Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a2e436eb9cc798…

MALICIOUS

PDF

75.3 KB Created: 2021-03-04 01:13:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 22da34315f94b77886a97f9d8c236701 SHA-1: 007241f7815f25984173acbcdc695bab0ef055ef SHA-256: 40a2e436eb9cc798fddcf7062eefd59a6ecfc2ef1c6aa85df3e84b0376b97acd
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://resalured.ru/aws?utm_term=hyster+60+forklift+parts PDF link annotation
    • http://jopagozopive.medianewsonline.com/sifolije.pdfIn PDF document text
    • http://zogometemo.sportsontheweb.net/how_to_build_a_bridge_out_of_spaghetti.pdfIn PDF document text
    • http://ridisasumuxa.22web.org/90932745836.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489050/normal_6019ab25e409b.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvinudubuno/jhUDgjN/20643958768.pdfIn PDF document text
    • https://cdn.sqhk.co/lunabati/igsN7ia/27847982031.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386349/normal_5fe01128cd32d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369651/normal_5feaefd6d5df0.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/dhav3ig/49037783845.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mipitevana.epizy.com/burididedovemixafox.pdfIn PDF document text
    • http://zubugawopi.rf.gd/best_rpg_games_for_android_apk.pdfIn PDF document text
    • http://fubavinexazixo.onlinewebshop.net/buripadolezazava.pdfIn PDF document text
    • http://bobakazof.epizy.com/67032551550.pdfIn PDF document text
    • http://gufusogatodogej.rf.gd/android_mobile_update_app.pdfIn PDF document text
    • http://sulosuduvemog.epizy.com/ganalite.pdfIn PDF document text
    • http://sowiveporumege.epizy.com/how_to_fit_rug_doctor_hand_tool.pdfIn PDF document text
    • http://xolavozezimodan.onlinewebshop.net/30953413090.pdfIn PDF document text
    • http://rixexoto.rf.gd/custom_rom_redmi_note_4_snapdragon.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_off0000e90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90A 5320 bytes
SHA-256: c6dc46dbbc9ed73a4aea89f93a7ed3d6f9d584b9c5ac84cd9a7a4a9971a83aa1
font_01_sfnt_off0000fb36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB36 11092 bytes
SHA-256: 996b054c9099cd7a9cb08f56e20cd4c7ca49c0656a05e4cbdbcb7610c1f7ca79