Malicious PDF — malware analysis report

Static analysis result for SHA-256 06006d7e4f4c885e…

MALICIOUS

PDF

74.7 KB Created: 2021-02-17 17:24:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 3d3019592d72c4f3329b05d54b87efb0 SHA-1: 6b7b1539aeb3214fb5116d7ffc6e35efc844a12c SHA-256: 06006d7e4f4c885e38de6cf37f8fcf97c75fdfccfd0bc7de7979975934d90199
104 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a software download link, likely intended to trick users into downloading malware. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest a phishing lure designed to initiate a download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wb?keyword=adobe%20premiere%20pro%20cs6%20free%20download%20for%20windows%20xp%2032%20bit PDF link annotation
    • http://trelon.fun/57507961998s0lfn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388617/normal_602b063054da3.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/bggWjeF/79710585540.pdfIn PDF document text
    • http://ing-cliente.com/time_traveler_2020_hurricanegmjcd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490128/normal_5ff71c5d2098f.pdfIn PDF document text
    • http://repair-telefonov.ru/dramatic_irony_in_to_kill_a_mockingbirdkfhy9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500201/normal_6005f64e57d8e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457620/normal_5ff7c49224239.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/bbDsHji/paypal_account_sign_up_bangladesh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465007/normal_601e8918e1530.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/amara_sri_herath_books.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/correctional_officer_interview_questions_and_answers_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/android_9._1_version_name.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/53882307668.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/cycling_computer_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/aptoide_versi_terbaru_2017.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_off0000e4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BE 6040 bytes
SHA-256: 55eae0b8f945f0500ae0845ccef7367871641133eadbea698b1ba94a5349acec
font_01_sfnt_off0000f948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF948 10560 bytes
SHA-256: 0582b48142fa04514dccf0b7027dd6d993a8d52321d4c65db173876b25a54b48

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