MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The PDF contains numerous embedded URLs, with one specifically identified as an external URI pointing to 'https://jottigo.ru/strik?utm_term=niche+and+habitat+similarities'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is structured as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of numerous URLs and the link farm structure strongly suggest a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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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 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/strik?utm_term=niche+and+habitat+similarities PDF link annotation
- https://static.s123-cdn-static.com/uploads/4489977/normal_6009778d208ff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502236/normal_6011534c04006.pdfIn PDF document text
- https://cdn.sqhk.co/vixemujomu/jdliihb/blow_my_mind_official_video.pdfIn PDF document text
- http://newipufisatag.scienceontheweb.net/social_work_research_definition_quizlet.pdfIn PDF document text
- http://kesuvajeb.scienceontheweb.net/what_is_the_secure_5g_and_beyond_act_of_2020.pdfIn PDF document text
- https://cdn.sqhk.co/kidurukazag/qhfMbJd/dogodijefikuzotidavixivi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418981/normal_5ff7aff925050.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469349/normal_600361a24bd4f.pdfIn PDF document text
- http://mivifukatovaga.getenjoyment.net/number_theory_book_download.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454161/normal_5fce911b7aa4a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448976/normal_6036bc178a422.pdfIn PDF document text
- http://nekuwagibajese.getenjoyment.net/is_epic_the_best_emr.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://8cff94d3-ecab-4ea5-ad27-d3e67d02fd32.filesusr.com/ugd/2813e2_2c6ea18e922b43a48157e9d66f5e4ec8.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2d993ea3-0454-4362-803e-0f18deea7847/is_dork_diaries_a_girl_book.pdfIn PDF document text
- http://bopisumeku.atwebpages.com/31722837834.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ce22b2d-b023-4b5a-8168-3bc1754d9ef4/nixijujosesaviwozisajugi.pdfIn PDF document text
- https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_4477426c82f74c76bf008777d289f788.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7a7f6aaa-874e-4dd8-870c-aa8fa7135322/how_much_do_refrigeration_technicians_make.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c09a282-21c7-4abf-9f0f-0a1495e34f35/google_image_search_api_android_example.pdfIn PDF document text
- https://abee6ad4-cf47-459a-954e-22b9b9bb30ad.filesusr.com/ugd/4bdc6d_d69d4962456349ac8e863c260b24b2e2.pdf?index=trueIn PDF document text
- https://c36efdde-2309-4ce2-a10d-b6df2ce12cd8.filesusr.com/ugd/e98059_e688d0989576453da3f69cfd4838c6cc.pdf?index=trueIn PDF document text
- https://bad3f395-1638-4667-b349-d6f934eeab49.filesusr.com/ugd/ed2d23_6b12708c5c7c47a2ae2bb0a741f678d0.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cad5c44f-98bb-495b-ab0d-99150a3be177/kinikozavosazik.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_off0000f11b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF11B | 5288 bytes |
SHA-256: 3e974bb8b8a60a7fd8752d0d0016d4e859cbd755704cfae0b40f1f139b99ff79 |
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font_01_sfnt_off000102ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102EA | 10660 bytes |
SHA-256: 69cc567fa8abb9f8120abd85567ebab221410beeaab3e429b85e317d3502000e |
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