MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many pointing to disposable hosting, and is flagged as a link farm. The primary URL, 'https://jottigo.ru/award?keyword=ulcerative+colitis+diet+plan+pdf', suggests a lure related to health information to entice users to click. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://jottigo.ru/award?keyword=ulcerative+colitis+diet+plan+pdf PDF link annotation
- https://cdn.sqhk.co/kogeledewafo/jhuzohe/59092611624.pdfIn PDF document text
- https://cdn.sqhk.co/fidegelotag/hFdhdgh/debabuvozenotem.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://11ca5eb4-0abe-4d5d-8073-3f36f6088e80.filesusr.com/ugd/8b62d8_6d0cdaf4fa2c43609c6f2aab384b87a8.pdf?index=trueIn PDF document text
- https://5a4e7950-e122-4b3c-9cf7-894e7f5b1216.filesusr.com/ugd/76aeb6_a8480a68dce1463fa94ba82dfeabe955.pdf?index=trueIn PDF document text
- https://93dbb2ad-f1e8-4c6c-adfd-2ef134399473.filesusr.com/ugd/df4650_3b695779c3944f3e9b505583ac759883.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kovozenamofox/mackay_tv_guide_thursday.pdfIn PDF document text
- https://e1eccfe9-8888-4f52-a155-e9c8e84e0752.filesusr.com/ugd/4fb05f_2e4189f0e2ef4800abf374dd06b35491.pdf?index=trueIn PDF document text
- https://ec679cc6-872a-45a8-b2fd-b1bc8f6ddb77.filesusr.com/ugd/d1d005_009328506e614ddfa728366af38ce008.pdf?index=trueIn PDF document text
- https://75cc4b12-69da-4024-8422-75f9303faa99.filesusr.com/ugd/d6c222_3271742bbe15419b8bb58ea120543ab5.pdf?index=trueIn PDF document text
- https://3dcfbd4a-ef33-49dc-a04a-0aaf5307c30d.filesusr.com/ugd/b47706_ef7687d3842a4a38b54e918d7447ddc5.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/susonanezaj/labalulaxe.pdfIn PDF document text
- https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_aec2ffc6eb154dddb11fe91f280e3c1a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/batoragubukepo/reniform_nematode_life_cycle.pdfIn PDF document text
- https://s3.amazonaws.com/jugobimuraje/adobe_photoshop_cs6_free_32_bit.pdfIn PDF document text
- https://cae2aa39-5014-47ec-b549-0fed73f36d02.filesusr.com/ugd/c8683e_8718ccab9b474dc4b0e7791225933baa.pdf?index=trueIn PDF document text
- https://0ecef3a8-5193-4df1-8dcb-1b7dd0f2be2a.filesusr.com/ugd/e6092c_5ecd71bd4c614954872d939faa27cf5b.pdf?index=trueIn PDF document text
- https://43cb2d18-1589-43a7-b1c5-fe1278e1c76d.filesusr.com/ugd/370b54_73caf3a6b1c84900af988fe9bf7f16c0.pdf?index=trueIn PDF document text
- https://e6b56e3c-1b88-4cfb-972d-ab1702b0a06e.filesusr.com/ugd/8c0e65_2f2a92f86ed14998927f129771beb198.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gekixadonuru/nimomoxowof.pdfIn PDF document text
- https://77047a80-9f17-4504-a563-a097c25ca12e.filesusr.com/ugd/5c8b2f_a0ad2593983149e391d490e9bd62bcfd.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_off0000ea84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA84 | 5200 bytes |
SHA-256: b60d36b1d68db3c19c83c327472ad8d08a468f56af9f4d37e1868e3161ca6f0f |
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font_01_sfnt_off0000fc4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC4E | 11244 bytes |
SHA-256: fc204e3cb1c489b73a9db4d59d3af5ae53728ab63d0ddfec299e8fd54511ef26 |
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