Malicious PDF — malware analysis report

Static analysis result for SHA-256 f85d32da75151e70…

MALICIOUS

PDF

72.8 KB Created: 2021-02-24 14:38:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 29cf5a2189b140f6e2491be1a5042595 SHA-1: 81c7b9ada46e00a2e605bc596e9e30c8f7439b90 SHA-256: f85d32da75151e70c13c887e34db18044e228713bfd70b7a019b6ef450f36a72
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wix?keyword=cooking+fever+hack+apk+mod+download PDF link annotation
    • http://vnds-v.website/283238880350w3b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377697/normal_602ea6efeaf99.pdfIn PDF document text
    • https://cdn.sqhk.co/barugogip/cD1fhgP/kiki_photo_studio_jawa_barat.pdfIn PDF document text
    • http://ig-soft-team.com/93811095728jhpmm.pdfIn PDF document text
    • http://gogotmif.space/27385812330ost73.pdfIn PDF document text
    • http://copyrightsafetyhelps.com/rococo_art_historyruc83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378160/normal_5fd14d3833aa9.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/deus_ex_human_revolution_inventory_modfbp9i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486353/normal_602dfc78beb7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425768/normal_601bb4e3afd2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479691/normal_5fcfac73b2b1c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499972/normal_60013f8539aa0.pdfIn PDF document text
    • http://teachersaid.fun/why_is_my_talk_talk_wifi_flashing_orange6d27s.pdfIn PDF document text
    • http://health2health.online/dovujanewamawixxljxu.pdfIn PDF document text
    • http://jushq.club/puloguxekogegjieoo.pdfIn PDF document text
    • http://technodom11.com/6522218877rhe9s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445864/normal_5fc76524cbc22.pdfIn PDF document text
    • http://aycotoro7.xyz/ucsb_environmental_studies_courseslduqm.pdfIn PDF document text
    • http://vsspb.ru/nivel_de_prevencion_primaria_de_la_influenzax80ts.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/dzKhbhi/lesiledutaxemudizotutari.pdfIn PDF document text
    • https://cdn.sqhk.co/tesolivu/agjjehg/36276890183.pdfIn PDF document text
    • http://begdas.space/what_do_the_different_colours_of_period_blood_meant1h35.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF96 5512 bytes
SHA-256: 9e78314783d1fc8a5d35211db6de345dc665f864e51c0961db7b5205fb616aa9
font_01_sfnt_off0000f248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF248 10412 bytes
SHA-256: 5249e339507b4e38d6a155393b6c89c5e6f36deca5bb2e06b11a6e8137b5da8c