Malicious PDF — malware analysis report

Static analysis result for SHA-256 192cfa7ff535feb4…

MALICIOUS

PDF

65.0 KB Created: 2021-02-25 05:08:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 92972c408d3dd9c56087ef42836119d5 SHA-1: 0a6c7048ff2d1e75554d0c539984b6cb652b271c SHA-256: 192cfa7ff535feb461813aa7e3f2c503c75db6af36bf1999045a925cbaa5d195
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://seumenha.ru/award?keyword=garmin+vivosmart+4+owner%2527s+manual PDF link annotation
    • http://xufededubumavif.scienceontheweb.net/garmin_gtn_750_installation_manual.pdfIn PDF document text
    • http://girlsbeach.space/kavabowoludigufajosohkz6m.pdfIn PDF document text
    • http://forexgeeks.net/denufafavobb3wk8.pdfIn PDF document text
    • https://cdn.sqhk.co/refevebux/igijmgj/15133018322.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/eNehggh/xebuxugelinu.pdfIn PDF document text
    • http://starconflict-game.ru/133158526319zu2s.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/i5ieOdt/smash_bros_switch_controls.pdfIn PDF document text
    • http://agreevudb.rest/my_piano_adventures_audiomq7iv.pdfIn PDF document text
    • https://cdn.sqhk.co/kurafuso/in2EDjg/world_war_iii_black_gold_serial_number.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/Sjj3haG/red_ball_go_between_buildings.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/bokexizometun/exercise_34_frog_cardiovascular_physiology_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/vowels_activity_worksheets.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/1_milimetro_cuantos_centimetros_son.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/dositefexarubo.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/worksheet_on_interjections_for_grade_4.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_off0000c41f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC41F 5136 bytes
SHA-256: 66ed30b0dffbab2abd4f3cd513244bb3271b60e15681cfdef4eda3c73f8dec54
font_01_sfnt_off0000d5a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A3 10132 bytes
SHA-256: 9c48fc85131d5c76eb30494c610a4b290a0ec2e5bad155fd4ab7d30e45d14549