Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d32113a9245ae22…

MALICIOUS

PDF

65.5 KB Created: 2021-02-17 08:46:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8333b3618d3a46a82accead07cdcc91c SHA-1: e6483e0980d0343d3ef5be453b98ef25e5c9169f SHA-256: 4d32113a9245ae22e593fb0c04258a5fce65e35480bcdaa6bf2bf300b809cd3e
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://baarspo.ru/wb?keyword=waters%20of%20babylon%20lyrics PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4378607/normal_5fc623a2d0499.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427509/normal_5fdfc635d1354.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385028/normal_5fe3264cb3000.pdfIn PDF document text
    • http://dowowuvaz.iblogger.org/3359188763.pdfIn PDF document text
    • http://vunekopewode.22web.org/kowubexizibidibixasebe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377931/normal_6013735e5562f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kukadafimi.rf.gd/best_naruto_shippuden_game_for_android.pdfIn PDF document text
    • http://pavitekoruw.rf.gd/kingdom_animalia_classification.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/melekexurinivatepazupesu.pdfIn PDF document text
    • http://segoxegigo.epizy.com/gunazimadorovuduliko.pdfIn PDF document text
    • http://tivapatovike.epizy.com/xuzijumifoziguwe.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/gradebook_free_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/rajutusizugijiri.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/13548554524.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/biographical_information_about_mary_shelley.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_off0000c651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC651 5132 bytes
SHA-256: cd121c08a05613120620de0e50db2b0928201895ffd6dfa7177c8fc8417eacaa
font_01_sfnt_off0000d7ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EA 9776 bytes
SHA-256: 4380a8f6bbbcce84660aa33d38602f7043230d9951d3e86c6a954de908c27154