Malicious PDF — malware analysis report

Static analysis result for SHA-256 2186f8c6a7d3ed26…

MALICIOUS

PDF

75.6 KB Created: 2021-02-24 19:13:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7bad1fb8bf98f1bf0740301780397c59 SHA-1: 48b7ce7b321f856d722f51b73e0ea7d25ec55a47 SHA-256: 2186f8c6a7d3ed261434cc6955b5b959ad88b4f0e0835560c63da16c4617dc23
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document is classified as malicious due to its credential phishing lure impersonating Spotify. It contains multiple external URIs and embedded links, including a redirector pointing to a PDF file hosted on Weebly, which likely serves as the phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving exploitation for client execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://galixasuja.weebly.com/uploads/1/3/4/5/134518214/zegunubokepuliladox.pdf.
  • 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://leonvi.ru/wb?keyword=lady%20macbeth%20quotes%20act%202%20scene%201 PDF link annotation
    • https://galixasuja.weebly.com/uploads/1/3/4/5/134518214/zegunubokepuliladox.pdfIn PDF document text
    • https://ditomivowulute.weebly.com/uploads/1/3/4/6/134679561/zirigobixixixut_winuziramabuga_foborovebofilut.pdfIn PDF document text
    • https://tutitobogin.weebly.com/uploads/1/3/4/4/134485970/dazigabeguvujane.pdfIn PDF document text
    • https://cdn.sqhk.co/gebunemif/dnKHQ8l/60641706635.pdfIn PDF document text
    • https://cdn.sqhk.co/zopinulepa/3HidHgj/mater_education_high_school_health_adventure.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/8896699.pdfIn PDF document text
    • https://cdn.sqhk.co/nomavunut/cidgd6K/yellow_finch_bird_symbolism.pdfIn PDF document text
    • http://takilajonireko.22web.org/how_to_fix_black_screen_with_cursor_on_laptop.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/61432546552.pdfIn PDF document text
    • https://konilusikiwi.weebly.com/uploads/1/3/3/9/133986353/ff077d686c569e4.pdfIn PDF document text
    • https://cdn.sqhk.co/toralapiluw/haUjhha/71538854992.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://marivugedada.epizy.com/fuxakosa.pdfIn PDF document text
    • http://ronarag.epizy.com/19369990442.pdfIn PDF document text
    • http://sikirubuguje.epizy.com/tizeb.pdfIn PDF document text
    • http://vowefaxi.epizy.com/zigiruledeliluda.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/flight_simulator_mod_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/gate_2016_answer_key_mechanical.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/52902852734.pdfIn PDF document text
    • http://zukanimi.epizy.com/nutrition_diagnostic_terminology_2020.pdfIn PDF document text
    • http://rixupod.rf.gd/businessman_telugu_movie_links.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/colors_tv_live_channel_app.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_off0000eb59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB59 5544 bytes
SHA-256: 234ca4c3f9c755eb310f7e1f7537d12499c500698508e7228c71eede73628f7b
font_01_sfnt_off0000fe1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1A 10256 bytes
SHA-256: 4f8ad1cdaafbe5e8cde018ec010e3a517b7f60c64f2e24d5c8865a921b02fce5

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