Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e3cd814ce742b52…

MALICIOUS

PDF

68.7 KB Created: 2021-02-20 06:44:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e317a2e9b429b303d181ec7cda85658f SHA-1: df7bd51c4888dbc052bca234895fae137188471b SHA-256: 6e3cd814ce742b52f8bc20b50099a2cab3a185070410fb2d4fd82e9d984b9940
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wb?keyword=why%20did%20humphry%20davy%20invent%20the%20lightbulb PDF link annotation
    • http://googsnat.space/2592306988924ud5.pdfIn PDF document text
    • http://busurman.space/google_sheets_goal_seek_scriptdjxz4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468534/normal_60018d0777abf.pdfIn PDF document text
    • http://euroshopmn.space/algebra_lineal_gratis6mtz2.pdfIn PDF document text
    • http://faceit.su/critical_thinking_12th_edition_downloadewtja.pdfIn PDF document text
    • http://lnstagrambusiness.com/playbill_example4l833.pdfIn PDF document text
    • http://complerbnp.com/starlink_battle_for_atlas_switch_review_metacriticwl8zn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443344/normal_5fda476bf07b5.pdfIn PDF document text
    • http://myyshooop224.site/cat_run_game_hackh434y.pdfIn PDF document text
    • http://creditstar-kabinet.com/mozezutinipp8zp.pdfIn PDF document text
    • http://allerlo.xyz/97517284440jva93.pdfIn PDF document text
    • http://uaportal.site/27165983535rrpss.pdfIn PDF document text
    • https://cdn.sqhk.co/gatavazer/aUJFjcF/verizon_one_talk_voicemail_set_up.pdfIn PDF document text
    • http://discount50it.pro/108331478024ba6i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puguvapalovuzub.rf.gd/amapiano_2019_dance_videos.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_off0000cf14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF14 5508 bytes
SHA-256: c34d873daef1d5a5119fa899c0e2f5d9420277540d3f364ab00a44ba7e6b9656
font_01_sfnt_off0000e1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B8 10700 bytes
SHA-256: 89048c7cdde67c9f46e19e4eb594ec4c2383219008bace2d1bf8cdc89410d672