Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00d0ddef17bcb79…

MALICIOUS

PDF

72.8 KB Created: 2021-03-19 20:03:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8b0600eae9345142e3e05694245ecf40 SHA-1: 90c0c21543a431c624fed6074e6a4582c35e1a77 SHA-256: b00d0ddef17bcb79bee2e5779f4c5f91949a18a28d381428417f8ab3497746a7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gimoguvi.ru/wix?keyword=my+hero+academia+season+1+episode+8+tagalog+dub PDF link annotation
    • http://megantv.site/guided_reading_lesson_plans_for_chapter_books7lm92.pdfIn PDF document text
    • https://cdn.sqhk.co/pivatiwon/z7hajbm/interview_coaching_answers.pdfIn PDF document text
    • https://donagifiwududo.weebly.com/uploads/1/3/3/9/133985641/7247612.pdfIn PDF document text
    • http://extraevents.ru/mothers_day_wisdom_quotesb723r.pdfIn PDF document text
    • http://pidawudimo.scienceontheweb.net/advertisement_format_for_class_11.pdfIn PDF document text
    • https://xaliwituxezaxe.weebly.com/uploads/1/3/5/3/135323019/3e3b0cce.pdfIn PDF document text
    • https://cdn.sqhk.co/wituruxa/ibpgZ5a/limobejog.pdfIn PDF document text
    • https://cdn.sqhk.co/zajagatetode/hgg3iem/zabuwotobokakuwugalejon.pdfIn PDF document text
    • https://cdn.sqhk.co/sitopizol/jdquYia/debate_school_uniforms_should_not_be_banned.pdfIn PDF document text
    • http://hyipinvest.site/inteligencia_emocional_test3itl8.pdfIn PDF document text
    • https://cdn.sqhk.co/gojapawareke/Srjjhic/53240815027.pdfIn PDF document text
    • http://zubiki.top/liziguzugunaturss3k2.pdfIn PDF document text
    • http://vivudanu.scienceontheweb.net/87953282123.pdfIn PDF document text
    • https://cdn.sqhk.co/xisalaximel/jgg5hbG/streamlabs_obs_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/h8hmIih/17228164522.pdfIn PDF document text
    • http://mavigawika.scienceontheweb.net/fijem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bidusibebawuz.onlinewebshop.net/80085097574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34c6c0f9-aca9-4680-b00c-f5da24b2f386/keriredub.pdfIn PDF document text
    • http://sukokovevaz.atwebpages.com/what_does_7_years_song_mean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1542747-7efe-48ac-b321-7d80e2931498/google_maps_timeline_creepy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15afa607-5fac-4f96-827f-7e87b483a9d9/10391589232.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDDC 4652 bytes
SHA-256: fccf4d38a57c10a27d99ed11cb54cf0e10cf87612221ef50d8b32fc8b1dbb3c2
font_01_sfnt_off0000de37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE37 5980 bytes
SHA-256: 02c4d3c43bbc8a70ad4c9b3d00f87d8b0471615bd5953ff9beb187be3d4dea00
font_02_sfnt_off0000f274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF274 10204 bytes
SHA-256: c221341424c7f405bd8c0b9f25128e66c9feeda2ec6ef4d0f87278092d728200

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