Malicious PDF — malware analysis report

Static analysis result for SHA-256 fed235f97d77cc18…

MALICIOUS

PDF

76.4 KB Created: 2021-02-28 20:13:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1a97a00f9be43677332bae86afc05451 SHA-1: adcca52e623e1d0b3f5b5c4533ca99ecc5946b44 SHA-256: fed235f97d77cc185334d3b362bbc9ff27504d7ce7c4c5028dc8726e8c4a05ed
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gimoguvi.ru/wix?keyword=synopsys+science+fair+projects PDF link annotation
    • http://rivozuzeno.mywebcommunity.org/58475200842.pdfIn PDF document text
    • http://zimilibox.iblogger.org/paea_family_medicine_eor_blueprint.pdfIn PDF document text
    • https://cdn.sqhk.co/fixakozumad/pLjcUp7/silent_voice_wikia.pdfIn PDF document text
    • http://zabemaladameg.medianewsonline.com/how_to_use_graco_snugride_35_without_base.pdfIn PDF document text
    • https://cdn.sqhk.co/tozimozeka/jf0Dkij/the_last_level_boss_rush_dokkan.pdfIn PDF document text
    • https://tirasuvemesamu.weebly.com/uploads/1/3/4/6/134672388/54a3b.pdfIn PDF document text
    • https://xozipirun.weebly.com/uploads/1/3/5/3/135324749/saxajegeduxija.pdfIn PDF document text
    • http://jonebukusopovet.mygamesonline.org/43529074202.pdfIn PDF document text
    • https://cdn.sqhk.co/pozedezupase/cjcsxx7/out_there_chronicles_ep_1_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/dutebosatu/fgjjage/nintendo_switch_pro_controller_black_friday_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/fiYMEic/sudoku_hard_printable_8_per_page.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/09bqOUf/27094881562.pdfIn PDF document text
    • https://cdn.sqhk.co/bofagenined/ODib0td/dwight_howard_lakers_net_worth.pdfIn PDF document text
    • https://cdn.sqhk.co/medukukekuke/9RoqWo4/editable_to_do_list_template_word.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilobup/u3Xgfji/car_driving_simulator_2020_ultimate_drift.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://doruxexim.epizy.com/wedding_ceremony_order_template.pdfIn PDF document text
    • http://nedomawof.rf.gd/minecraft_gameband_software.pdfIn PDF document text
    • http://rawuwad.epizy.com/lost_without_you_piano_sheet_music_easy.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_off0000f035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF035 5260 bytes
SHA-256: a1224a17935579a2d68a1661b2456ce204bcc910591e02fdeb555f9aca39ce62
font_01_sfnt_off00010238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10238 10028 bytes
SHA-256: 05983670351255e03a67a5e15007260948169b699ce2491446a18d24235a3897

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