Malicious PDF — malware analysis report

Static analysis result for SHA-256 739bc47dba55e75c…

MALICIOUS

PDF

71.6 KB Created: 2021-02-26 19:26:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8a964af31b5a08a43599de19ade4ead8 SHA-1: 4165ba56e47a7cab5bb3505131811ab21da59767 SHA-256: 739bc47dba55e75cc3aafe0a88c901c6765218d051b45d9f15e8434913f623ef
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://fokemale.ru/award?keyword=rehras+sahib+full+path+audio PDF link annotation
    • https://cdn.sqhk.co/xagaxubibiz/iqRWg8j/90256706336.pdfIn PDF document text
    • http://ufenmac.com/ray_dalio_principles_ebook_downloadw6wch.pdfIn PDF document text
    • https://cdn.sqhk.co/sabimejuka/ic6emgf/evolution_movie_netflix_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484118/normal_6015ec02589d1.pdfIn PDF document text
    • https://cdn.sqhk.co/zixemoliz/shcQThe/super_robot_car_transforme_futuristic_supercar_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zumumolebajo/Grwyhcp/cnc_router_parts_llc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448535/normal_602defa482e1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383295/normal_6036bcbd5988e.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/lwxiao6/wolfen_timed_flow_basin_tap.pdfIn PDF document text
    • http://immorta-cross1.club/235233729589r21j.pdfIn PDF document text
    • https://cdn.sqhk.co/welosezu/q9gcfjh/27085876217.pdfIn PDF document text
    • http://namelesssouth.xyz/encyclopedie_des_plantes_magiques46yqu.pdfIn PDF document text
    • http://mmuuue.space/snapseed_for_pc_windows_76f3fr.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/epBgihg/cinebench_r15_cpu_multi_64bit.pdfIn PDF document text
    • https://cdn.sqhk.co/gasalikuviz/eF6tjfG/3187732712.pdfIn PDF document text
    • http://asia.kiwi/momirikanivijebybj5d.pdfIn PDF document text
    • http://tesar-krd.ru/garmin_gns_430_user_manualbcriu.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/bajuse/32547851008.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/gapedisoxedube.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/situgugebe.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/38612753965.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_off0000d317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD317 5276 bytes
SHA-256: a45373c15d9fb5863e0b6ae2580395ed35df45e72832622b24daa4a92312cde7
font_01_sfnt_off0000e4fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FA 14472 bytes
SHA-256: e85addef00532ae88e4bc5715a58c03a949024a4e2e73da0692e17706a658a1d