Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd96a5300bead948…

MALICIOUS

PDF

64.8 KB Created: 2021-03-01 14:25:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 48667435d2937886b8935644d7d64201 SHA-1: 6567e3d8d2f85537ab97c4fa33eef0d0acbaef24 SHA-256: bd96a5300bead948ca68158612312eeb0a3731bac15eac7f9cd051c9dd90c7fc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=mole+ratio+pogil+answers PDF link annotation
    • http://pe50off.info/farefugodataramonufilam6jdic.pdfIn PDF document text
    • https://cdn.sqhk.co/zotiperugi/iaginRA/basketball_mini_shoot_and_score_game.pdfIn PDF document text
    • https://dobamadolexazi.weebly.com/uploads/1/3/4/4/134478964/3958391.pdfIn PDF document text
    • https://zokesafan.weebly.com/uploads/1/3/0/7/130775675/fodapoxomemujom-topojulisuv-mopapag-peguzuv.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/hjBhfib/62375175897.pdfIn PDF document text
    • https://bunutawopuzo.weebly.com/uploads/1/3/4/8/134868528/kepefe.pdfIn PDF document text
    • https://sitimewodojex.weebly.com/uploads/1/3/1/8/131856527/genore.pdfIn PDF document text
    • http://about-igsupport.com/westworld_subtitles_urlinr3m.pdfIn PDF document text
    • http://raifaisentgo.online/933391041358fcqw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tososite.onlinewebshop.net/guronererokogexidoxazib.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/ejercicios_resueltos_de_estadistica_descriptiva_para_datos_agrupados.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/business_email_asking_for_more_information.pdfIn PDF document text
    • http://zizenatoxu.myartsonline.com/how_to_answer_tell_me_about_yourself_in_a_university_interview.pdfIn PDF document text
    • http://wowisosanazo.rf.gd/xaviwenudimedagulufinulep.pdfIn PDF document text
    • http://japinoxizidunub.myartsonline.com/how_to_say_you_have_good_time_management_skills.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/kagesu.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/magica_transformar_agua_em_vinho.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_off0000c418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC418 5084 bytes
SHA-256: c9a59681f8556ef4039565730f756e8dbc0a7b15c75cc9e5bdeea3d6aa558044
font_01_sfnt_off0000d58b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD58B 9632 bytes
SHA-256: 85f55519bb5b18310c04c319d92e66466f41f29ccbe28b372a2d598db9f4a8b7