Malicious PDF — malware analysis report

Static analysis result for SHA-256 fedc75978f331e00…

MALICIOUS

PDF

70.8 KB Created: 2021-02-24 02:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fca7b29c08ba2c36c198d8fbd2d36fc7 SHA-1: 474d7836d10b3670ce91d514795b2b442bae83e3 SHA-256: fedc75978f331e00ea84430a4a369b60492141ff50a5bfa494bf31f4839a92ec
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://bologen.ru/wix?keyword=mca+practice+test+grade+3+math PDF link annotation
    • http://povar2020.site/email_asking_for_information_about_admissionnakrs.pdfIn PDF document text
    • http://safetymirrors.xyz/cdc_sexually_transmitted_disease_surveillance_report9lu0d.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/je7ghjh/27745243638.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382208/normal_60010ef0a7b29.pdfIn PDF document text
    • http://reduslimitaly.website/plockmatic_bk5030_manuale975r.pdfIn PDF document text
    • http://pycnidwzxc.info/steampunk_puzzle_brain_challenge_physics_game_answers2d51m.pdfIn PDF document text
    • http://repochka.site/dnd_spell_sheetm9xps.pdfIn PDF document text
    • https://cdn.sqhk.co/levuzivanu/hgHia54/luwokimusarulipiforo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379613/normal_6032627cd5e04.pdfIn PDF document text
    • http://shoppermarket.online/manual_de_usuario_dodge_stratus_20067t3h1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452389/normal_5fd87aab7dac2.pdfIn PDF document text
    • http://legendbilisim.com/competencia_comunicativa_cantu_flores_roquez2zg3.pdfIn PDF document text
    • http://palitra-cveta.ru/932158160033eich.pdfIn PDF document text
    • http://realwockyc.info/94803478054hquy4.pdfIn PDF document text
    • http://fb-copyright-help-from.com/el_vendedor_mas_grande_del_mundoi0dma.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xufoxorog/angular_7_vs_angularjs_performance.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD3D 5196 bytes
SHA-256: a9d4afcedbb7c21e5e832cffe928a2c1ceecfc2008a772090d2c8ee69f99d283
font_01_sfnt_off0000dee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE4 9664 bytes
SHA-256: 8496788024908a463c5ab29d2aedea8f057f7054ef9c7aec580df2bb87549c9c
font_02_sfnt_off0000fff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF7 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361