Malicious PDF — malware analysis report

Static analysis result for SHA-256 d585365523583146…

MALICIOUS

PDF

69.0 KB Created: 2021-01-20 00:23:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 430b126114db97511d0365d4619358ba SHA-1: 477a31e5ed7b22b294a0375c5734423a8aff364c SHA-256: d585365523583146271a7adfc07b3f650db4fb8eaaf7a94e74cc2e1c00ab8a13
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://bologen.ru/123?utm_term=sorting+lesson+for+preschool PDF link annotation
    • https://site-1168112.mozfiles.com/files/1168112/46519303730.pdfIn PDF document text
    • http://paxawujaxoda.22web.org/guzopakufusexefofujedasid.pdfIn PDF document text
    • https://site-1177265.mozfiles.com/files/1177265/tovomofori.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/iaiihhZ/ninja_arashi_2_date_de_sortie.pdfIn PDF document text
    • https://cdn.sqhk.co/fojoravuvu/ahjgdYy/menona.pdfIn PDF document text
    • https://site-1172123.mozfiles.com/files/1172123/63869410765.pdfIn PDF document text
    • https://site-1167933.mozfiles.com/files/1167933/cechy_podzielnoci_liczb_zadania_klasa_5.pdfIn PDF document text
    • http://xojuxegalixiluj.66ghz.com/whatsapp_video_odia_new.pdfIn PDF document text
    • https://cdn.sqhk.co/totudavomud/lichcwQ/jujeg.pdfIn PDF document text
    • https://cdn.sqhk.co/vukobefebu/aghhe6E/21720367919.pdfIn PDF document text
    • https://site-1166676.mozfiles.com/files/1166676/34809036278.pdfIn PDF document text
    • https://cdn.sqhk.co/zunesunatiri/ygfifib/blackboard_ttu_email.pdfIn PDF document text
    • https://cdn.sqhk.co/bipukawu/iiZvvqf/63810300443.pdfIn PDF document text
    • https://cdn.sqhk.co/motuwezelu/eQvjhid/58050749996.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vemesivudaro.epizy.com/vuperozigovup.pdfIn PDF document text
    • http://kunaraxanoxun.epizy.com/rule_1000_bilge_pump_manual.pdfIn PDF document text
    • http://josisuvo.epizy.com/automatic_vs_manual_transmission_gas_mileage.pdfIn PDF document text
    • http://babematalal.epizy.com/describing_physical_appearance_worksheets.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_off0000d186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD186 5172 bytes
SHA-256: 67dd0e318b4826e1aff849bee2cae347e7e09e5ebc2eb9de3dce25bc31599eb8
font_01_sfnt_off0000e325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE325 10468 bytes
SHA-256: 16e30b90b33a53029bd29e44188e191acc60828f067577d6d20e4958d9e31de2