Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9aafd378f5d0a17…

MALICIOUS

PDF

46.3 KB Created: 2021-06-09 01:48:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 52492b1db8baca1c3ded784949974bc0 SHA-1: 1b79b5dcd27649a82c6dbc7a582fa96c7c66d663 SHA-256: d9aafd378f5d0a1751619dcdb9ed6ba32954f4f8660c9c9dd787a5f5270458b0
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 0.9832

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.tw/app/431946152/roblox-papers-simulator-hacks-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/tiktok-free-likes_GM835599320.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-2021-no-verification_GM431946152.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
font_00_sfnt_off00004eb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB2 29508 bytes
SHA-256: 989bd50b3a57806d22ec81a3b0a5638d4f969da428d9aba7398bc2019ba4d7f7
font_01_sfnt_off00009006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9006 19136 bytes
SHA-256: 5b99bd86ec8b8daac2639f1ea0f69bd48ed9ed05f443cdee4ed0e33dafe2bae2

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