MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier with high confidence. It contains a large number of external links, many pointing to other PDF files, suggesting a link farm or distribution mechanism. One of the primary external URLs identified is 'https://jacksth.ru/award?keyword=martin+luther+95+theses+list', which is suspicious due to its generic keyword and domain structure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://jacksth.ru/award?keyword=martin+luther+95+theses+list PDF link annotation
- https://static.s123-cdn-static.com/uploads/4368218/normal_5fe3ab8f1e927.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490369/normal_603e2aee27249.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448110/normal_60357b34c9f47.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373504/normal_60075e7a1c8cf.pdfIn PDF document text
- http://afracheat7.xyz/beyblade_metal_fusion_games_freec5cx4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414176/normal_5fce745857f2a.pdfIn PDF document text
- http://oyuncuxx.com/how_to_adjust_resistance_on_cycleops_mag_trainer3c7ic.pdfIn PDF document text
- http://top-shop-store.website/speed_slow_on_iphonekf35n.pdfIn PDF document text
- http://scm03.ru/edtpa_task_2_elementary_literacylwfmc.pdfIn PDF document text
- http://storeplus.pro/poetry_is_what_gets_lost_in_translation_robert_frost6lusx.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/8bce2623-9dd9-4631-a7c9-30e1c2031595/29479716966.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/945fef2e-c329-4377-a5f6-1a3b04f6f665/how_to_program_logitech_harmony_700.pdfIn PDF document text
- https://9526c93a-d340-4dca-b5fd-2864ff0888c4.filesusr.com/ugd/4c3d6a_faecefe520944842af314aa10fc24f64.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a7e47bff-7ffe-4965-a74f-f5250361f708/computing_books_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af55fd3d-b7db-416e-84df-977dc814ec08/16574963162.pdfIn PDF document text
- https://254b3b0b-79dc-4992-827c-fd4bb3db3178.filesusr.com/ugd/f515ca_413244831daa453c91026405f51b7108.pdf?index=trueIn PDF document text
- https://8a89c5bc-485b-4808-980c-66c60e8d9908.filesusr.com/ugd/834936_f25401ae7ac04e1aa647d8b4fc5969e0.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/21c291bb-93aa-4c68-bc42-055d8666b5df/lista_de_verbos_en_ingles_en_pasado_simple.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7a9ce0bd-7c6a-4455-8e07-829798fda15d/razupazena.pdfIn PDF document text
- https://91953a53-6f32-4f2a-9b2e-0f954541ff31.filesusr.com/ugd/dad90e_9a8a932d6dde4b79af1ebeb7da869115.pdf?index=trueIn PDF document text
- https://7f993087-45f6-41f4-96e5-9dcaca18fb91.filesusr.com/ugd/9a92dd_cd7f819423ac4444a16cdf71b77d1de3.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_off0000f1dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1DD | 5056 bytes |
SHA-256: 5b1e6955f243608c1f315604a95ba934cf5536650e8809e75c157cc0cf576108 |
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font_01_sfnt_off00010311.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10311 | 10240 bytes |
SHA-256: 59cbe6201b00baf51a70a0a238a6f07d384ae2b916709e867c69a65555824995 |
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