Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f6e65cf38b72b45…

MALICIOUS

PDF

64.1 KB Created: 2021-02-14 09:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6ed7b3979c26a52da3869d5a97562b8f SHA-1: 5ef6b7217d3c9f539a71d7c3344b527de781e5aa SHA-256: 3f6e65cf38b72b45f74f6fecce5ce00f85195047c4e6fc55747be09d7d2367c7
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://baarspo.ru/wix?keyword=bearing+worksheet+customs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417998/normal_5ff3cc217e53c.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/8igC8eD/pandemic_definition_biology.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406228/normal_5fe1ac2698708.pdfIn PDF document text
    • http://dirtygirl.fun/romantic_whatsapp_status_video_free_download_punjabivhawv.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/ifxz5cJ/xamunapazi.pdfIn PDF document text
    • http://sale20.site/6884169310z5n0.pdfIn PDF document text
    • http://detonic-buy.website/wolfenstein_the_new_colossus_uncut_piha4p.pdfIn PDF document text
    • http://italy-small.space/baal_veer_episode_867t66h1.pdfIn PDF document text
    • http://frontglass.xyz/whatsapp_video_calling_for_pcwwp0u.pdfIn PDF document text
    • http://digitalliteracyinstitute.com/lovizikanavisai8il1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472760/normal_6026ec4accc2d.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/idYjg7G/nasacort_coupon_code.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/fjcwmie/mad_city_crime_reloaded_clash_crime_town.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480753/normal_600ea144aba26.pdfIn PDF document text
    • http://100naturals.fun/magisterium_4_espaol_descargarpyp2y.pdfIn PDF document text
    • http://golden-bridge.pro/talulajusagafuxoly5udl.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/nagev/katy_perry_roar_instrumental.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/93485421872.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/discussion_lab_report_biology_experiment_2.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_off0000c069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC069 5384 bytes
SHA-256: 1cdc61403e56ed25340c3dd447665fda84834152d9b9c1f2d7a7f118de8a66af
font_01_sfnt_off0000d2aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2AA 9644 bytes
SHA-256: 5fe0fa33c9e317a72b03c734331fb8eb8c07758de239e50c61b3e45f55b4cace