Malicious PDF — malware analysis report

Static analysis result for SHA-256 573ce1ff8c1f872b…

MALICIOUS

PDF

63.6 KB Created: 2021-03-02 20:09:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dfc5921f9b16f0c930ae7c6b5e90ba00 SHA-1: ac7cd4fd2fad01242e7843d7b2e8ab0964a4c3da SHA-256: 573ce1ff8c1f872b1406d9c456bdf0574623ea7f9925b8014361fe6ff6ca3c5c
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://xajibur.ru/award?keyword=lavazza+espresso+point+matinee+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465270/normal_5fe4386e53feb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381738/normal_603afa5d2416f.pdfIn PDF document text
    • http://naxiramomamaz.66ghz.com/what_is_the_raven_about_summary.pdfIn PDF document text
    • http://tejasatobes.medianewsonline.com/how_do_i_file_a_complaint_against_a_judge_in_florida.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rovututuxopi.epizy.com/72003751930.pdfIn PDF document text
    • http://kalotiwinilobiw.epizy.com/vedefefira.pdfIn PDF document text
    • http://jojanotesejivi.epizy.com/wesnoth_heir_to_the_throne_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/kanutasupoku.pdfIn PDF document text
    • http://luvoxijamubisur.rf.gd/examples_of_budding_and_spore_formation.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/bsc_1st_year_online_form_fees.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/70935107281.pdfIn PDF document text
    • http://wixojoxa.epizy.com/xozaxudasojowuburofirag.pdfIn PDF document text
    • http://tazafira.epizy.com/49661113308.pdfIn PDF document text
    • http://sexujojo.epizy.com/tavewepipeka.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_off0000bf69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF69 5016 bytes
SHA-256: 4f29b738f426b6ec76eb64615c3861aa2bab2899682183cb7e6ef0e9755ea5ca
font_01_sfnt_off0000d075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD075 9712 bytes
SHA-256: c0ebf3fe30005e6cd19b6bc9187c1fb759bfaa4fbcfc9c66444719408db7dcdd