Malicious PDF — malware analysis report

Static analysis result for SHA-256 fed83751ba24565a…

MALICIOUS

PDF

69.4 KB Created: 2021-03-02 09:58:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4ca07cd1233c5fdf21cf39d5fd372041 SHA-1: 9d99ea9d6e4526734de68bd6ea9740aa2e08e780 SHA-256: fed83751ba24565a6f117d2af81c2c4f9542740491aed465f329405d0bda321b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=whose+child+is+this+song+lyrics PDF link annotation
    • http://trelon.fun/forklift_daily_checklistm5zm5.pdfIn PDF document text
    • http://reduslimitalia.website/purezodajigowx2.pdfIn PDF document text
    • https://cdn.sqhk.co/xasexuwosul/dCjfvia/3992733408.pdfIn PDF document text
    • http://mangalvpodarok.ru/descargar_programa_adobe_acrobat_reader_dc_gratisldvxi.pdfIn PDF document text
    • http://blacklaser.ru/27295099123n7y6a.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/the_final_quest_rick_joyner_audiobook.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/universal_remote_code_for_toshiba_tv_dvd_vcr_combo.pdfIn PDF document text
    • http://ifeelgood.club/powerpoint_temalar_indir_gezginlerggrfx.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/sketchup_2014_tutorial_free_download.pdfIn PDF document text
    • http://pr-bux.online/rang_barse_remix_song_pagalworldxsou0.pdfIn PDF document text
    • https://jumirusuvowelu.weebly.com/uploads/1/3/4/6/134632856/47a5e4c8e8a28.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://semowomeso.onlinewebshop.net/49929164294.pdfIn PDF document text
    • http://magegefopo.atwebpages.com/97741260895.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_off0000d3c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C9 5108 bytes
SHA-256: 2ec42a31926ebbb8a97a342dd59b76d9da4bd8c3f9d365cd00a9e3f5cc59503c
font_01_sfnt_off0000e535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE535 10572 bytes
SHA-256: 088861fe312345918220d057d64fe4278ca18a4e7af9635a1579b81693f091c3