Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dcdd90a8bf5b574…

MALICIOUS

PDF

70.5 KB Created: 2021-02-27 22:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0b953a8ad79a749c1d6ec3870ed5f19a SHA-1: 0eb789c62ce9ca8bd91f6914190936de14579441 SHA-256: 9dcdd90a8bf5b57453e0ac8283395308328f346d752160b0632125f15e166d49
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://jottigo.ru/award?keyword=the+other+side+of+midnight+book+pdf+free+download PDF link annotation
    • http://raguvigawak.mypressonline.com/watch_jack_reacher_2016_movie_online.pdfIn PDF document text
    • http://nigoguno.scienceontheweb.net/82586152915.pdfIn PDF document text
    • http://lilubaxubaxulu.sportsontheweb.net/nirovawumuginujarifebido.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/figofofeseruw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426263/normal_6032c407cdb8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457279/normal_6038145c7e341.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/golds_gym_stride_trainer_350i_elliptical_instruction_manual.pdfIn PDF document text
    • http://remontnatali.ru/dunevanodujulidakzvczk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453326/normal_60184bb6768c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367303/normal_6027908be86cb.pdfIn PDF document text
    • http://creditscorehelp.info/xugedobukyegej.pdfIn PDF document text
    • http://italystore.pro/my_passport_ultra_vs_my_passportxufpl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_601e4ade62a95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393639/normal_5fe6e36b99d52.pdfIn PDF document text
    • http://kvyovk.xyz/volvere_a_buscarte_pilar_cernudauosrl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lumosaneja.onlinewebshop.net/90313599512.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/chadariya_jeeni_re_jeeni_song_pagalworld.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_off0000d5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D8 5700 bytes
SHA-256: 0e7392f7537f35f7685b8b26af45fc5f751ce2ce90c11fa2d1e8822322fc73dd
font_01_sfnt_off0000e91b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91B 10572 bytes
SHA-256: 092f5225bae7065c7ce1c84fe553e78a862eb32ce794544199d952291504887d