Malicious PDF — malware analysis report

Static analysis result for SHA-256 f994ec3aca06c939…

MALICIOUS

PDF

72.2 KB Created: 2021-01-31 18:25:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 4553d1510b4f7124b40e9a2996d66409 SHA-1: 49a29b4b15c99ead511cc680965188dcec174eba SHA-256: f994ec3aca06c9391fb6f7fcf89904b60374ba43933d3e1b7492aa9ec87c0889
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wb?keyword=n64%20emulator%20games%20not%20working PDF link annotation
    • http://rimka.xyz/toca_kitchen_online_game_freeebrih.pdfIn PDF document text
    • http://legko.travel/piwolabovndh6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458837/normal_5ff94096ce72f.pdfIn PDF document text
    • https://cdn.sqhk.co/dakuwuwuzije/jbM5yof/73709025096.pdfIn PDF document text
    • http://agreevudb.rest/34761297035irpd6.pdfIn PDF document text
    • https://cdn.sqhk.co/pemoxeriko/5quheKl/63976263612.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424347/normal_5feaed2772828.pdfIn PDF document text
    • http://gravkamen.ru/jariwolia08xm.pdfIn PDF document text
    • https://cdn.sqhk.co/fabunavaxa/Zo4AifP/free_presets_for_lightroom_polarr_filters.pdfIn PDF document text
    • http://gbo.guru/fexidinivuxedozovefodt1zi.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/bhdjghj/game_of_warriors_hack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/rhh1n4E/best_free_slot_games_to_win_real_money.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xonelamurojili.rf.gd/adobe_photoshop_cs2_safecast_keygen.pdfIn PDF document text
    • http://fuxodenajakifut.epizy.com/linux_os_interview_questions_and_answers.pdfIn PDF document text
    • http://gezewezelatemak.epizy.com/puxofitiduxapizitizebuj.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_off0000ddcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCC 5372 bytes
SHA-256: b739306cca11ea9435168cfa29baeb84d143ed4fc89f42cfe0161cbaeeff90ee
font_01_sfnt_off0000f01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01C 10508 bytes
SHA-256: f23c1d79b22303d20abe722d93b170369a15616a8249d982e4ee2ab4eb7eb4ac