Malicious PDF — malware analysis report

Static analysis result for SHA-256 2399331e0cac03f9…

MALICIOUS

PDF

73.6 KB Created: 2021-02-18 00:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c7096d9cbe894f24fa29a061a6d1a874 SHA-1: 1ccadab17ce0c7fc500eabb33cab0366f4fea675 SHA-256: 2399331e0cac03f92fad57edec4b1b84c7817379e8ac0b35aa2fcc3ce54027a7
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/123?utm_term=heroes+of+olympus+book+2+read+online PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495395/normal_5fc8ec4718b56.pdfIn PDF document text
    • http://amsidisi.xyz/prophesy_of_pendor_gold_barhcube.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489992/normal_602b9404819ca.pdfIn PDF document text
    • http://art-practice.org/72338265161g6gr9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491686/normal_5fdb364872f25.pdfIn PDF document text
    • http://lestyprin.online/history_of_muslim_civilization6rdt4.pdfIn PDF document text
    • http://tixshopclub.space/the_giver_chapter_329nfa.pdfIn PDF document text
    • http://frontglass.xyz/cartoon_character_maker_apku8c3w.pdfIn PDF document text
    • http://vipmanmarket.space/83009632143vj3kp.pdfIn PDF document text
    • http://musc-media.xyz/vawitefafekosefiguvas84.pdfIn PDF document text
    • http://perevod24-card2card.site/burger_king_coupon_mai_20189iau3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://laxunuwozen.epizy.com/39590537852.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/parikhit_bala_baul_song.pdfIn PDF document text
    • http://kobatalizaz.epizy.com/babylon_js_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/zugirefuboguzosadalim.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_off0000e393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE393 5588 bytes
SHA-256: f70b837cf7a77060755d907e0bc759624c9c8008a54fdd88b37da94134a6a4a0
font_01_sfnt_off0000f678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF678 10252 bytes
SHA-256: d1227e5f1e5e9e9be4568f7895051fefbf9ffca2602a3b12c6eb69e04ac74c7c