Malicious PDF — malware analysis report

Static analysis result for SHA-256 b77228748e9baad8…

MALICIOUS

PDF

75.9 KB Created: 2021-02-19 17:52:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6d1cee8893a3c75bab108871c7f24276 SHA-1: 221630c877ef6fb338dccd893d78917b76ff4a45 SHA-256: b77228748e9baad819d8042a80b9d19264d1c1b457600593b2f5c67274dddec3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://seumenha.ru/wix?keyword=anderson+county+jail+inmate+search+texas PDF link annotation
    • https://jivikusobule.weebly.com/uploads/1/3/5/3/135326696/netovuzijerinem_gipob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370529/normal_5fec9b14ba723.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464862/normal_5ffccb225e093.pdfIn PDF document text
    • https://kujadivenudeku.weebly.com/uploads/1/3/5/3/135324903/kepalaxogiduravo.pdfIn PDF document text
    • http://hangookoil.ru/668049203791sy7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377125/normal_602a2e096e6b3.pdfIn PDF document text
    • https://gisoroweri.weebly.com/uploads/1/3/4/8/134893792/govop_rebux_savezinofu_pefufebijuwevi.pdfIn PDF document text
    • https://xetuvamabur.weebly.com/uploads/1/3/1/4/131409037/tebexekit_wizorixabukufuw_niperidaduke_fasitiretozajix.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403428/normal_6005f4212442f.pdfIn PDF document text
    • http://service-hire.com/baroque_guitar_plansmya47.pdfIn PDF document text
    • https://vefonero.weebly.com/uploads/1/3/1/0/131070196/keluxaxeto.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://setuvufijub.epizy.com/british_council_general_reading_test_2_answer.pdfIn PDF document text
    • http://divifafapinuk.rf.gd/nsw_police_incident_report_phone_number.pdfIn PDF document text
    • http://nawatelobuj.rf.gd/64793202010.pdfIn PDF document text
    • http://mefowoweman.epizy.com/77131158301.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/dikoromomejebi.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/44111719610.pdfIn PDF document text
    • http://jigigapapidafe.epizy.com/bombay_movie_song_pagalworld.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_off0000ed40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED40 5412 bytes
SHA-256: 2739004a4fcfe483749009755fcf0e7124021ac1dd3fffb589e4310fa75ffe80
font_01_sfnt_off0000ff90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF90 10196 bytes
SHA-256: 75107f60cfeb3c8e887fd988babedc97f3aadd2fc3cd69c458bd9635d71d0f5d