Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7a0cc0cd8c2da1f…

MALICIOUS

PDF

43.4 KB Created: 2021-05-12 03:12:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 68626e073299990c836fef40eaaedb12 SHA-1: a5785305db78a02f09b966f763cf60f06def8f66 SHA-256: a7a0cc0cd8c2da1f252d84c47a3415da8272778be374283123b85880fcdb6e4a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links and a heuristic firing for a game hack redirector lure, specifically pointing to 'roblox-gift-card-free-codes-game-hack'. The document body, though heavily obfuscated, contains references to game-related terms and the primary malicious URL. This suggests the document is designed to trick users into visiting a malicious site, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-gift-card-free-codes-game-hack PDF link annotation
    • http://www.fabbrotorino.eu/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/mcpe-com_GM479516143.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/www-coinmaster_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_003_off00004ad1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD1 25644 bytes
SHA-256: 7cad46f380c766e4bb0ca913267d616101dbd8f3f2a1e607362d9429c26b4677
font_01_sfnt_off0000868b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868B 18572 bytes
SHA-256: 9c63177eafc3ac88b713a1cd2104529c3a7676e5ce127b5a80c9c06234e3cf10

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