MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains a large number of external links, with one pointing to 'vilenefex.ru', suggesting a link farm or phishing attempt. The document body is heavily obfuscated and unreadable, but the presence of external links and the heuristic 'PDF_SEO_LINK_FARM' strongly indicate a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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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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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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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://vilenefex.ru/award?keyword=conical+intersection+pdf
- https://cdn-cms.f-static.net/uploads/4366668/normal_6023b94327de3.pdf
- https://static.s123-cdn-static.com/uploads/4375503/normal_6007aa89b0ba5.pdf
- https://cdn.sqhk.co/rewazexi/wig60tQ/55585315178.pdf
- https://static.s123-cdn-static.com/uploads/4382771/normal_5ffbcd544a243.pdf
- https://cdn-cms.f-static.net/uploads/4476954/normal_6035b2cf52ca0.pdf
- https://cdn.sqhk.co/suxidixip/ghUiShh/xanejizidom.pdf
- https://cdn.sqhk.co/fenazijeguk/jdhjhcc/red_velvet_offline_kpop_wiki.pdf
- https://cdn.sqhk.co/worijekegir/herihhb/8974364429.pdf
- https://cdn.sqhk.co/lulufebexefe/eijgiij/97814560785.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/ee3dcf39-e538-4e22-9879-b26644e026f8/how_to_thread_a_old_singer_machine.pdf
- https://s3.amazonaws.com/zubuwujoxom/drama_korea_brilliant_legacy_subtitle_indonesia.pdf
- https://uploads.strikinglycdn.com/files/ccf4e5f5-1085-45ec-8696-76a333dce445/how_to_reset_income_tax_password_through_dsc.pdf
- https://uploads.strikinglycdn.com/files/53a7474d-a0fe-4d91-b0bd-186c520b8f2d/nupabebuvabum.pdf
- https://s3.amazonaws.com/lolaritemukole/sound_drivers_for_windows_7_64_bit_hp_pavilion_g6.pdf
- https://9abff256-b119-4e75-a612-dfc075f5428e.filesusr.com/ugd/c73517_922af3881a064cc087d488f29ddf9325.pdf?index=true
- https://uploads.strikinglycdn.com/files/5d2b4b93-9f45-4d1a-aa5d-ae7b992f6537/where_can_i_find_a_refrigerator_repairman.pdf
- https://s3.amazonaws.com/jifedefujodu/8205810129.pdf
- https://s3.amazonaws.com/wutogugej/walton_categories_of_art.pdf
- https://uploads.strikinglycdn.com/files/80c24fa4-f601-4de3-878a-2934aad3d338/how_to_get_aircel_port_number_online.pdf
- https://s3.amazonaws.com/mubefula/how_to_write_a_good_summary_4th_grade.pdf
- https://uploads.strikinglycdn.com/files/da42db94-ad6d-403e-be48-555ca54da233/how_to_change_my_beats_ear_pads.pdf
- https://uploads.strikinglycdn.com/files/c600d3df-0808-4d4c-88bb-1d91369fd63e/lean_mean_fat_grilling_machine_waffle_instructions.pdf
- https://94aa8f26-b07a-4c24-bdb4-4112657565c9.filesusr.com/ugd/37428b_e7d30f2eae81427299bd4e77df69e1cb.pdf?index=true
- https://uploads.strikinglycdn.com/files/a94c57dd-27b9-426b-bc82-8f194105da8d/55734038809.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001035b.bina549c600364e2e4169b9750286cd54071b7140a2706dc1223271890883eab271 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1035B | 5052 bytes |
font_01_sfnt_off00011497.bin8cd94cf3b03e7e309292c7bb1cfa23d799cdbf5adc8447c2bda2cce6cf592113 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11497 | 11512 bytes |
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