MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs pointing to potentially harmful content. The heuristic 'PDF_SEO_LINK_FARM' suggests a large number of links, and the presence of URLs like 'https://nipisod.ru/wix?keyword=...' indicates a potential phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://nipisod.ru/wix?keyword=%25D0%25B0%25D1%2583%25D0%25B4%25D0%25B8%25D0%25BE+%25D1%2583%25D1%2580%25D0%25BE%25D0%25BA%25D0%25B8+%25D0%25B0%25D0%25BD%25D0%25B3%25D0%25BB%25D0%25B8%25D0%25B9%25D1%2581%25D0%25BA%25D0%25BE%25D0%25B3%25D0%25BE+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%25BD%25D0%25BE+mp3 PDF link annotation
- https://cdn.sqhk.co/kugefaxeker/dhbjdjf/21105570017.pdfIn PDF document text
- http://katermore.ru/vision_pro_8000_owners_manuala1vg8.pdfIn PDF document text
- http://amsidisi.xyz/voltas_ac_error_codeazh25.pdfIn PDF document text
- http://polikarmonolit.ru/subtitles_of_accidentally_engagedsd630.pdfIn PDF document text
- https://cdn.sqhk.co/lilanoto/rDAiebO/fitted_sheet_fold_with_elastic.pdfIn PDF document text
- http://natorg.fun/romeo_y_julieta_1875_bully_belicoson9fga.pdfIn PDF document text
- https://cdn.sqhk.co/metajewamiva/iMEs4ij/xabemabadi.pdfIn PDF document text
- https://cdn.sqhk.co/noneniwetav/hcLHyhh/fofowewavegomonat.pdfIn PDF document text
- https://cdn.sqhk.co/tononapiwaso/eFyig3D/minecraft_worldedit_plugin_1._15._2.pdfIn PDF document text
- https://cdn.sqhk.co/zuzudumijamo/5IAQb0N/cosmopolitan_meaning_sociology.pdfIn PDF document text
- http://ottics.ru/r_code_tutorialoog4y.pdfIn PDF document text
- https://cdn.sqhk.co/zowonefaso/ajuhbXk/fifilitujufefufir.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://7d14b3fe-44ab-47f5-a5a4-fb5d7998febd.filesusr.com/ugd/ba499c_80e9d7dc0e5941ba9f974219370e7af2.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lowebemuwojiso/regla_de_tildes_en_espanol.pdfIn PDF document text
- https://54570836-76ea-4100-b78f-d1ba4c3cc0d1.filesusr.com/ugd/21ac59_7b64ac827bc84b6699f30aeb3aa5f573.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kodipopujufipig/budget_math_worksheets_free.pdfIn PDF document text
- https://e590c0d9-b694-44fb-9862-47327b30d8b0.filesusr.com/ugd/89363e_f2fb34d0564240f2b7197292e3e51054.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dazovosugev/mogakufi.pdfIn PDF document text
- https://54957a25-093b-4cbd-a4f0-8eb5fea931f0.filesusr.com/ugd/8ba634_3cdfd4d55f3d40d2b18ec31a126ca4ad.pdf?index=trueIn PDF document text
- https://a867a740-3546-49c9-bb92-c76f735cad7e.filesusr.com/ugd/c312ff_ff98ef9276564192b2c4b94897fdd824.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_off0000e94e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE94E | 6392 bytes |
SHA-256: 1d5fe763de82d70e99be7a29194afc72f9848565f7a0f1cd882d683e08e351da |
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font_01_sfnt_off0000fe0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE0B | 15528 bytes |
SHA-256: 82f51ca866462d9dbcec9ddfa033c76482b82fd13c102dd2102c87c09bd0fbb8 |
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