Malicious PDF — malware analysis report

Static analysis result for SHA-256 075e6f2b6e1ca786…

MALICIOUS

PDF

73.5 KB Created: 2021-04-16 01:03:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92b1089ac60e0aca61b020e853970634 SHA-1: 56701080051abcf3e2d0b121e3ba88b735fdbf77 SHA-256: 075e6f2b6e1ca78624104605e0220cbe4205e6d80cabc4c898543c6b83620472
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains numerous external links, suggesting a link farm or phishing attempt, with a primary suspicious URL pointing to dugedepap.ru. The document body, though heavily obfuscated, appears to be a lure related to movie downloads, consistent with a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://dugedepap.ru/strik?utm_term=chronicles+of+narnia+prince+caspian+movie+download
    • http://sukotis.iblogger.org/excel_calendar_weekly_template.pdf
    • https://cdn.sqhk.co/xerejijasoma/4TGgexJ/kidif.pdf
    • https://cdn.sqhk.co/bepesewutu/cgdKQgf/motocross_bike_racing_game_download.pdf
    • https://cdn.sqhk.co/fupupusamun/jahciju/free_online_project_management_certification_programs.pdf
    • https://cdn.sqhk.co/dudugetogi/iajjDhb/seven_deadly_sins_grand_cross_character_release_dates.pdf
    • https://vimixake.weebly.com/uploads/1/3/1/1/131164471/pujujaku_rewab_felopewupi_bofumuxorerab.pdf
    • https://static.s123-cdn-static.com/uploads/4468563/normal_5fe32bc0e3b10.pdf
    • http://zuwalirakodu.22web.org/l2_revolution_cp_guide.pdf
    • https://cdn-cms.f-static.net/uploads/4486060/normal_6054c3783a2e2.pdf
    • https://rexekimat.weebly.com/uploads/1/3/4/0/134017736/3256273.pdf
    • https://cdn.sqhk.co/lufezeralon/50Khggc/recorder_of_deeds_office_cook_county.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/862078e3-e1ec-4d24-bbdd-f54eab0767a1/multiplication_table_30x30_printable.pdf
    • http://jonogib.epizy.com/starbucks_delivering_customer_service_harvard_case_study_analysis.pdf
    • http://jumebesatupa.epizy.com/uppababy_vista_double_stroller_adapter.pdf
    • https://uploads.strikinglycdn.com/files/4fb952db-482a-411e-812f-90ccf6b20d07/71728110223.pdf
    • https://uploads.strikinglycdn.com/files/40a7d4ff-dbe1-47af-b52a-0f08f0ec3074/farmall_h_parts_for_sale.pdf
    • http://xiwagopa.epizy.com/40146898709.pdf
    • https://uploads.strikinglycdn.com/files/32e38011-10df-4819-8668-c6fa94799de9/martin_luther_posted_his_95_theses_on_church_door.pdf
    • http://xojakejib.epizy.com/guggenheim_partners_investment_management_llc_annual_report.pdf
    • http://lotawovuvowuk.rf.gd/gumakeru.pdf
    • http://madujenorenugax.epizy.com/basic_calculus_limits_and_continuity.pdf
    • http://roxoretubobo.rf.gd/angioplasty_procedure.pdf
    • https://uploads.strikinglycdn.com/files/b14e7026-306d-4f7c-96c6-30b2aad511df/mujoranufupid.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.

FilenameKindSourceSize
font_00_sfnt_off0000e051.bin
495d98d2b2ccf4c342c9a7a3f209661ca3a31bdaf52583a4008a1df8a81b7686		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE051 5452 bytes
font_01_sfnt_off0000f2c2.bin
03b0cf91a8840c79a37930d7e69e4a6bfe0f50feb127e5933314cafa9158f1cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C2 10932 bytes

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