIn PDF document text
- http://bizifemodefi.mygamesonline.org/jiwujelabawanizudegoname.pdfIn PDF document text
- http://i12tws.website/kejalepimarejufati2xqyl.pdfIn PDF document text
- https://lugexobamav.weebly.com/uploads/1/3/5/9/135965248/2657396.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485943/normal_5ff50d0f4daab.pdfIn PDF document text
- https://ziriponu.weebly.com/uploads/1/3/2/6/132696112/letubufed.pdfIn PDF document text
- https://dazafilitekanib.weebly.com/uploads/1/3/5/9/135977429/522211.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403140/normal_60371041a8be6.pdfIn PDF document text
- http://noxogejukebe.mypressonline.com/87573373659.pdfIn PDF document text
- https://debovibeki.weebly.com/uploads/1/3/4/7/134715081/vobaje_rijugizevivale_vunitud.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://746420f6-3007-491b-ba72-fd43be5094e5.filesusr.com/ugd/277b62_716d1853c2f84d15b80430e002b03287.pdf?index=trueIn PDF document text
- https://917ed8d3-8a9f-4c5c-a3ad-554e533308ad.filesusr.com/ugd/a4e402_003a3d9824f3436791f9c49d3a7113bf.pdf?index=trueIn PDF document text
- http://rewuwuja.onlinewebshop.net/belajar_excel_2020_pemula.pdfIn PDF document text
- http://surafupomef.epizy.com/secretory_tissue_in_plants.pdfIn PDF document text
- http://xatidewivi.epizy.com/27773252189.pdfIn PDF document text
- http://vesedakowata.onlinewebshop.net/will_humans_live_forever_someday.pdfIn PDF document text
- http://runuwug.myartsonline.com/fabaxodogadakifujorizi.pdfIn PDF document text
- https://46ebecaa-9490-439b-bba6-ee77f1a6ca93.filesusr.com/ugd/cee8a1_b477a4c994174efe811bc933346fe9f4.pdf?index=trueIn 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_off0000e2dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DD | 5224 bytes |
SHA-256: ea7dc0d983d87005c16270f2596c99b7c3188817016c170debd0a423011202e9 |
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font_01_sfnt_off0000f4c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4C6 | 11136 bytes |
SHA-256: 06982d23af51da810cb9b15ffb2efe4a80b9a298db8f52f33b020601e50fad27 |
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