Malicious PDF — malware analysis report

Static analysis result for SHA-256 8900b08bcd4f28ae…

MALICIOUS

PDF

73.2 KB Created: 2021-02-28 22:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 778030c1f56db0d038f07c75d1c36c47 SHA-1: 716bbff682c908c103eafe62915688fa32f247ca SHA-256: 8900b08bcd4f28ae97807a7eac1b1554a8249b62e22f4e7793e6711b916da351
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/wb?keyword=marvel%20movies%20in%20chronological%20order%20of%20events PDF link annotation
    • http://ideal-it.fun/what_is_the_strongest_intermolecular_force_present_in_a_beaker_of_ch4eavcw.pdfIn PDF document text
    • https://dopitusorotid.weebly.com/uploads/1/3/0/7/130738794/lozufot_vasalix_tetewomunenem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469645/normal_600d0069e197c.pdfIn PDF document text
    • http://pomuropujuj.22web.org/il_fs_forensic_audit_report.pdfIn PDF document text
    • http://ruwegekugite.22web.org/coliforms_in_well_water.pdfIn PDF document text
    • http://nonowun.mywebcommunity.org/sony_dcr-sx22e_price.pdfIn PDF document text
    • https://dulewexafup.weebly.com/uploads/1/3/4/7/134702005/vomanoz_gesuxofoj_xipujineba_zitegeb.pdfIn PDF document text
    • http://fepekasizu.iblogger.org/allah_hu_allah_audio_song.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485591/normal_60179b869e17d.pdfIn PDF document text
    • http://fredo.bike/impossible_quiz_2_answers_22d37me.pdfIn PDF document text
    • http://dawajilimomod.iblogger.org/mcgraw_hill_assessment_answers_algebra_2.pdfIn PDF document text
    • http://lojasamericanasbr.com/beaded_long_sleeve_formal_dressaxsta.pdfIn PDF document text
    • http://it50disconto.pro/22558853326aucmb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dodemupisam.epizy.com/daruvetavuwametazugilu.pdfIn PDF document text
    • http://gezixus.myartsonline.com/the_outsiders_anticipation_guide_answer_key.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_off0000e08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08B 5500 bytes
SHA-256: 37498f00a1be931627a7019d8707ba441f8ab7102a9a0ed1e489e0546ebad09d
font_01_sfnt_off0000f326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF326 11008 bytes
SHA-256: c545ed35c6e1b8d26a8737bd3c64c957799613e2c0339861c256737a5047f30e