Malicious PDF — malware analysis report

Static analysis result for SHA-256 4860c6b1e34f8eb7…

MALICIOUS

PDF

72.4 KB Created: 2021-02-28 08:53:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 97f33d6cd6b415e19777bfe3bdd428e5 SHA-1: b54e42f70f283892f3ba0a311ddc440de7a0be9e SHA-256: 4860c6b1e34f8eb7b1505e4f42b2a3c49727adb6cf768dffbc5b3043a677fa5f
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://zajinet.ru/award?keyword=how+to+eat+mussels+fine+dining PDF link annotation
    • http://bristol-yalta.run/kazawalurelazigobosedivedo97j.pdfIn PDF document text
    • http://retys.fun/shark_robot_vacuum_issuesrgr7p.pdfIn PDF document text
    • https://cdn.sqhk.co/soboxuxafiso/jbiahcP/my_boy_emulator_pokemon_fire_red_cheats.pdfIn PDF document text
    • http://eurozone.pro/jasper_report_maven_compile5vz95.pdfIn PDF document text
    • http://ygrash.website/brooch_designs_templatespr0su.pdfIn PDF document text
    • http://devicesprotectionforusers.site/chaine_d_nergie_exercice_corrig0lj2u.pdfIn PDF document text
    • https://cdn.sqhk.co/pulazapusaw/aEWUlpG/pc_games_2019_offline_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369909/normal_6003f53a5888d.pdfIn PDF document text
    • https://cdn.sqhk.co/tajixixejafi/cxHXmIH/screen_recorder_hd_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tememagitapo/hahgihc/suwutojinamobovuposafam.pdfIn PDF document text
    • http://fruittea.space/kikagebexujezye0f.pdfIn PDF document text
    • https://cdn.sqhk.co/zexetiminav/e2LSkgj/screen_recorder_with_audio_recorder_for_pc.pdfIn PDF document text
    • http://nusoxex.iblogger.org/cant_install_office_2007_on_windows_10.pdfIn PDF document text
    • http://thefortykuti.com/9735377315007bkw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jonora/nusawugiruraf.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/cuisinart_pro_classic_7-cup_food_processor_in_white.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_off0000e032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE032 5184 bytes
SHA-256: 769f6f2130a31a4fd756fe8a0001354bd1c9f0d067c5a97ec65363aea466a841
font_01_sfnt_off0000f1db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DB 10184 bytes
SHA-256: 0a950942587218bf901bfe7c1191653c84466a4b778c3092828b458b087e372d