Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd4eaa10336a9ad7…

MALICIOUS

PDF

74.6 KB Created: 2021-03-02 10:41:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b2406331e358defa4ad11c19e60d235b SHA-1: 537e2ab2e74651b936f2852ed61bfb3baba6a7b1 SHA-256: cd4eaa10336a9ad7db5cc72aaa996610581e9bb5068997acb3850c6b2cdb6203
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/strik?utm_term=manual+radio+relogio+sony+dream+machine+icf-c414+em+portugues PDF link annotation
    • http://gimudal.iblogger.org/pulake.pdfIn PDF document text
    • http://vimobewawulipiz.mypressonline.com/tcp_ip_stack_repair.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/tarizazovipatasixefubegi.pdfIn PDF document text
    • https://cdn.sqhk.co/juvokapo/aihgiDM/iost_staking_wallet.pdfIn PDF document text
    • http://napufokotipo.getenjoyment.net/diccionario_de_filosofia_online_ferrater_mora.pdfIn PDF document text
    • http://chambreapp.xyz/neato_botvac_d3_battery3qv2l.pdfIn PDF document text
    • https://cdn.sqhk.co/fivodewile/fbgdwjg/linaxodepumer.pdfIn PDF document text
    • http://zonokiwuwagupu.getenjoyment.net/xovamunelubojosobijod.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/wood_top_coffee_table_with_metal_legs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fekajot.rf.gd/xawetuvivagilofumiro.pdfIn PDF document text
    • http://widusop.atwebpages.com/enron_the_smartest_guys_in_the_room_full_movie_youtube.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/52174720883.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/4287854192.pdfIn PDF document text
    • http://dukizovisepo.rf.gd/atom_editor_for_windows_8.pdfIn PDF document text
    • http://vizulubafaxal.epizy.com/aplicaciones_para_android_en_cuba.pdfIn PDF document text
    • http://fotisojaz.rf.gd/ar_15_front_sling_swivel_stud.pdfIn PDF document text
    • http://zulonojaminipe.rf.gd/bidirectional_glenn_shunt.pdfIn PDF document text
    • http://pilezipiluzoso.rf.gd/ruger_lc9s_with_lasermax_holster.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_off0000e50f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50F 5848 bytes
SHA-256: f846283991feca837742825ef89580183ccd8654cdf99b6a587f139b4ff95887
font_01_sfnt_off0000f8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FB 10456 bytes
SHA-256: 1c81363cc85c327dda104d6dc55d51e6793685a7212cd431b63c022dbbfe3fc5