Malicious PDF — malware analysis report

Static analysis result for SHA-256 6913a7dd7806ae99…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 15:59:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 99358de9725239a4afaa0a073c96d7d6 SHA-1: c25f3f8712df5819fa00bddd71a5c13e2cfa393b SHA-256: 6913a7dd7806ae9923da9167b2178d74a2caf09bb32469ade6017c0d3e728b80
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wix?keyword=drivers+manual+book+california PDF link annotation
    • https://cdn.sqhk.co/zosiwikiw/b1qjagi/67180170957.pdfIn PDF document text
    • http://veronaital.space/ruzugefutez5f5e.pdfIn PDF document text
    • http://topukovatawosu.sportsontheweb.net/black_and_decker_18v_drill_battery_recharge_time.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/how_much_does_hyundai_charge_for_service.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/44030184931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374852/normal_600ee8d1ec516.pdfIn PDF document text
    • https://cdn.sqhk.co/xitiwumabag/Sgejahi/waxazibuwemolozomoxujomu.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/kenmore_series_500_washer_manual.pdfIn PDF document text
    • http://gemubanabugawa.mypressonline.com/38680019145.pdfIn PDF document text
    • http://revershjtb.site/traffic_racing_in_car_drivingbu8ce.pdfIn PDF document text
    • https://cdn.sqhk.co/xurazegoba/hijb6vo/sugabobemikanosunegovaga.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/fikuvine/how_to_draw_isometric_projection_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/kawizanupujisazamuwi.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/zorba_the_greek_book_critical_analysis.pdfIn PDF document text
    • http://dowuvoduwitovos.atwebpages.com/nec_dt300_phone_conference_call.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/daniel_brailovsky_pedagogia_entre_parentesis.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_off0000d974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD974 5292 bytes
SHA-256: a5da1bdfc87bce88032ed1f52b2b5a6021763784a6835ea0d3ffade4929fef80
font_01_sfnt_off0000eb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB67 10520 bytes
SHA-256: 7ce352cf3ff5de6f73e5da80f8c24d634c3c513bd78cf89add4cf689bcdce7f5