Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7028676e4b39f39…

MALICIOUS

PDF

70.7 KB Created: 2021-01-28 23:18:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 27c21efecda6c5d060f717889a81f619 SHA-1: 9643c573d53d38dbd8348099a50f72692a6a9a52 SHA-256: b7028676e4b39f39bb0b2bf2a315a30ad0288b4dfbc43391b54d831f8ef735c5
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://leonvi.ru/wb?keyword=birds%20of%20prey%20pop%20vinyl%20release%20date PDF link annotation
    • http://keribek.22web.org/brattleboro_reformer_facebook.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369183/normal_5fc673f8297db.pdfIn PDF document text
    • https://minaraxu.weebly.com/uploads/1/3/4/7/134765114/1396808.pdfIn PDF document text
    • https://pufabakorulur.weebly.com/uploads/1/3/4/3/134320636/4967150.pdfIn PDF document text
    • https://tagakokiginozol.weebly.com/uploads/1/3/0/7/130775172/4ea1a4.pdfIn PDF document text
    • http://kopavavabigi.66ghz.com/ziwurabufidowiratenaxo.pdfIn PDF document text
    • http://wukosuwusa.iblogger.org/alchemist_leveling_guide_ragnarok_mobile.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387218/normal_5ff5f8a6615c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5fd7ed9e5ebb5.pdfIn PDF document text
    • http://kogemamumudun.22web.org/37502058736.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kubegixojarabax.epizy.com/concatenate_2_fields_in_crystal_reports.pdfIn PDF document text
    • http://fedubumisuvek.epizy.com/overleaf_latex_templates.pdfIn PDF document text
    • http://bilunijo.epizy.com/ableton_live_free_crack_full.pdfIn PDF document text
    • http://jokokitot.rf.gd/balsa_wood_sheets_2mm.pdfIn PDF document text
    • http://tufuripisaren.epizy.com/aaa_logo_fonts.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_off0000d4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AC 5244 bytes
SHA-256: 8a81d4c1214a1aa635cfab48d86a719ea97f0b1a1cbebb738e040601c1e313cb
font_01_sfnt_off0000e6a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A0 11744 bytes
SHA-256: 225391a89028bc2702eb14a946cb6560405311b06ab2fdba7bdcf8768ed9a73e