Malicious PDF — malware analysis report

Static analysis result for SHA-256 9079f20a2f8dc45c…

MALICIOUS

PDF

74.2 KB Created: 2021-02-24 18:23:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 813e14853018207ba5dec7c3c9d7120e SHA-1: bd57abfde54102f8c441af3c02c9718102ab384c SHA-256: 9079f20a2f8dc45c5ed520f8ee3127e4e555a483c65f02c92f1d55f98e483a2e
186 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/award?keyword=excel+vba+function+call+on+left-hand+side+of+assignment PDF link annotation
    • http://figimumagoko.mygamesonline.org/turn_off_stability_control_jeep_jk.pdfIn PDF document text
    • http://fruittea.space/hallelujah_cohen_roger_emerson8elj8.pdfIn PDF document text
    • https://cdn.sqhk.co/gevagedubop/kjdhfjf/11912355356.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/suhaje2/1502195279.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/ffFlgcy/kingturn_rpg_plus_full_version_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/parikozug/Qnjeidd/real_air_jordan_1_bred.pdfIn PDF document text
    • https://bejetatibuket.weebly.com/uploads/1/3/5/9/135957672/2a2d89f69d6629d.pdfIn PDF document text
    • https://cdn.sqhk.co/sirejeforox/gc2igKs/games_cheat_codes_xbox_360.pdfIn PDF document text
    • https://cdn.sqhk.co/woferomot/AZhfeic/talion_french_meaning.pdfIn PDF document text
    • http://hihikane.space/technical_drawing_with_engineering_graphics_free1apps.pdfIn PDF document text
    • https://cdn.sqhk.co/jidelugob/dgcCjou/motorbike_rider_nitro_motorbike_riders.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tefetuzuzip.myartsonline.com/how_to_repair_windows_10_corrupted_system_files.pdfIn PDF document text
    • http://vujapoguxesak.myartsonline.com/adjusting_journal_entries_in_quickbooks_online.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/aieee_online_form_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/fatubaxe.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_off0000e362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE362 5596 bytes
SHA-256: f3d7d10fc9f72f46a846bab43faebf5aede9e3513bc92d1389d35c1b7b9c3bb5
font_01_sfnt_off0000f660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF660 11320 bytes
SHA-256: 29ba1bbc323bc4e3a0933afed5c57de809b9d7d820d8422cd80b120f1cc2bf5a