MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, many of which appear to be part of an SEO link farm designed to redirect users. The primary malicious URL identified is https://kuzutuzo.ru/123?utm_term=frost+sullivan+reports, which is likely used for phishing or to serve a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/123?utm_term=frost+sullivan+reports PDF link annotation
- https://nadarikiwuxat.weebly.com/uploads/1/3/2/7/132712530/vorelena.pdfIn PDF document text
- https://wudigunufite.weebly.com/uploads/1/3/4/6/134611509/318fb038.pdfIn PDF document text
- https://nakabupibuf.weebly.com/uploads/1/3/4/6/134608610/kitizumir_nudufovi_vuxupula.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408324/normal_5ff28e3d181a3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476127/normal_5fe8ef1483af2.pdfIn PDF document text
- https://soremezu.weebly.com/uploads/1/3/1/0/131070226/c85a3af5de0f1d.pdfIn PDF document text
- https://tawixepew.weebly.com/uploads/1/3/0/7/130739069/zujor.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/legenapi/ancient_of_days_chords_g.pdfIn PDF document text
- https://56db2a4d-09ce-4ff6-a558-abb1d6727cd4.filesusr.com/ugd/003b86_05495368feac4b57886c3bdf95779c64.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wanalovum/fundraising_interview_questions_and_answers.pdfIn PDF document text
- https://s3.amazonaws.com/lowuwofuxali/2027904598.pdfIn PDF document text
- https://cdb53ace-3f3f-41e1-823e-0ecf3add8ba2.filesusr.com/ugd/47e9e0_dd3974724fdf41e9b43e598227ec9ae6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nefunupu/31657067622.pdfIn PDF document text
- https://6baea7ca-81e4-4a11-8410-716433a99462.filesusr.com/ugd/764aaa_c4149b609055407ca1eaf9f4cee39077.pdf?index=trueIn PDF document text
- https://c3373aeb-ed74-4f2d-b631-fa679e0a3f6f.filesusr.com/ugd/cbe7f7_f99ab83d7a0f4a99b4b87053625f1c2f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wamatasamegu/format_for_job_application_email.pdfIn PDF document text
- https://s3.amazonaws.com/lixuduwonifa/lusejilibipafadu.pdfIn PDF document text
- https://s3.amazonaws.com/bufipevuril/bomb_squad_apk_android_2._3.pdfIn PDF document text
- https://s3.amazonaws.com/bexolamabad/62556049705.pdfIn PDF document text
- https://s3.amazonaws.com/sifawekujiki/graphing_sine_and_cosine_transformations_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/lanubili/come_si_ottengono_i_crediti_formativi.pdfIn PDF document text
- https://s3.amazonaws.com/megodipewukitoj/66928380947.pdfIn PDF document text
- https://s3.amazonaws.com/numunenoji/98614713282.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_off0000f44a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44A | 4828 bytes |
SHA-256: 22556a8fa8d9d8c6e4df92b9019ff9bed3340436fd5ba073dc07f58b9f21e85b |
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font_01_sfnt_off000104ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104CE | 11700 bytes |
SHA-256: cb30c8928baf73d6563acd4af054340a0437de687e25a72f87113384335c2dcb |
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