Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad4dfe7f6c4d93b1…

MALICIOUS

PDF

41.9 KB Created: 2021-05-11 02:07:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b3232797fbcb919c576956d9d03ae78a SHA-1: 12d518cda82f4da0935873f754c3cfaa077f653f SHA-256: ad4dfe7f6c4d93b13b27d2289112b426e978853c9593839aed123024270d5ebe
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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
  • 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://netcdn.xyz/app/406889139/coin-master-map-game-hack PDF link annotation
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://na.itk.ac.id/asset/backend/upload/ckeditor/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a0c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0C 24756 bytes
SHA-256: 4f3de971e45c38a6a4bdf9b32f04082f091fff7b33c8c5085ca29b0f8d2f9370
font_01_sfnt_off000082da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82DA 17724 bytes
SHA-256: 9e44998f7e34f80bf6f888723cb1b3627d3435beb85dab6869a809f9de55aede

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