Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aa8309bfb27258e…

MALICIOUS

PDF

72.6 KB Created: 2021-02-27 06:35:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ebf9087d07986b040e282237ddd57354 SHA-1: 315ef2e602eda69dbf8a7014e826994cd9630b69 SHA-256: 9aa8309bfb27258ef1906bb07e18712183d8ac8e5992188c3238ec68ef330d52
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://maypoin.ru/award?keyword=citizen+setting+instructions+e870 PDF link annotation
    • http://gigurokubi.66ghz.com/comparing_unlike_fractions_worksheet.pdfIn PDF document text
    • http://iclod.tech/69201361903ipurt.pdfIn PDF document text
    • https://kokozorakozuwel.weebly.com/uploads/1/3/0/7/130775651/bilejuda.pdfIn PDF document text
    • http://sodamasagu.66ghz.com/bootstrap_material_design_dashboard_free_template.pdfIn PDF document text
    • http://canonsburglake.org/kimijavufamozapunolujumok6tqy.pdfIn PDF document text
    • http://infokurs.design/what_s_your_story_in_one_line_fiverrf2rfw.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/how_to_change_toner_on_brother_mfc_printery6b80.pdfIn PDF document text
    • http://obzorov.site/rigiwiwolupanikaxija8agod.pdfIn PDF document text
    • http://tdsevsvet.ru/zaputapiku79sy0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456984/normal_5ff45f4b8b5ed.pdfIn PDF document text
    • http://appless.space/medio_de_comunicacion_mas_antiguo4fm93.pdfIn PDF document text
    • http://losqutoq.online/manufacturer_of_galvalume_roofing_sheetshlezy.pdfIn PDF document text
    • https://xujuwoxevosu.weebly.com/uploads/1/3/4/8/134896670/nikuvulimizaputameva.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4505839/normal_5ffe7bd409a25.pdfIn PDF document text
    • https://rudotuvesil.weebly.com/uploads/1/3/5/3/135398110/b3b7f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bebamefuveb.rf.gd/how_much_weight_do_you_lose_on_21_day_sugar_detox.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/zapiwokujovejum.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_off0000e0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BD 5096 bytes
SHA-256: e3a12455c63dc2ea313a7230f221fd5faffb79aeff92ae0043428ac27d6e20aa
font_01_sfnt_off0000f235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF235 10100 bytes
SHA-256: 936ab693cc8bd6b3a4112f9684b65e6c82731a3c913aa440dc25b3882de029e7