Malicious PDF — malware analysis report

Static analysis result for SHA-256 332b87974cb8cfb9…

MALICIOUS

PDF

72.5 KB Created: 2021-03-02 13:55:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f18670aae2e002074e8ff8cc6911b8f9 SHA-1: 5aa28627f5bdc2f58df28a25adcb0950e10964a1 SHA-256: 332b87974cb8cfb9eeb2f2cba21a68a12d5d2ced2e30431f072c6ead9da18ee5
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://vilenefex.ru/award?keyword=best+lens+for+olympus+om+10 PDF link annotation
    • https://cdn.sqhk.co/jaguwubax/iAHiigd/63517608662.pdfIn PDF document text
    • http://gefivinolegaz.22web.org/begona.pdfIn PDF document text
    • https://cdn.sqhk.co/wexovezojab/gtRhdlh/all_shopping_networks.pdfIn PDF document text
    • http://kakorixow.mygamesonline.org/what_is_the_range_of_directv_wireless_genie.pdfIn PDF document text
    • http://lemixebu.22web.org/larutogimutodara.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/cyber_security_courses_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382976/normal_601b2c50c406a.pdfIn PDF document text
    • https://cdn.sqhk.co/fularulojoze/hajigjY/widesofabalupopexulifaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lexituvom.epizy.com/how_long_does_it_take_to_treat_a_wart_with_salicylic_acid.pdfIn PDF document text
    • http://xakosafejel.epizy.com/fall_bunco_score_sheets.pdfIn PDF document text
    • http://limazajot.rf.gd/signs_someone_is_not_interested_in_you.pdfIn PDF document text
    • http://lesexugisitu.rf.gd/tedafojifatudefutijima.pdfIn PDF document text
    • http://tikokowekujuw.epizy.com/58760339793.pdfIn PDF document text
    • http://lozufusudurosok.epizy.com/karuppusamy_kuthagaitharar_tamil_movie_video_songs.pdfIn PDF document text
    • http://pikawin.rf.gd/beletidudiror.pdfIn PDF document text
    • http://wowinagapujepok.epizy.com/betesud.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_off0000e011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE011 5180 bytes
SHA-256: c55b4e3efe4ef8a500c00a2f38f70898e5ae3eed7ed0968bd5dc376ad359748d
font_01_sfnt_off0000f1b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B4 10280 bytes
SHA-256: 98e97e43884f091994ac2e982581a513e3a6090dc2e24ce19603a75dfe1a6c0e