Malicious PDF — malware analysis report

Static analysis result for SHA-256 50cc9d33e3544a32…

MALICIOUS

PDF

70.6 KB Created: 2021-02-26 16:25:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e493c8e76f3fee2d8131213f687fc999 SHA-1: 55919fcaf4f8ae9e2c3e603a00b940b011995a05 SHA-256: 50cc9d33e3544a32d60de40f35a80cb666e06349a853efc81fb83deb390952e6
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://seumenha.ru/award?keyword=cuisinart+dlc+7+super+pro PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415754/normal_600636f84b9eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420432/normal_60147eb592a39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374859/normal_5fd1b32c635ae.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/cbignig/amazon_fire_tv_4k_stick.pdfIn PDF document text
    • https://cdn.sqhk.co/tenalewi/gcBjjEY/english_grammar_worksheets_for_8th_grade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451348/normal_6035145ab33a7.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/citizen_nighthawk_promaster_eco-drive.pdfIn PDF document text
    • http://podeves.xyz/mario_kart_tour_multiplayer_ranking_systemc2oeo.pdfIn PDF document text
    • https://cdn.sqhk.co/fezavomol/ihibK7D/movie_premieres_2020_covid.pdfIn PDF document text
    • http://liteponezugom.22web.org/my_talking_angela_hack_free_apk.pdfIn PDF document text
    • http://afracheat2.xyz/english_conversation_exercises_with_answersi4qxv.pdfIn PDF document text
    • https://cdn.sqhk.co/vemosoveveb/hfwhgZA/info_spider_solitaire._org.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/jixeremipet/ritovexatopap.pdfIn PDF document text
    • http://birabigipo.epizy.com/como_fazer_um_resumo_de_um_livro.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/gikemarebutukider.pdfIn PDF document text
    • http://tabarok.rf.gd/pardesi_anthem_full_song_mr_jatt.pdfIn PDF document text
    • http://naxilolebepup.epizy.com/black_and_white_hexagon_sheet_vinyl.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/milupexib.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_off0000d715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD715 5052 bytes
SHA-256: e438a17b3f9da5eb2b8cf8295e5ab4abc45468b620eded524478e6e41a71bd04
font_01_sfnt_off0000e855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE855 10428 bytes
SHA-256: 78599aecc831fe7f44c39f80aad5d5edb18e18985343c1a1deca7409e1227b77