Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ab944091599c752…

MALICIOUS

PDF

69.0 KB Created: 2021-02-20 19:45:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4b0070a5ca5a9e2465001c475dee3a9a SHA-1: 57b7f99b301c3e6c7f343f5dede48af03d6b777e SHA-256: 3ab944091599c752eb9c588e1f1138a8811574a3d2d346a0e3a3ab95e69b0f07
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://maypoin.ru/wix?keyword=shrek+vs+shaggy PDF link annotation
    • http://tivewuba.iblogger.org/template_ppt_keren_gratis_2018.pdfIn PDF document text
    • https://suzixibaru.weebly.com/uploads/1/3/4/7/134709676/pibotuzapunibirebi.pdfIn PDF document text
    • https://fikoroviv.weebly.com/uploads/1/3/0/7/130740338/kixevokejodiwaben.pdfIn PDF document text
    • http://xumegexujarev.22web.org/diary_of_a_wimpy_kid_character_description.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449172/normal_600e338c0fe6c.pdfIn PDF document text
    • https://kaxapanokatonab.weebly.com/uploads/1/3/1/0/131070327/3b6c578f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_601dcffadae26.pdfIn PDF document text
    • http://xulikugo.iblogger.org/androidx_appcompat_github.pdfIn PDF document text
    • http://toxedajenoxin.66ghz.com/dependent_variable_and_independent_variable_worksheet.pdfIn PDF document text
    • https://xejigidusulup.weebly.com/uploads/1/3/4/7/134730122/18027281b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374852/normal_5fd664f6bb8ad.pdfIn PDF document text
    • http://vitedotom.iblogger.org/22666177894.pdfIn PDF document text
    • http://gedawirij.66ghz.com/fojimemixuzodixupaminazu.pdfIn PDF document text
    • http://fenofaxizuva.22web.org/89800045090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387590/normal_600af2f073c4f.pdfIn PDF document text
    • https://wotapidedodibi.weebly.com/uploads/1/3/4/4/134475573/susujupazitat.pdfIn PDF document text
    • http://gadomiru.22web.org/potabore.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wisunabowogus.epizy.com/88448465405.pdfIn PDF document text
    • http://wegijadisi.rf.gd/vidmate_free_2018_for_pc.pdfIn PDF document text
    • http://totajenu.epizy.com/xedegiwuxamesivadegi.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_off0000d0cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0CB 5244 bytes
SHA-256: 13e45d85bdb4ca8a63d6ea4ae56c7d67ba0fe5ff2f76f1a502363315fd0a2ac5
font_01_sfnt_off0000e2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A4 10564 bytes
SHA-256: 2e49dacb4e4eb1c8ed00b97dce2306aa4fd034d22c55a63f8039d1473dcc454c