Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b3567ba4c4ec5c…

MALICIOUS

PDF

69.3 KB Created: 2021-02-03 11:43:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4d42fc1daf200e317779b7b94676da8a SHA-1: a83e04e41fd7f7dc6dd07237592526f1a52eb9d4 SHA-256: 00b3567ba4c4ec5cbc8bc5b9f526d1b06c8bf5e16c0a583b3ba18ee3654e7ffa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wb?keyword=free%20phonic%20worksheets%20for%20year%201 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401712/normal_5fea403728da8.pdfIn PDF document text
    • https://cdn.sqhk.co/suwapipejob/iEiiz8J/adobe_photoshop_fix_for_pc.pdfIn PDF document text
    • http://vasazuruxu.iblogger.org/cabinet_vision_11.pdfIn PDF document text
    • http://kupivse.xyz/manual_usuario_contasol_2019eu9e5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479470/normal_600596fdb04ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393754/normal_5fec17379a008.pdfIn PDF document text
    • http://graatorama.fun/savanugaleldlg5h.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gupexofuvesok.epizy.com/84351133934.pdfIn PDF document text
    • http://levewome.epizy.com/wiwomu.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/number_format_javascript_jquery.pdfIn PDF document text
    • http://notaruk.rf.gd/broken_age_apk_uptodown.pdfIn PDF document text
    • http://jigabez.epizy.com/best_beat_machine_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/kudupaganowigivu.pdfIn PDF document text
    • http://mujijebal.epizy.com/venokuwo.pdfIn PDF document text
    • http://juvikavirilija.rf.gd/app_cloner_mod_apk_1._5._23.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/botulil.pdfIn PDF document text
    • http://pirafabitibabik.rf.gd/information_technology_meaning_in_french.pdfIn PDF document text
    • http://fabupumow.epizy.com/sirofumukere.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_off0000d27b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27B 5336 bytes
SHA-256: 7604d541ad2ad0cedd530de8d56db7cbdb5d348cb5b3e17557d12cc52e1d01f9
font_01_sfnt_off0000e4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C2 10476 bytes
SHA-256: 0ece8245d0be9ff2dfb9566108daa44ad5c7249302f410e5aa5cf9084cf21501