Malicious PDF — malware analysis report

Static analysis result for SHA-256 a785bf139c25ae0e…

MALICIOUS

PDF

75.2 KB Created: 2021-01-29 07:41:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 89dd0cf98788434cb551746670d76f91 SHA-1: 95ed1f69249d6de1585a096bcfd950d0ea7308f8 SHA-256: a785bf139c25ae0eaf825bd15fcd916bdaa352ca4f0c769ef07f4cab166ae50f
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://leonvi.ru/aws?utm_term=adblock+for+sony+android+tv PDF link annotation
    • http://ketrovk.xyz/the_dead_among_usc2lhl.pdfIn PDF document text
    • https://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/gonix-gilesig-judibuzajide-nufadagarubog.pdfIn PDF document text
    • https://tazumeter.weebly.com/uploads/1/3/1/4/131438167/06c8cc9.pdfIn PDF document text
    • http://gigurokubi.66ghz.com/sazasaro.pdfIn PDF document text
    • https://garanokuwepo.weebly.com/uploads/1/3/0/8/130874617/peded_mumujeruziz_notawisizazadat_sosox.pdfIn PDF document text
    • http://batmbatm.ru/lopugulezolefupdd3w7.pdfIn PDF document text
    • https://befawiboper.weebly.com/uploads/1/3/5/3/135389238/jebis_kabaledelix_rabaxuxubewopu_dilalubobiwub.pdfIn PDF document text
    • http://goodsun.fun/46837271260102pj.pdfIn PDF document text
    • http://lienforkid.com/mtg_first_strike_deathtouch_rules45yza.pdfIn PDF document text
    • http://arenda-comp.space/2212353439324cfk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://putetudufotu.rf.gd/kujewixak.pdfIn PDF document text
    • http://jigiwema.epizy.com/best_android_phone_app_replacement.pdfIn PDF document text
    • http://vozajaw.rf.gd/xelenokomejezuxarawi.pdfIn PDF document text
    • http://jibovofafef.epizy.com/cebuana_lhuillier_micro_savings_application_form.pdfIn PDF document text
    • http://vakusidoler.epizy.com/jozakotexakese.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_off0000e585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE585 5368 bytes
SHA-256: 64efd6202c38d7cbd445df6ed4cc48e384e87c5ad114a5885717343dfb88b7fe
font_01_sfnt_off0000f7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E6 11284 bytes
SHA-256: 37d272befd6eed37314e51671d55ff37deb520683e08f93e783845594ab59aad