Malicious PDF — malware analysis report

Static analysis result for SHA-256 76a55d5dcbae2879…

MALICIOUS

PDF

65.1 KB Created: 2021-01-31 01:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9b7177633c747f3ece808efe982e7272 SHA-1: d14203f582902ab4becb18db18c349779b9d7079 SHA-256: 76a55d5dcbae28793c53e66625c1642ff1b683fdf150484ce2e4c4b1db161d6c
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://bologen.ru/123?utm_term=food+processor+manual+black+and+decker PDF link annotation
    • http://tizezs.xyz/banking_system_in_vietnamksiaf.pdfIn PDF document text
    • https://dapapakutuluj.weebly.com/uploads/1/3/1/3/131384169/7252103.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/WXMSm8q/crazy_taxi_driver_south_africa.pdfIn PDF document text
    • https://faxojoduso.weebly.com/uploads/1/3/5/3/135351685/moxeluvokega.pdfIn PDF document text
    • http://agentsoft.space/drifting_cars_gamesey0pv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384150/normal_60028adc53130.pdfIn PDF document text
    • https://sodukosikel.weebly.com/uploads/1/3/4/5/134598711/vujewerone.pdfIn PDF document text
    • http://shopeuro.pro/guitar_chord_cheat_sheetb6t84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413966/normal_5fede175a523f.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/gt32jbp/61862702325.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/pajeriramal/apepdcl_hall_ticket_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/dark_wallpaper_for_android_free.pdfIn PDF document text
    • http://jamudux.epizy.com/zupovonam.pdfIn PDF document text
    • http://xikisefux.epizy.com/466566414.pdfIn PDF document text
    • http://foripoj.epizy.com/anime_cloud_pro_apk.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_off0000c0f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F7 5380 bytes
SHA-256: 509b341f2769a0a1d8de22faf7c99998c76394f310cf64be214e4979aa2b8b57
font_01_sfnt_off0000d321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD321 10920 bytes
SHA-256: 2535a40957d3a434d3d09233563cef5775f3862463e2ab12174150ba180de532