Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d23070742620a5d…

MALICIOUS

PDF

74.6 KB Created: 2021-03-02 05:21:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f669b855c6f57c4bc4c9f13027b90158 SHA-1: 7d2ccc9d34378c539442514e1fdcd4e5f2907243 SHA-256: 1d23070742620a5df2d90f565f8e3df7180f0680bfc88b1aa4f18891811fdfc4
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=battle+cats+hack+no+human+verification PDF link annotation
    • http://kartaidatodemeleri.com/free_excel_construction_cost_estimate_templatejsg0m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467277/normal_601797b79cecd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378171/normal_5fcf0afe9aaa0.pdfIn PDF document text
    • https://cdn.sqhk.co/bikawegaj/dziep5M/pigozunudipututote.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/diZat48/download_film_fist_of_fury_2020.pdfIn PDF document text
    • http://itdomen.fun/10822188120gt7gx.pdfIn PDF document text
    • http://plusstore.pro/80869697643wgtx6.pdfIn PDF document text
    • https://cdn.sqhk.co/wejewenu/jdgcmqe/best_photo_editing_app_for_computer_free.pdfIn PDF document text
    • http://winwites.space/36497524814un7cx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382974/normal_602b0894b3ebd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491155/normal_6035b505ec237.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/oocThgN/89846240076.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://danijikuguwidak.rf.gd/51134984383.pdfIn PDF document text
    • http://demunoj.epizy.com/badewadezujabu.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/18441482472.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/10126498514.pdfIn PDF document text
    • http://xutarefes.epizy.com/finazemitadesezivasofuso.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/chutkule_free_hd.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_off0000e770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE770 5296 bytes
SHA-256: 2c445a979b359f2cb8b830493ff517f55b66752a67cfe070497c30ae7977b321
font_01_sfnt_off0000f94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94D 10688 bytes
SHA-256: 0358c3fb8747f0818968c47a17a1a343633a2709735f6adf69c93f238720c8c1