Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f2ecbff6186479f…

MALICIOUS

PDF

69.9 KB Created: 2021-03-02 13:07:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: aaf130bc774eeef5733d504d6f9480d6 SHA-1: 00bf82346ecc0ffa39b4287ef00a0b7cccfb71e1 SHA-256: 4f2ecbff6186479fe80ebf8e52d828fdb1ec2f929c2ba3b2272cd38bba911235
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • 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://vilenefex.ru/wix?keyword=super+lotto+june+27+2020 PDF link annotation
    • http://shoop-fo.ru/star_wars_incredible_cross_sections_attack_of_the_clonesecasp.pdfIn PDF document text
    • https://wepusiviji.weebly.com/uploads/1/3/4/6/134661614/95927.pdfIn PDF document text
    • https://cdn.sqhk.co/loxowopiv/hfia2WN/woodworking_projects_that_sell_youtube.pdfIn PDF document text
    • http://bitsracing.net/koxagiwocwov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417653/normal_602f834f1b2bf.pdfIn PDF document text
    • http://gtmedis.com/lane_s_theme_piano_sheet_music_freepl4ip.pdfIn PDF document text
    • https://cdn.sqhk.co/wolebiduju/irihJib/fire_and_water_adventure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447447/normal_5fe1289568a68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411696/normal_6034477b4247c.pdfIn PDF document text
    • http://pirewarekow.mywebcommunity.org/sandisk_clip_jam_file_system_error.pdfIn PDF document text
    • http://floradoma.net/descargar_biblia_reina_valera_1960_gratisxmxwz.pdfIn PDF document text
    • https://cdn.sqhk.co/tarolaser/eHl6mnJ/favijakutonabunojonu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://geketugasu.epizy.com/rofutabubanavugex.pdfIn PDF document text
    • http://ratoruwowes.rf.gd/pak_navy_jobs_2021.pdfIn 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.

FilenameKindSourceSize
font_00_sfnt_off0000d638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD638 4956 bytes
SHA-256: 328554f2f17325e9237c5633700bd31387d76869b5047ad38f3d304f92a6bfee
font_01_sfnt_off0000e733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE733 10560 bytes
SHA-256: 2444548b2c5de555e0137bc721c8a540687e28b301c78e930b57aeab4b34ef84