Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bae2a70e4e8bdd3…

MALICIOUS

PDF

67.5 KB Created: 2021-02-23 06:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c4bb389596449f8e27a6a962efde8076 SHA-1: 64a2942f67db03d5c918c886e0856d871cf1e3c5 SHA-256: 5bae2a70e4e8bdd336051f9b1d5a2e5e15cfcb113d3df581b9060b5264432814
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://bologen.ru/wix?keyword=hanukkah+worksheets+ks1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467287/normal_602947cc9227c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420020/normal_5fd33579027a7.pdfIn PDF document text
    • http://topcreditmonitoring.info/titanic_theme_song_flute_sheet_musiczltsl.pdfIn PDF document text
    • http://storezone.info/gollux_prequest_guide_2020uho13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497079/normal_601aa3dca4d3b.pdfIn PDF document text
    • http://servempieza.site/ps4_vr_roller_coaster_simulator0tagi.pdfIn PDF document text
    • https://cdn.sqhk.co/wixakulu/ih5jdUE/73860941898.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/q319jgj/telstra_recharge_apple_pay.pdfIn PDF document text
    • http://tohld.in/4604081082gub2v.pdfIn PDF document text
    • http://fartook.online/doriselc3j68.pdfIn PDF document text
    • https://cdn.sqhk.co/mitejapeki/vUYiijL/47797924564.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376849/normal_5fd78c4fbf023.pdfIn PDF document text
    • http://realwockyc.info/hedonismo_eticaaeewu.pdfIn PDF document text
    • http://rewita.fun/68470800132qe0ro.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/potamotaz/what_atomic_orbitals_are_related_to_a_d_sublevel.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/laravel_forgot_password_email_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/43259066643.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/31407832974.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_off0000ce01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE01 4908 bytes
SHA-256: cb93c79dbb301991c0729bb8400ff4954e353068fed09e30d45b59a0449746ea
font_01_sfnt_off0000dec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC0 10140 bytes
SHA-256: 0475537406889ee22c56ef4dad0c6c4898e33f9489a094047697621b8e018700