Malicious PDF — malware analysis report

Static analysis result for SHA-256 52a7154d3ba56eee…

MALICIOUS

PDF

76.3 KB Created: 2021-02-28 13:19:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c8a990a9fdcd8cfeddbde404627bcc8e SHA-1: 1102338862785d069d605b79deac51fd70861d18 SHA-256: 52a7154d3ba56eee51bb7cb115736633ddd49e0e2e7e34ff0452d552a49ff022
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://seumenha.ru/123?utm_term=kenmore+washer+110+lid+switch+part+number PDF link annotation
    • http://ganitigusawev.mygamesonline.org/ms_project_for_mac_free_trial.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/dizuzawifokevimudo.pdfIn PDF document text
    • https://cdn.sqhk.co/gojogefe/hKsjaha/game_of_thrones_stark_family_members.pdfIn PDF document text
    • https://cdn.sqhk.co/vakolitakap/hgi5if2/mortal_kombat_xl_all_skins_unlocked_download.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/the_bfg_movie_trailer_2016.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/VChjfif/puzadezigolajugixatowuxax.pdfIn PDF document text
    • https://cdn.sqhk.co/zovaratigu/Fhihi14/turbo_debit_card_stimulus_check.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuvedije/jvhjjBq/wagaxutefevubil.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/can_i_convert_to_jpg_for_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sigedasubaduvep.rf.gd/najukedigesigufuritowu.pdfIn PDF document text
    • http://vedudide.rf.gd/jio_store_whatsapp_application.pdfIn PDF document text
    • http://dogefifuga.rf.gd/tanumagovaberigitiz.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/narnia_3_sinhala_sub.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/31847262009.pdfIn PDF document text
    • http://pujumek.myartsonline.com/fexosunazerudevil.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_off0000ed4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED4B 5708 bytes
SHA-256: 6f8f6a01c9b030bf5652f1e6a13b5a2a1eb9498d9cf3dade2e9b09e0a2853054
font_01_sfnt_off0001009f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1009F 10328 bytes
SHA-256: 6a79ba22798f1d8f15271c74c3d7e66f0a06fec676f27ec95227e1752b206c7b