Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddaf97d6469d06d…

MALICIOUS

PDF

68.6 KB Created: 2021-01-21 16:17:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ff1b662da7399fda17b9f91316d95383 SHA-1: aa392921606e09548c6dc219526d08d44a3de098 SHA-256: 8ddaf97d6469d06d69727c8be6536a857a33bdc08a88c17ca058438b5659eff1
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://jacksth.ru/aws?utm_term=libro+para+colorear+mandalas+apk PDF link annotation
    • https://getawupib.weebly.com/uploads/1/3/1/8/131856556/vigajuwiso.pdfIn PDF document text
    • https://rujizubag.weebly.com/uploads/1/3/0/7/130776042/300874d11f9d.pdfIn PDF document text
    • https://gikexirubunos.weebly.com/uploads/1/3/4/6/134644737/jabunejodeji.pdfIn PDF document text
    • https://site-1172896.mozfiles.com/files/1172896/31525131343.pdfIn PDF document text
    • https://cdn.sqhk.co/zapajugadira/liahihc/the_great_war_western_front_and_home_front.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/pIjjIhh/zixadiwe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386605/normal_5fbd7d930a449.pdfIn PDF document text
    • https://cdn.sqhk.co/genizataxom/icwjfij/esrs_policy_manager_linux.pdfIn PDF document text
    • https://site-1250331.mozfiles.com/files/1250331/80187964134.pdfIn PDF document text
    • https://maselevajaf.weebly.com/uploads/1/3/1/3/131398143/jopidawironoseb.pdfIn PDF document text
    • https://site-1175549.mozfiles.com/files/1175549/eu4_center_of_reformation_disappear.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/power_outage_report_pretoria.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/bittorrent_apk_for_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/muwagetijixezejuxapipa.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/auricularia_cornea.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_off0000cf20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF20 5364 bytes
SHA-256: 26be6e61279f3165116da65b5c8183135f5352dbf4d94323a9b5e7263b905705
font_01_sfnt_off0000e140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE140 10664 bytes
SHA-256: f243d4c2980c14d3fb5afe6fa55913476b71ed7b1e75b6d5b117c96f904247a1