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 of which point to disposable hosting services, indicating a link farm designed to direct users to malicious content. The primary malicious URL identified is https://nipisod.ru/award?keyword=the+adventures+of+sherlock+holmes+pdf. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://nipisod.ru/award?keyword=the+adventures+of+sherlock+holmes+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4459054/normal_6052ff1c16a9a.pdfIn PDF document text
- http://hyipinvest.site/bases_purinas_y_pirimidinas_diferencias15rhk.pdfIn PDF document text
- https://cdn.sqhk.co/falupuvevore/hZ5agyf/european_soccer_championship_game_online.pdfIn PDF document text
- http://mikrotikwizard.com/58572300387dvxgg.pdfIn PDF document text
- http://telemprom.xyz/eve_online_pvp_skill_training_guide1diyx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428083/normal_6046cbcf9791a.pdfIn PDF document text
- https://cdn.sqhk.co/mibazudifij/iL6LT18/dls_brazil_profile._dat.pdfIn PDF document text
- https://cdn.sqhk.co/nifodotiriru/ihyjiek/swat_team_movie_actors.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493589/normal_604f0d22c0f09.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4377128/normal_5ff2835ea6de8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2a4c341d-9af7-4f89-b48a-1b926ad6ced7.filesusr.com/ugd/dd6616_dced7cf1ff6748e9873e7bea2e6a4ed2.pdf?index=trueIn PDF document text
- https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_25105c7ddf4e41baaae12a857f84513e.pdf?index=trueIn PDF document text
- https://f3b86e06-b3aa-4ee1-82f7-79049f3379a8.filesusr.com/ugd/0c4fd2_6145aa197e7142f081046a62e03c161b.pdf?index=trueIn PDF document text
- https://46b09160-81f9-4cb3-9cca-f7b5b0c0229e.filesusr.com/ugd/179cc6_25ac7e695fc547318a8b49da1da98e02.pdf?index=trueIn PDF document text
- https://6ba8113a-99dc-4618-97bf-d7180f10ff72.filesusr.com/ugd/b6edda_574ef15e6934492e96d1d8121373a136.pdf?index=trueIn PDF document text
- https://4b4ea461-5266-411b-8735-d5290551f550.filesusr.com/ugd/7fedcf_297e7972825c4e329eb890968ec070e5.pdf?index=trueIn PDF document text
- https://86146b48-cf95-488a-b5a0-22832f4589a6.filesusr.com/ugd/3b4eee_25987005f68841ecab8136927b248671.pdf?index=trueIn PDF document text
- https://e4fb9bf1-a3d6-4767-9bf2-2a1021e5dc09.filesusr.com/ugd/53cfc7_53abcd2743034edc9cb453464818e830.pdf?index=trueIn PDF document text
- https://5a995288-ce6f-4ae3-a3e6-14272d8003db.filesusr.com/ugd/7be1cd_16b1bd481d194bad83073fac090bd9dd.pdf?index=trueIn PDF document text
- https://3fb740b9-71d8-4183-8edb-de11b68c0a29.filesusr.com/ugd/1fbf8b_f95827509a4e46eaad3b5ae64fad3695.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_off00011afd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AFD | 5468 bytes |
SHA-256: 159a718fae02eb37fef92b709f96176455b6aa78347d4ef740a4f28eb103d2d3 |
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font_01_sfnt_off00012d7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D7A | 11592 bytes |
SHA-256: 9908e3527248abdbb70409852a11e7cfeeaf7274661d646682f81b122a13d21e |
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