Malicious PDF — malware analysis report

Static analysis result for SHA-256 36153e0a3689c058…

MALICIOUS

PDF

80.6 KB Created: 2021-03-24 09:04:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9acdbedb2be1f8c38d37855114cda50e SHA-1: 7d48ec6747f004b1b06bc2ffd1336705695d4f5c SHA-256: 36153e0a3689c058d7254971db00bde2d28fef7fed019c1d07dfdbc68dc7579b
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. The PDF contains numerous embedded URIs pointing to external websites, suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates a pattern of using disposable hosting for these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jumiwimov.ru/award?keyword=fleetwood+mac+never+going+back+again+tab+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467277/normal_5fd9075aa7b3a.pdfIn PDF document text
    • https://gematisi.weebly.com/uploads/1/3/4/5/134599806/monekup.pdfIn PDF document text
    • https://cdn.sqhk.co/dalegoti/b6fQnib/man_down_where_you_from_vine.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/xipadalokifupujuna.pdfIn PDF document text
    • https://cdn.sqhk.co/zarifabidit/iHPfdja/kunaxusemumadedukowi.pdfIn PDF document text
    • https://pabarubuvu.weebly.com/uploads/1/3/1/3/131379718/vajot.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/what_is_a_free_motion_sewing_machine.pdfIn PDF document text
    • http://midimox.getenjoyment.net/87464480172.pdfIn PDF document text
    • https://memezuwiz.weebly.com/uploads/1/3/4/7/134702577/jojutajimego_jozomow_deregijafe_tejojewilizir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_604e15f527458.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/gokomel.pdfIn PDF document text
    • https://xidoxuzi.weebly.com/uploads/1/3/4/7/134707988/ff92d454dc.pdfIn PDF document text
    • http://rubewox.sportsontheweb.net/can_i_use_my_oven_like_an_air_fryer.pdfIn PDF document text
    • http://pedagodogiko.getenjoyment.net/whats_the_best_app_for_free_music_download.pdfIn PDF document text
    • https://mavobomuwatu.weebly.com/uploads/1/3/4/5/134592479/fapumidoseki.pdfIn PDF document text
    • http://puvinizozibejir.mygamesonline.org/55687137778.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/air_crash_investigation_reports.pdfIn PDF document text
    • http://lejidakoxinetog.mywebcommunity.org/bofapozepuxikim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407729/normal_5fcdb4833b6e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465136/normal_6012cebc988eb.pdfIn PDF document text
    • http://rarubife.mygamesonline.org/sat_test_10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482018/normal_600220cf7d997.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fumibilulad.atwebpages.com/zirujogajo.pdfIn PDF document text
    • http://wupidusujimi.myartsonline.com/64322158561.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_off0000fc95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC95 5608 bytes
SHA-256: e6ae908e61ff62111360213002de0e99a95bd0d1540f03d4dabf2be81ba2eb31
font_01_sfnt_off00010faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FAF 10784 bytes
SHA-256: 3e7b747a9614cd109eddaf092595e56951ef8c333dfd9015826442d455fb6a50