Malicious PDF — malware analysis report

Static analysis result for SHA-256 11537f42b022a032…

MALICIOUS

PDF

65.1 KB Created: 2021-02-25 22:10:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 14b68dbdb713bbb337fe7ee428aaa674 SHA-1: 06c67ec1a8790ae74c05862cd88e3f9394868720 SHA-256: 11537f42b022a032e93b48e50eeadba14467965e9fb75cef9a204198fa511eee
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/award?keyword=d%2526d+dragons+%2526+dungeons+master%2527s+guide+5th+edition PDF link annotation
    • https://cdn.sqhk.co/lajoroteb/nnieOjj/razas_de_perros.pdfIn PDF document text
    • http://befotuke.mywebcommunity.org/xijufupufakadiva.pdfIn PDF document text
    • https://pikupazu.weebly.com/uploads/1/3/4/5/134577858/e31f133a5b3.pdfIn PDF document text
    • http://delinapod.mypressonline.com/zafazuwu.pdfIn PDF document text
    • http://tinesoxexi.22web.org/xetekosababosagarinifax.pdfIn PDF document text
    • https://cdn.sqhk.co/fazituku/WnjihhE/fegaz.pdfIn PDF document text
    • https://lenapejasuma.weebly.com/uploads/1/3/4/7/134749539/judani.pdfIn PDF document text
    • https://cdn.sqhk.co/repudodo/hasX8id/82647307547.pdfIn PDF document text
    • https://cdn.sqhk.co/xusawikorut/giVihrM/old_time_gospel_music_page.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/como_agua_para_chocolate_pelicula_completa_en_espaol_vimeo.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/wTjcjcz/18295428336.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/how_long_does_navy_training_last_in_nigeria.pdfIn PDF document text
    • https://medivurufif.weebly.com/uploads/1/3/1/4/131407406/woludipi.pdfIn PDF document text
    • http://pusulij.22web.org/box_shadow_not_working_in_email_template.pdfIn PDF document text
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/gutavitika.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gobonelore.epizy.com/39711739203.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/endocrine_system_worksheet_answers_section_a.pdfIn PDF document text
    • http://jizabimumonox.rf.gd/vshare_helper_pc.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/how_to_adapt_formative_assessment_in_distance_learning.pdfIn PDF document text
    • http://sajulugebimisu.myartsonline.com/mega_construx_probuilder_masters_of_the_universe_castle_grayskull.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/health_economics_bhattacharya_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/15688971009.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_off0000c684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC684 4156 bytes
SHA-256: 58eabb24298f18ab3cb5c3f3a5652a185830994b36fd37cd9ad46fcf77495092
font_01_sfnt_off0000d4b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B3 10268 bytes
SHA-256: feb302f71cf5e3e67efa9a6de77ef755e9558b0232f3ec1cfbc854b754079531

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