Malicious PDF — malware analysis report

Static analysis result for SHA-256 255578703abf9a8f…

MALICIOUS

PDF

75.1 KB Created: 2021-02-24 23:20:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 7b14ae0cb7b5db35345e569946005f0e SHA-1: 97b78b3089eebb402f3e9ce14f7fa5e06a6f5495 SHA-256: 255578703abf9a8fdef9020be3238580c7a55cd84f2f0f96dec9850be809eb72
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://baarspo.ru/award?keyword=pride+and+prejudice+movie+2005+imdb PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448330/normal_5fffceaab3cd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492250/normal_6007058721207.pdfIn PDF document text
    • http://kutatit.getenjoyment.net/how_hard_is_it_to_set_up_a_wordpress_website.pdfIn PDF document text
    • http://smartbright.club/79135227613ie40q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465127/normal_5ff0b99c9ab99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403428/normal_602cb68bada37.pdfIn PDF document text
    • http://dwatches.site/95010260084ihegm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481841/normal_6004fb29722de.pdfIn PDF document text
    • https://cdn.sqhk.co/purorenutuw/iaewji9/beat_tiles_rhythmatic_tap_mod_apk.pdfIn PDF document text
    • http://rezltml.xyz/49571317363mcukn.pdfIn PDF document text
    • http://craftsmansmetics.com/biological_classification_class_11_mcqhkk21.pdfIn PDF document text
    • http://punejew.mygamesonline.org/84184466196.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guxajez.rf.gd/demakaligovifipenur.pdfIn PDF document text
    • http://xatosizukav.epizy.com/vewudomipitobovinasabodig.pdfIn PDF document text
    • http://sixuregorajaso.rf.gd/51154497217.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_off0000e944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE944 5684 bytes
SHA-256: 3ddc66c772c8399258ab9e1e242567bcc93f95c31c84ec329caf060d59853057
font_01_sfnt_off0000fc8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8C 10284 bytes
SHA-256: 81b3b556afdedb4f6d358186d6e02075ff000ea4e04dc635defb56dbe628c55a