Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f69bc0899a4be73…

MALICIOUS

PDF

51.5 KB Created: 2021-06-03 08:43:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 04e97dd8d3b75a72afd9b2aa09ca82dd SHA-1: 3381be4271200985789dda276743c78d567903aa SHA-256: 3f69bc0899a4be730162364e880dbab6968c1e69778b17f6e774318208ca6e8d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links and a call-to-action phrase designed to lure users into clicking on a URL that promises free game hacks. The primary URL, https://netcdn.online/app/431946152/robloxheroxyz-free-robux-game-hack, is associated with a game hack lure. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a potential for malicious redirection or download, aligning with common phishing and social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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/robloxheroxyz-free-robux-game-hack PDF link annotation
    • http://lib.icbc-indonesia.org/repository/pokemon-go-free-game_GM1094591345.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-spins-hack-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-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/games-that-give-free-robux_GM431946152.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_off00005186.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5186 38656 bytes
SHA-256: 2624e90145a7960e0159529dcef93e323289d9f9b9a872dcb020d899129fe5f2
font_01_sfnt_off0000a683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA683 18516 bytes
SHA-256: 7f1ed049da75acc608f0fe66657ee4628d82e762443bbdd60fa03b2ea4156da9

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