Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b0984eaed4f50ef…

MALICIOUS

PDF

46.2 KB Created: 2021-05-10 16:43:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d7f7aa995b1ee1a388dcec34dd09b0be SHA-1: 1a7aecba549cb82bd77950dfd0d870e0a7453931 SHA-256: 7b0984eaed4f50ef42a0b1ff2084bf0539882a88e61079d0ec55884ab31aa589
82 Risk Score

Malware Insights

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

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 0.9432

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/431946152/roblox-2021-hack-game-hack PDF link annotation
    • http://radiobuku.com/ipoestaka/repository/roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://radiobuku.com/ipoestaka/repository/free-robux-hack_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E50 24700 bytes
SHA-256: 29118f5695ecced0d9ecc932db68916486172e570d4ebc70173814b8678d0c72
font_01_sfnt_off0000871c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871C 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00009106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9106 18584 bytes
SHA-256: 0d052e0fccd73391d0e4376686c91c36ea26f223879c53cf61dff021e779cee2

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