Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6a64ec224df705…

MALICIOUS

PDF

73.2 KB Created: 2021-03-02 15:58:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 53e4faf0f756f53c033f6e03e21d9477 SHA-1: ab93d2ac98e34853ff7ac9133292f01f798c5548 SHA-256: ce6a64ec224df70594e9cd57336e95ce4b1189874c29759e6493c8dd8402c80c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/strik?utm_term=fundamentals+of+microelectronics+razavi+pdf PDF link annotation
    • https://cdn.sqhk.co/gidenateg/3OhfjjZ/temepaxulikidola.pdfIn PDF document text
    • http://pibarulajido.getenjoyment.net/29064569956.pdfIn PDF document text
    • http://rowexusaje.mypressonline.com/36638769651.pdfIn PDF document text
    • http://gexomafe.mypressonline.com/dirt_devil_featherlite_canister_vacuum_reviews.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414360/normal_600af71663c8f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413585/normal_5fc810afc8a0a.pdfIn PDF document text
    • http://faxagigotitij.66ghz.com/p_name_status_video_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wanaxowuwot/jfQqgYj/pokemon_battle_simulator_gen_8.pdfIn PDF document text
    • https://cdn.sqhk.co/mudebijutene/ha07d9c/kaketikukumu.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/sp-06604_aci_detailing_manual-2004.pdfIn PDF document text
    • https://cdn.sqhk.co/zotiperugi/jf0ClHl/rally_championship_xtreme_download_pelna_wersja.pdfIn PDF document text
    • http://dazinifuxevoji.22web.org/mid_module_assessment_task_5.2_answers.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/mujevubutukoxu/bunewuwifugugizu.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/majirigedumimiwuzut.pdfIn PDF document text
    • http://pejonoma.epizy.com/dragoneer_s_aria_item_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/fishing_report_colorado_springs_area.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/31993891503.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/xejepelumojifomol.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_off0000de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE74 5364 bytes
SHA-256: 93ff5c5ac94178d77a03b23af6ab04b49b235e6e97ae77ed9ca7e3a79ed93a2d
font_01_sfnt_off0000f0b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B6 10820 bytes
SHA-256: d22f378092287db60a53c447e17530cb2b9fc101462ab12a545b9a0895ab4d6c

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