Malicious PDF — malware analysis report

Static analysis result for SHA-256 460d50ddfea5aa90…

MALICIOUS

PDF

91.0 KB Created: 2021-02-21 17:47:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e67d9ee3474c9aecac2513c06a9d214a SHA-1: 72d39035afe160cba98cdaebb774f1be1eaa2739 SHA-256: 460d50ddfea5aa90bd267029216d85de0a30621743ee9cd9546a3961766f3e8d
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/strik?utm_term=sistema+endocrino+y+sus+partes+dibujo PDF link annotation
    • https://cdn.sqhk.co/libudezetuv/jihh2fs/ffxiv_mineral_water_gathering.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449000/normal_6030108c86466.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448115/normal_5fe872aabcd63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427300/normal_5ff709e59c32c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489713/normal_5fefbf0cf1c5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480161/normal_60190be4da3b9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rixijine.rf.gd/gonikewunumewivefituk.pdfIn PDF document text
    • http://gukominutokowu.epizy.com/what_is_the_contrast_in_art.pdfIn PDF document text
    • http://jipudovisubu.rf.gd/vesatuxesosadafupojipiri.pdfIn PDF document text
    • http://giwofigu.epizy.com/debatonijorukujibab.pdfIn PDF document text
    • http://lomuripejo.epizy.com/55041382244.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/putesefigisadavemufijem.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/bal_ganesha_hd_image.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/global_perspectives_igcse_individual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/java_netbeans_latest_version.pdfIn PDF document text
    • http://tubagawidi.epizy.com/actonel_combi_d_information.pdfIn PDF document text
    • http://kajifota.epizy.com/kazatav.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/bose_quietcomfort_25_apple_ou_android.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_off000123aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123AA 5608 bytes
SHA-256: b3a133f771c4ba2910faea7210b821df8f3e6b55c5b4b8fa6fae374b6ff4e046
font_01_sfnt_off000136a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136A7 11956 bytes
SHA-256: 0b1d8f2c8d22f426f750e5e541a389a37e60f971460a7df73083aa47ed63b93f