Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6729ed9f440a4a…

MALICIOUS

PDF

72.3 KB Created: 2021-02-27 21:14:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e45daca2e99786cf29221f75ee84f0a6 SHA-1: 7db39a7bf861a827331b398ff10b344ec5df9ddc SHA-256: 6f6729ed9f440a4aa7092f511efddae76707e3f813e1bff86c6141ffa19d3a97
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://jumiwimov.ru/award?keyword=skilsaw+12a+circular+saw+7-1%252F4-in PDF link annotation
    • http://tersq.space/how_to_write_a_case_summary_law3dhx5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447250/normal_60130ca974da7.pdfIn PDF document text
    • http://free-at.pro/36310341337h0rl9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473388/normal_6009a2d8a9c20.pdfIn PDF document text
    • https://cdn.sqhk.co/vumatoxikom/giwGSkA/tripp_trapp_tray_gray.pdfIn PDF document text
    • http://badge-verification-center.com/29264564802zv9xj.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/teamspeak_3_android_apk_crackedjrkl6.pdfIn PDF document text
    • http://criticcxck.space/google_form_multiple_choice_multiple_answerswsrgd.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/home_design_caribbean_life_game_mod_apk_download5fzby.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387821/normal_5fcf13ab2c162.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dexedigobejo.rf.gd/95458477999.pdfIn PDF document text
    • http://kamegowemegoguw.rf.gd/longitude_and_latitude_worksheets_with_answer_key.pdfIn PDF document text
    • http://zafurug.epizy.com/citroen_c4_pallas_manual__bom.pdfIn PDF document text
    • http://roxadib.epizy.com/coordinate_map_worksheet.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_off0000dddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDB 5472 bytes
SHA-256: 7f71900d70eee8b896604ff5a50a38a89d435d4460efda91cce56f0f9197949a
font_01_sfnt_off0000f0bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0BF 10600 bytes
SHA-256: ad440842fb18f4cc473c48b6c5e1347b0e067b3abe0b2e4e3e3221d1bff3b512