Malicious PDF — malware analysis report

Static analysis result for SHA-256 35bc86e751e4b2da…

MALICIOUS

PDF

68.1 KB Created: 2021-03-01 21:09:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2515ccfb96f7f5bdbf445d9fcfedb6b4 SHA-1: c87a4890d218a49a28c7831e1cbccf31f7178e59 SHA-256: 35bc86e751e4b2da0dc933df366067b5d85897155a86319992012d33cafca790
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://gimoguvi.ru/award?keyword=hp+elitedesk+800+g1+mini+max+ram PDF link annotation
    • http://liginirudusupob.22web.org/night_elf_hunter_leveling_guide_vanilla.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/RPigiiL/f1_2016_mobile_game.pdfIn PDF document text
    • http://lnstagrambusiness.com/zulidumayl528.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/argumentative_essay_format_mla.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/how_to_review_photo_tags_on_facebook_before.pdfIn PDF document text
    • http://bozidik.22web.org/fuji_hakone_pass_japan_guide.pdfIn PDF document text
    • http://farvestnn.ru/como_hacer_un_panel_solar_casero_para_calentar_agua3y7a3.pdfIn PDF document text
    • http://latencfsrt.space/97165659883dt95d.pdfIn PDF document text
    • https://cdn.sqhk.co/guzoladip/jXJgghe/majojegojuvifijabimup.pdfIn PDF document text
    • https://cdn.sqhk.co/xalibolopov/iajbmij/touchdown_exchange_app_android.pdfIn PDF document text
    • http://jeratojovu.66ghz.com/another_day_in_paradise_audio_song.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/jcibU62/pegobilenin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pawubiba.epizy.com/texas_code_of_judicial_conduct.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/2012_jeep_grand_cherokee_overland_5.7_specs.pdfIn PDF document text
    • http://gurabagoderes.atwebpages.com/rumotel.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_off0000ca46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA46 5760 bytes
SHA-256: 41998858886245b7cd3dcce4b7a65e4770de8509d608e6879512e9f0528ee00e
font_01_sfnt_off0000ddd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD2 11240 bytes
SHA-256: bdaaf46c611b9dfbb89638257bb9a8ccaf2a1e44000edfb1927abe2c2d2e0776