Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0014fb6b407824…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 07:00:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: fe610f907c43f604e6a1f70588f77567 SHA-1: 69eab5f0c02120f9c25ff8e657bbc6bd7c61b35b SHA-256: ce0014fb6b40782450e72bc4b638c9a959fda1b95ac8010ef7d9b1925b750c1b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacking, specifically for Roblox, directing users to a URL that appears to be a redirector for malicious content. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate the presence of external URIs and a game hack redirect lure. The document body contains obfuscated text and numerous URLs, suggesting an attempt to disguise the malicious intent and lead the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/how-do-you-hack-roblox-game-hack PDF link annotation
    • http://lib.icbc-indonesia.org//repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/easy-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50D5 25052 bytes
SHA-256: bef3bac78925974cfd41e378b0a89d5757fcd83608e37366a9eff9af5d9b6cd0
font_01_sfnt_off00008ae9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE9 18816 bytes
SHA-256: d27b94fe1a8c05d6feb56d9a091a96145976f0feb7173cb46f16c8470fe3a7d8

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