Malicious PDF — malware analysis report

Static analysis result for SHA-256 909192ece6dcb6fd…

MALICIOUS

PDF

72.6 KB Created: 2021-02-17 22:01:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 163cec0320169d50844fa61709702128 SHA-1: abc857007ae0e6509187a8bf82b0478fb2af461c SHA-256: 909192ece6dcb6fda1a6dd267e6c28af2e16eb1f6437c656104243a14b4e5df0
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://jacksth.ru/123?utm_term=walgreens+humidifier+in+store PDF link annotation
    • http://naturwow.space/android_auto_screen_mirror2vvx1.pdfIn PDF document text
    • https://cdn.sqhk.co/dugixikisim/WwG2hiL/learn_singing_online_free_beginners_telugu.pdfIn PDF document text
    • http://fitokapss.xyz/ejercicios_de_acentuacion_de_palabras_agudas_llanas_y_esdrujulas70dg2.pdfIn PDF document text
    • https://cdn.sqhk.co/tifesiwafo/Jthfcjg/alien_blackout_strain_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wanuvudeb/jbBLQje/2_color_passport_size_photos.pdfIn PDF document text
    • http://unlockdeals.shop/jefulb7lqm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368951/normal_60001fb2e745f.pdfIn PDF document text
    • http://adv-workshop.site/3ds_emulator_uptodownxfd7j.pdfIn PDF document text
    • http://olymp-trade.top/crowd_followers_hungry_flip_master_unblocked1bg9n.pdfIn PDF document text
    • http://fevozogu.iblogger.org/wordpress_tutorial_video_download.pdfIn PDF document text
    • http://universe1.space/my_princess_boynrny8.pdfIn PDF document text
    • http://dreamingdeveloper.com/barbie_dress_up_games_for_pciyaj1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484633/normal_60174f3aa2b6f.pdfIn PDF document text
    • http://microbladingeyebrowsdallastx.com/square_one_blackpink_albumewdr4.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/lofese/rebibajonago.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/88789962749.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/centralized_ac_system.pdfIn PDF document text
    • http://rigitusavogu.epizy.com/braehead_primary_school_uniform.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_off0000df7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7C 5332 bytes
SHA-256: 8798455c0764da3d6abebda1d438c28cab8b94177fbfcb7cfd7f251875225a91
font_01_sfnt_off0000f17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17B 10476 bytes
SHA-256: 994eaad194b197d44ab485f667a75dc8b5961765f6821545a2d0b69a8388cba2