Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ece3c0bde6120d0…

MALICIOUS

PDF

72.2 KB Created: 2021-03-11 10:58:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 660a5d9e1ce4c2d3ad1d692307e341c0 SHA-1: 6ab68d21d9b4309fc859624819c7fd4385b530d8 SHA-256: 9ece3c0bde6120d0c53400aeaab85e92a1d3154c05824dac3d45d67028133f87
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/award?keyword=auditoria+independente+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465691/normal_5fd7e3f0a0252.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426696/normal_5fee8cf85213f.pdfIn PDF document text
    • http://fodefon.getenjoyment.net/57956308927.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459640/normal_5feb9aef0a7f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454670/normal_600ecb5022f70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450244/normal_600f1150abe8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387939/normal_6041d62011ceb.pdfIn PDF document text
    • http://suporefebakibur.mygamesonline.org/mizoniluveturageter.pdfIn PDF document text
    • http://pelabinowoguk.getenjoyment.net/fumimojiroxujek.pdfIn PDF document text
    • http://bapulesaj.mygamesonline.org/descargar_revista_casa_viva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447912/normal_60409e7a3e8eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461767/normal_5fcbba5bbd54b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369915/normal_5fd95a0fbd5d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489028/normal_5fccf395e83ba.pdfIn PDF document text
    • http://lixorajepidil.mygamesonline.org/68605806410.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/merkury_swift_air_true_wireless_earbuds_pairing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligoroxenafof.atwebpages.com/characteristics_of_written_language.pdfIn PDF document text
    • http://kavezusi.onlinewebshop.net/79480975245.pdfIn PDF document text
    • http://bevakiwutoven.rf.gd/banewimitakowekizubibi.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/jexoresolomawetadado.pdfIn PDF document text
    • http://busimutu.epizy.com/dobabeliwexopu.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_off0000e06a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06A 4812 bytes
SHA-256: 6ae31167ed1af69cdd5c0a40e9b121d7e6a1dc222956de50ff09d147fa749684
font_01_sfnt_off0000f0d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D6 10176 bytes
SHA-256: 5ddd3b8355cce4c37ed7dab64d99c58b6e72f0cb6231e93f4944f7c72119f329

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