Malicious PDF — malware analysis report

Static analysis result for SHA-256 18664f25d25b70d2…

MALICIOUS

PDF

72.9 KB Created: 2021-01-28 18:58:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5f145739177689c0d74f6c633256e879 SHA-1: 1a2bf0f35f43286b5bfe922f762ff7e04623d9da SHA-256: 18664f25d25b70d2c1fe25d6ef723f89b36b2be16f6c237f8b6b3b431139c6bd
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/wb?keyword=bad%20banks%20season%20cast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478402/normal_5fece5d0529dc.pdfIn PDF document text
    • http://ubsvp.com/raxiretabifokoxufejif9eeq.pdfIn PDF document text
    • https://cdn.sqhk.co/bowewulaxam/gdsnLVI/depebujemelibavag.pdfIn PDF document text
    • http://grinallex.shop/80996125493upjai.pdfIn PDF document text
    • https://kadefevexenikoz.weebly.com/uploads/1/3/0/8/130813118/boladipat-gubanajulupek-vixagubeli.pdfIn PDF document text
    • https://sazebajamafogi.weebly.com/uploads/1/3/4/2/134265793/7868191.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/zenugoguloponuvewumevodpivqe.pdfIn PDF document text
    • http://prod-fruit.space/casio_ez-label_printer_kl-120_manualmdf24.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/s1jaTha/the_trail_of_tears_cherokee_legacy_worksheet_answers.pdfIn PDF document text
    • https://minaraxu.weebly.com/uploads/1/3/4/7/134765114/4731729.pdfIn PDF document text
    • https://sopetenoredu.weebly.com/uploads/1/3/5/3/135318191/xafepol.pdfIn PDF document text
    • https://cdn.sqhk.co/vutexexukus/fjf3jdZ/rojefezi.pdfIn PDF document text
    • https://vifiboreb.weebly.com/uploads/1/3/5/3/135349596/ca3af.pdfIn PDF document text
    • http://raifaisentgo.online/battlefield_board_game_rules6pvpk.pdfIn PDF document text
    • http://pogadai.xyz/bujos8fqyr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391024/normal_5fcc087e5543d.pdfIn PDF document text
    • http://masterpowerpoint.com/harvest_means_in_spanishkudrr.pdfIn PDF document text
    • http://carluxepaint.site/7277978030667829.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE093 5060 bytes
SHA-256: c8e6d4bc1a32f9f6feec9788a2995fcee5f95f3f14203f1f7b316e1cf5ea05a2
font_01_sfnt_off0000f1db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DB 10860 bytes
SHA-256: ff5cf478dea8f8d6578aa5084061b4cd18306f6d5c5054058c92dd98c1a77135