Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a36dba90109b817…

MALICIOUS

PDF

72.7 KB Created: 2021-02-24 19:09:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 98f9ec892154d8117f73df8873503842 SHA-1: 030291853ce2b2bec517d14f1ffe36dcfa7de09e SHA-256: 5a36dba90109b8178aadc7347106c09f88e3e47eb50e19c6fe623e5e97d429fa
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://bologen.ru/wb?keyword=cyberpunk%202077%20update%20schedule PDF link annotation
    • https://cdn.sqhk.co/fevivesuxofo/ghgigig/song_for_kobe_and_gigi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409114/normal_5fc595b95e444.pdfIn PDF document text
    • http://lasomupigo.iblogger.org/why_isnt_my_dyson_turning_on.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450730/normal_5fcfaefead8f2.pdfIn PDF document text
    • https://cdn.sqhk.co/labifikup/EjfhdCS/710_espn_seattle_live.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/jjjikij/45691627548.pdfIn PDF document text
    • http://penaxuwilamufo.iblogger.org/64249787045.pdfIn PDF document text
    • https://cdn.sqhk.co/mujexoxa/jcgh0ii/bubble_spinner_facebook_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394073/normal_5fde888142781.pdfIn PDF document text
    • https://cdn.sqhk.co/sakupiraf/idH5ib3/modern_warfare_servers_down_beta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fatekikatamepis.rf.gd/baby_trend_sit_n_stand_tandem_stroller__car_seats.pdfIn PDF document text
    • http://ditajizuru.rf.gd/patonagit.pdfIn PDF document text
    • http://fobapisarut.epizy.com/catholic_altar_server_training_video.pdfIn PDF document text
    • http://saxowuwu.rf.gd/wow_legion_legendary_items_guide.pdfIn PDF document text
    • http://delezomixotu.epizy.com/dawn_of_titans_latest_apk.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_off0000df2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2E 5724 bytes
SHA-256: 9ae2e8a78e5a4380a97f13aa776525957ae3f0c6cb11ae5c1e8adf6574697c9c
font_01_sfnt_off0000f2aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AA 10288 bytes
SHA-256: fe0e4400727eb96b89e901d6a551f63da750c8139b00c4ef4b5e7c7ab58167b5